110 results on '"Hadianfar A"'
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2. A novel spatial heteroscedastic generalized additive distributed lag model for the spatiotemporal relation between PM2.5and cardiovascular hospitalization
- Author
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Ali Hadianfar, Helmut Küchenhoff, Shahab MohammadEbrahimi, and Azadeh Saki
- Subjects
Cardiovascular hospitalization ,PM2.5 ,Generalized additive distributed lag model ,Spatial Heteroscedastic generalized Additive distributed lag model ,Exposure-lag-response association ,Markov Random Field ,Medicine ,Science - Abstract
Abstract Many studies have examined the impact of air pollution on cardiovascular hospitalization (CVH), but few have looked at the delayed effects of air pollution on CVH. Additionally, there has been no research on the spatial and temporal differences in how environmental pollutants affect CVH. This study seeks to identify spatial heteroscedasticity in the relation between PM2.5 and CVH by developing a Generalized Additive Distributed Lag (GADL) model. Data on hospitalization due to cardiovascular disease were collected from the Hospital Information System (HIS) of Mashhad University of Medical Science from 2017 to 2020. Air pollution data from 22 air quality monitoring (AQM) stations were obtained from the Environmental Pollution Monitoring Center of Mashhad administrates. Markov Random Field (MRF) smoother was utilized in the GADL model to account for spatial heteroscedasticity in the observations. This developed model is a Spatial Heteroscedastic Generalized Additive Distributed Lag (SHGADL) model. Our use of GADL allowed us to discover a significant relationship between PM2.5 exposures and the risk of CVH at lags 0 and 1 in all districts. Our results reveal heteroscedasticity in the Relative Risks (RR) of PM2.5 on CVH across different districts. After accounting for this spatial heteroscedasticity, we found that the RR of PM2.5 on CVH at lags 0 and 1 were 1.0102 (95% CI: 1.0034, 1.0170) and 1.0043 (95% CI: 1.0009, 1.0078) respectively. The central and southeastern districts showed higher RR for CVH. The developed SHGADL model provides evidence of a significant lagged effect of PM2.5 exposures on CVH, and identifies low- and high-risk districts for CVH in Mashhad. This finding can assist decision-makers in allocating resources and planning strategically, with a focus on local interventions to manage ambient air pollution and providing emergency care for CVH.
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- 2024
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3. Survival Analysis of the Length of Hospital Stay of Suspected Stroke Patients Transferred by EMS to Ghaem Hospital in Mashhad
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Razieh Yousefi, Payam Sasannejad, Eisa Nazar, Ali Hadianfar, Mohammad Taghi Shakeri., and Zahra Jafari
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emergency medical services ,length of stay ,stroke ,survival analysis. ,Medicine (General) ,R5-920 - Abstract
Background: Identifying factors that influence the length of hospital stay for suspected stroke patients is crucial for optimizing the utilization of hospital resources. This study aimed to determine the factors associated with the length of hospital stay for suspected stroke patients transferred to Qaem Hospital in Mashhad through emergency services using survival analysis. Methods: In this historical cohort study, general information was gathered for all suspected stroke patients who sought emergency services in Mashhad, the largest city in northeast Iran, from March 21, 2018, to March 20, 2019, and were then transferred to the Emergency Department of Qaem Hospital. Pre-hospital emergency data were integrated with hospital records using the mission ID. The primary outcome assessed in the study was the length of hospital stay, with model implementation carried out using the statistical software Stata. Results: The median hospitalization time until patients' recovery was seven days. Out of the 578 participants, 386 cases (66.8%) recovered, while the remaining 190 cases (33.2%) were censored (83 individuals had died during the study, and 107 individuals had exited the hospital for other reasons). The average age of patients at the time of hospitalization was 71.13±13.01 years. Statistical analysis employing Log-rank and Breslow tests identified a significant difference in hospitalization duration among patients receiving various levels of care and based on their insurance status. During multivariate analysis, the Cox regression model was considered unsuitable due to some variables not meeting the proportional hazards assumption, leading to the utilization of AFT models. Following the evaluation of AFT models, including Log-normal, Log-logistic, Exponential, and Weibull, the log-normal model emerged as the most suitable choice, exhibiting AIC and BIC values of 1273.909 and 1356.740, respectively. Significant variables influencing length of stay included patient admission priority, insurance status, season, and residency status. Conclusion: The study suggests that parametric survival models are effective for analyzing lifetime data. Additionally, in light of the significant variables identified, enhancing facility readiness and resource allocation could facilitate more efficient planning and implementation.
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- 2024
4. Application of distributed lag models and spatial analysis for comparing the performance of the COVID-19 control decisions in European countries
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Ali Hadianfar, Sedigheh Rastaghi, Hamed Tabesh, and Azadeh Saki
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Medicine ,Science - Abstract
Abstract Over the past three years, the COVID-19 outbreak has become a major worldwide problem, affecting the health systems and economies of countries. The mean delays, the expected time to observe the average effect of the number of new cases on the number of deaths, are gold times for decision-making regarding disease control and treatment facilities to reduce the fatality rate. The interest of the present study is estimating the mean delays and adjusted fatality rates of COVID-19 with the new application of Distributed Lag Models (DLM) and their spatial distributions. The daily cases and deaths data of COVID-19 for 39 European countries was obtained from two sources; the "European Centre for Disease Prevention and Control" and the "Our World in Data" database. The mean delay and the Adjusted Fatality Rate (AFR) for each country at three-time intervals; the first and subsequent peaks before and after vaccination were estimated by the Distributed Lag Models. The spatial analysis was applied to find the spatial correlation of the mean delays and adjusted fatality rates among European countries. In the three-time intervals, the first and the subsequent peaks before vaccination, and after vaccination, the median and interquartile range of the mean delays; and AFRs were: 1.1 (0.4, 3.2); 0.024 (0.016, 0.044), 9.2 (6.2, 12.40); 0.013 (0.005, 0.020) and 7.3 (4.4, 11.0); 0.001 (0.001, 0.005), respectively. In the subsequent peaks before vaccination, the mean delays considerably increased, and the AFRs decreased for most European countries. After vaccination, the AFRs decreased considerably. Except for the first peak, the spatial correlations of AFRs were not significant among neighboring countries. Consecutive outcomes will occur with delays in outbreaks of infectious disease. Also, the fatality rates for these outcomes should be adjusted on delays. Estimating the mean delays and adjusted fatality rates by Distributed lag Models and the spatial distributions of theme in outbreaks showed that prevention and medical policies after the first peak as well as vaccination were effective to reduce the fatality rate of COVID-19, but these effects were different between countries. These results recommended policymakers and governments assign prevention and medical resources more effectively.
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- 2023
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5. Application of distributed lag models and spatial analysis for comparing the performance of the COVID-19 control decisions in European countries
- Author
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Hadianfar, Ali, Rastaghi, Sedigheh, Tabesh, Hamed, and Saki, Azadeh
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- 2023
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6. Predictors of in-hospital mortality among patients with symptoms of stroke, Mashhad, Iran: an application of auto-logistic regression model
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Hadianfar, Ali, Sasannezhad, Payam, Nazar, Eisa, Yousefi, Razieh, Shakeri, Mohammadtaghi, Jafari, Zahra, and Hashtarkhani, Soheil
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- 2023
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7. Comparison of decision tree with common machine learning models for prediction of biguanide and sulfonylurea poisoning in the United States: an analysis of the National Poison Data System
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Mehrpour, Omid, Saeedi, Farhad, Nakhaee, Samaneh, Tavakkoli Khomeini, Farbod, Hadianfar, Ali, Amirabadizadeh, Alireza, and Hoyte, Christopher
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- 2023
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8. Comparison of decision tree with common machine learning models for prediction of biguanide and sulfonylurea poisoning in the United States: an analysis of the National Poison Data System
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Omid Mehrpour, Farhad Saeedi, Samaneh Nakhaee, Farbod Tavakkoli Khomeini, Ali Hadianfar, Alireza Amirabadizadeh, and Christopher Hoyte
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Biguanide ,Sulfonylurea ,Overdose ,Decision tree ,National Poison Data System ,NPDS ,Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
Abstract Background Biguanides and sulfonylurea are two classes of anti-diabetic medications that have commonly been prescribed all around the world. Diagnosis of biguanide and sulfonylurea exposures is based on history taking and physical examination; thus, physicians might misdiagnose these two different clinical settings. We aimed to conduct a study to develop a model based on decision tree analysis to help physicians better diagnose these poisoning cases. Methods The National Poison Data System was used for this six-year retrospective cohort study.The decision tree model, common machine learning models multi layers perceptron, stochastic gradient descent (SGD), Adaboosting classiefier, linear support vector machine and ensembling methods including bagging, voting and stacking methods were used. The confusion matrix, precision, recall, specificity, f1-score, and accuracy were reported to evaluate the model’s performance. Results Of 6183 participants, 3336 patients (54.0%) were identified as biguanides exposures, and the remaining were those with sulfonylureas exposures. The decision tree model showed that the most important clinical findings defining biguanide and sulfonylurea exposures were hypoglycemia, abdominal pain, acidosis, diaphoresis, tremor, vomiting, diarrhea, age, and reasons for exposure. The specificity, precision, recall, f1-score, and accuracy of all models were greater than 86%, 89%, 88%, and 88%, respectively. The lowest values belong to SGD model. The decision tree model has a sensitivity (recall) of 93.3%, specificity of 92.8%, precision of 93.4%, f1_score of 93.3%, and accuracy of 93.3%. Conclusion Our results indicated that machine learning methods including decision tree and ensembling methods provide a precise prediction model to diagnose biguanides and sulfonylureas exposure.
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- 2023
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9. Predictors of in-hospital mortality among patients with symptoms of stroke, Mashhad, Iran: an application of auto-logistic regression model
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Ali Hadianfar, Payam Sasannezhad, Eisa Nazar, Razieh Yousefi, Mohammadtaghi Shakeri, Zahra Jafari, and Soheil Hashtarkhani
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Suspected stroke ,In-hospital mortality ,Emergency medical services ,Auto-logistic model ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Stroke is the second leading cause of death in adults worldwide. There are remarkable geographical variations in the accessibility to emergency medical services (EMS). Moreover, transport delays have been documented to affect stroke outcomes. This study aimed to examine the spatial variations in in-hospital mortality among patients with symptoms of stroke transferred by EMS, and determine its related factors using the auto-logistic regression model. Methods In this historical cohort study, we included patients with symptoms of stroke transferred to Ghaem Hospital of Mashhad, as the referral center for stroke patients, from April 2018 to March 2019. The auto-logistic regression model was applied to examine the possible geographical variations of in-hospital mortality and its related factors. All analysis was performed using the Statistical Package for the Social Sciences (SPSS, v. 16) and R 4.0.0 software at the significance level of 0.05. Results In this study, a total of 1,170 patients with stroke symptoms were included. The overall mortality rate in the hospital was 14.2% and there was an uneven geographical distribution. The results of auto-logistic regression model showed that in-hospital stroke mortality was associated with age (OR = 1.03, 95% CI: 1.01–1.04), accessibility rate of ambulance vehicle (OR = 0.97, 95% CI: 0.94–0.99), final stroke diagnosis (OR = 1.60, 95% CI: 1.07–2.39), triage level (OR = 2.11, 95% CI: 1.31–3.54), and length of stay (LOS) in hospital (OR = 1.02, 95% CI: 1.01–1.04). Conclusion Our results showed considerable geographical variations in the odds of in-hospital stroke mortality in Mashhad neighborhoods. Also, the age- and sex-adjusted results highlighted the direct association between such variables as accessibility rate of an ambulance, screening time, and LOS in hospital with in-hospital stroke mortality. Thus, the prognosis of in-hospital stroke mortality could be improved by reducing delay time and increasing the EMS access rate.
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- 2023
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10. Comparison of Thyroid Function in Lead-Poisoned Patients and Healthy Individuals in Eastern Iran
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Nakhaee, Samaneh, Rezayee, Maryam, Mansouri, Borhan, Hadianfar, Ali, zadeh, Alireza Amirabadi, Zardast, Mahmoud, Sefat, Malihe Parsa, and Mehrpour, Omid
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- 2022
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11. A novel spatial heteroscedastic generalized additive distributed lag model for the spatiotemporal relation between PM2.5and cardiovascular hospitalization.
- Author
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Hadianfar, Ali, Küchenhoff, Helmut, MohammadEbrahimi, Shahab, and Saki, Azadeh
- Abstract
Many studies have examined the impact of air pollution on cardiovascular hospitalization (CVH), but few have looked at the delayed effects of air pollution on CVH. Additionally, there has been no research on the spatial and temporal differences in how environmental pollutants affect CVH. This study seeks to identify spatial heteroscedasticity in the relation between PM2.5 and CVH by developing a Generalized Additive Distributed Lag (GADL) model. Data on hospitalization due to cardiovascular disease were collected from the Hospital Information System (HIS) of Mashhad University of Medical Science from 2017 to 2020. Air pollution data from 22 air quality monitoring (AQM) stations were obtained from the Environmental Pollution Monitoring Center of Mashhad administrates. Markov Random Field (MRF) smoother was utilized in the GADL model to account for spatial heteroscedasticity in the observations. This developed model is a Spatial Heteroscedastic Generalized Additive Distributed Lag (SHGADL) model. Our use of GADL allowed us to discover a significant relationship between PM2.5 exposures and the risk of CVH at lags 0 and 1 in all districts. Our results reveal heteroscedasticity in the Relative Risks (RR) of PM2.5 on CVH across different districts. After accounting for this spatial heteroscedasticity, we found that the RR of PM2.5 on CVH at lags 0 and 1 were 1.0102 (95% CI: 1.0034, 1.0170) and 1.0043 (95% CI: 1.0009, 1.0078) respectively. The central and southeastern districts showed higher RR for CVH. The developed SHGADL model provides evidence of a significant lagged effect of PM2.5 exposures on CVH, and identifies low- and high-risk districts for CVH in Mashhad. This finding can assist decision-makers in allocating resources and planning strategically, with a focus on local interventions to manage ambient air pollution and providing emergency care for CVH. [ABSTRACT FROM AUTHOR]
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- 2024
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12. The effect of topical olive oil application on the symptoms of infantile colic: A randomized, double‐blind, placebo‐controlled clinical trial
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Maryam Mohammadian‐Dameski, AhmadShah Farhat, Monavar Afzal Aghaee, Zohreh Nademi, Ali Hadianfar, Matin Shirazinia, Maliheh Motavasselian, and Vahid Reza Askari
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abdominal massage ,clinical trial ,infantile colic ,olive oil ,Persian medicine ,Medicine - Abstract
Abstract Background and Aims Infantile colic is one of the most common disorders in the first months of infants' lives. This condition hurts parents' moods. This study was carried out to investigate the effect of the topical use of olive oil on infantile colic symptoms. Methods The study was carried out on 80 infants 1–3 months old, randomly allocated into two groups, receiving abdominal massage with olive oil thrice a day in the intervention group (n = 40) and the same procedure with liquid paraffin in the placebo group (n = 40), for 14 successive days. During this period, the parents recorded the episodes of colic, duration of colic, crying intensity, and episodes of defecation. These variables were assessed and compared at the beginning and on the 7th and 14th days. Results The mean crying duration changed from 4.05 ± 2.44 to 1.41 ± 1.03 h/day (65% decrease) in the olive oil group and from 3.85 ± 1.37 to 1.60 ± 1.32 h/day (58% decrease) in the paraffin group (p = 0.38). The episodes of crying were reduced from 5.79 ± 4.56 to 2.51 ± 4.93 episodes/day (↓57%) in the olive group and from 6.01 ± 3.40 to 3.01 ± 2.40 episodes/day (↓50%) in the paraffin oil group (p = 0.14). Furthermore, the intensity of crying was decreased from 9.04 ± 1.54 to 4.48 ± 2.17 (p
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- 2023
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13. Virtual Reality Technology in Tourism Destination Marketing
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Niloufar Hadianfar and Abdolhadi Darzian Azizi
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destination marketing ,destination image ,intention to visit ,word of mouth advertisement ,virtual reality ,Business ,HF5001-6182 - Abstract
ObjectiveGiven the recession and crises such as the Covid-19 Pandemic, tourism destinations and related businesses are attempting to continue to expose their tourism destinations and capacities to potential tourists. They also aim to encourage them by providing extra facilities to visit these tourism destinations once the crisis is over. Virtual reality technology seems to be an effective instrument for this purpose, which highlights the significance of using this technology in the present situation. Virtual reality is regarded as an ICT-enabled technology with the potential to provide a highly interactive experience for potential tourists and inspire them to visit these destinations in the future. This study aims to investigate the impacts of virtual reality technology on tourists’ behavioral intentions and the image of the tourism destination. MethodologyThe present study is descriptive-applied in nature. The required data will be collected using online questionnaire and available sampling method. The statistical population of the study includes all the tourists who usually use various mobile applications for their travels. For this purpose, a 360-degree virtual video from three popular tourism destinations in Khuzestan province were selected. The sample of this research includes 267 visitors. The reliability and validity of the research constructs were confirmed using Cronbach's alpha coefficient and mean extraction variance. Besides, research hypotheses were also tested using Smart-PLS3 software. FindingsThe results illustrate that “sense of presence” and “aesthetic experience” are the two the variables with a significantly positive impact on satisfaction with virtual reality. Moreover, satisfaction with virtual reality has a positive and significant effect on behavioral conflict and behavioral conflict has a significantly positive effect on the intention to visit the destination, verbal recommendation, and the destination image. ConclusionBased on the results of this study, virtual reality technology has a positive effect on tourist behavior and destination image. Accordingly, if virtual reality applications and programs can provide their users with a sense of presence in the scene, a more realistic experience, a more unique instances of aesthetic effects and principles, these users will experience greater satisfaction with the virtual travel experience. While attracting and motivating the users, this can lead to more engagement and interaction with the tourism experience. In addition, the higher the users are engaged with the experience and the more time and energy they spend interacting and participating in the virtual experience, the greater the likelihood of observing behavioral reactions. Therefore, higher engagement with the experience of visiting a destination virtually can help increase their intention to actually visit that destination in the future. Moreover, users who have had a more rewarding experience based on their engagement with the destination, will be more likely to share their experiences with others and recommend them. In addition, such a unique experience of interaction and engagement with the tourism destination and its attractions can creates a more desirable feeling toward the destination and increase the credibility and desirability of the destination. Eventually, it can also help improve the brand image of that tourism destination.
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- 2021
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14. Identify successful restrictions in suppressing the early outbreak of COVID-19 in Arizona, United States: Interrupted time series analysis
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Ali Hadianfar, Milad Delavary, Martin Lavallière, Amir Nejatian, and Omid Mehrpour
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Medicine ,Science - Published
- 2023
15. Assessment of Randomized Controlled Clinical Trials articles in Iranian Journal of Obstetrics, Gynecology and Infertility: 2009-2019
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Mohammad Taghi Shakeri, Ali Taghipour, Davoud Tanbakouchi, Mahboobe Sharifi Moghadam Bajestani, Reyhane Sadeghi, Ali Hadianfar, and Razieh Yousefi
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critical evaluation ,clinical trial ,randomization ,Gynecology and obstetrics ,RG1-991 - Abstract
Introduction: Randomized controlled clinical trial studies are the most valuable types of studies that their proper design and accurate reporting are of particular importance in medical science. This study was performed with aim to critically evaluate the randomized controlled clinical trial studies in the Iranian Journal of Obstetrics, Gynecology and Infertility. Methods: In this cross-sectional analytic study, the clinical trial articles of the Iranian Journal of Obstetrics, Gynecology and Infertility between 2009 and 2019 were collected and scored based on the latest edition of the Consort Checklist (2010) by three biostatisticians that their training's adequacy was confirmed by measuring the kappa agreement coefficient. The articles were scored, and based on the scores, they were classified into five categories: very poor to excellent. Data were analyzed by SPSS software (version 25) and descriptive statistics. Results: Out of a total of 1318 articles published during 11 years, 325 were clinical trials, among them only 6 articles (1.85%) were rated as excellent. The lowest and highest scores among the reviewed articles were 14 and 28 (maximum score was 37). The mean and standard deviation of the scores obtained in all articles was calculated as 19.05± 0.34. However, less attention was paid to the two main issues of randomization and blindness in the clinical trials. Conclusion: Due to the importance of clinical trial studies, it is necessary to pay attention to the articles' quality based on the consort checklist. It is also suggested that authors of such articles pay more attention to the two essential foundations of clinical studies, randomization and blindness, to increase the generalization of the results.
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- 2021
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16. Factors affecting the adoption of VR in tourism (According to TAM)
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Abdolhadi Darzian Azizi, niloufar hadianfar, and Aliyeh Maleki
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tam ,tourism ,vr ,Management. Industrial management ,HD28-70 ,Management of special enterprises ,HD62.2-62.8 - Abstract
Today the emergence of digital technologies has dramatically changed tourism industry. Among these modern technologies is Virtual Reality (VR). Nevertheless, VR technology has not been extremely used by tourist destinations in Iran, yet. So this study investigates Iranian attitude and behavioral intentions toward adoption VR technology in tourism. The sample of the study totaled 260 visitors from three different destinations by VR technology. Online questionnaire and convenience sampling method were used to collect data research. The research hypotheses were tested using smart PLS3 software. this research is among the first studies investigated Iranian attitude toward using VR, The results can be beneficial for managers and marketers of tourism destinations and help them in utilizing this technology as an effective advertising and promotional marketing tool.
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- 2021
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17. Evaluation of the Relative Risk of Covid-19 Mortality Based on the Number of Hospitalizations in Iran using A Log-Linear Distributed Lag Model
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A Hadianfar, S Rastaghi, and A Saki
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mortality ,covid-19 ,relative risk ,log-linear distributed lag model ,iran ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Background and Objectives: The Covid-19 epidemic began in Wuhan, China in the late 2019 and became a global epidemic in March 2020. In this regard, one of the most important indicators of the healthcare systems is the in-hospital mortality rate, which occurs with a time lag of one to two weeks after hospitalization. The aim of this study was to investigate the relative risk of Covid-19 mortality considering this time lag according to the number of daily hospitalizations. Methods: The data included the number of daily hospitalizations and deaths from Covid-19 from 15 May 2020 to 10 February 2021 in Iran, which was obtained from the Github database. A log-linear distributed lag model was used to evaluate the relationship and lag effect between daily hospitalization and relative risk of death. Results: The mean number of daily hospitalizations and deaths were 1342.2 ± 7 731.5 and 190.6 11±118.6 in the study period, respectively. It was found that an increase in the number of daily hospitalizations had a significant relationship with an increase in the relative risk of death on the same day and in the following days. As the number of hospitalizations exceeded 2000 patients per day, the cumulative relative risk of death increased to more than one. Conclusion: The results showed that the number of hospitalizations exceeding 2000 people per day was an alert for the countrychr('39')s healthcare system. Overall, prevention and observance of health protocols in the first level followed by early diagnosis of the disease, improving the hospitals facilities and preparedness of healthcare staff can reduce the relative risk of death in the possible future peaks.
- Published
- 2021
18. Impact of Social Media Marketing on Consumer-Based Brand Equity for Tourism Destination: Evidence from Isfahan, Iran
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Niloufar Hadianfar
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social media marketing ,consumer-based brand equity ,isfahan ,tourism ,Bibliography. Library science. Information resources ,Communication. Mass media ,P87-96 - Abstract
Background: Destination branding and social media strategy may be a major and strong marketing and promotional tool for destination marketers. Today tourism has been greatly affected by social media platforms. Besides being a major source of information, these tools can facilitate the interaction process among tourists and provide them with customized and personalized offers. These activities can ultimately lead to enhanced destination brand equity.Purpose: The present study attempts to investigate the impact of social media marketing on consumer-based brand equity components for tourism destinations.Method: The sample of the study totaled 149 visitors from Isfahan. Online questionnaires and convenience sampling methods were used to collect data research. The research hypotheses were tested using smart PLS software.Results: The results showed that there is a statistically positive and significant impact of social media marketing on destination brand awareness, destination brand image, destination brand quality, and destination brand loyalty.Conclusion: As the results show, social media marketing is an effective marketing tool to improve tourism marketing that in turn can enhance destination brand equity. These results are beneficial for tourism destination marketers and managers. Social media marketing as a prominent marketing tool can strengthen destination brand equity and potentially influence tourists’ behavior
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- 2021
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19. Impact of Social Media Marketing on Consumer-Based Brand Equity for Tourism Destination: Evidence from Isfahan, Iran
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Hadianfar, Niloufar
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B. Information use and sociology of information ,BD. Information society. - Abstract
Background: Destination branding and social media strategy may be a major and strong marketing and promotional tool for destination marketers. Today tourism has been greatly affected by social media platforms. Besides being a major source of information, these tools can facilitate the interaction process among tourists and provide them with customized and personalized offers. These activities can ultimately lead to enhanced destination brand equity. Purpose: The present study attempts to investigate the impact of social media marketing on consumer-based brand equity components for tourism destinations. Method: The sample of the study totaled 149 visitors from Isfahan. Online questionnaires and convenience sampling methods were used to collect data research. The research hypotheses were tested using smart PLS software. Results: The results showed that there is a statistically positive and significant impact of social media marketing on destination brand awareness, destination brand image, destination brand quality, and destination brand loyalty. Conclusion: As the results show, social media marketing is an effective marketing tool to improve tourism marketing that in turn can enhance destination brand equity. These results are beneficial for tourism destination marketers and managers. Social media marketing as a prominent marketing tool can strengthen destination brand equity and potentially influence tourists’ behavior
- Published
- 2021
20. The Effect of Pomegranate Juice and Sumac Consumption in the Treatment of Outpatients with COVID-19
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Fatemeh Forouzanfar, Mohammadreza Ahmadpoor, Mostafa Moshirian Farahi, Ali Hadianfar, Amirhossein Sahebkar, Habibollah Esmaily, Mohsen Nematy, and Hassan Rakhshandeh
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Pathology ,RB1-214 - Abstract
Introduction. COVID-19, an epidemic of coronavirus infection, has become a major global threat. The coronavirus mainly targets the human respiratory system, followed by cytokine storm, and altered immune responses associated with disease progression and adverse outcomes. Sumac and pomegranate juice are rich in bioactive compounds, which potentially have antiviral activities. This study is aimed at investigating the effect of a diet based on the use of sumac and pomegranate juice on the treatment of outpatients with COVID-19. Methods. In this study, 182 outpatients with COVID-19 were randomly divided into two groups receiving a diet containing pomegranate juice and sumac along with standard treatment and the control group (group 2) receiving standard treatment. Results. Consumption of a diet containing pomegranate juice and sumac in outpatients with COVID-19, who were receiving standard-of-care treatment, led to a significant decrease in fever, chills, cough, weakness, smell and taste disorders, shortness of breath, diarrhea, nausea and vomiting, and abdominal pain compared with outpatients with COVID-19 who received only standard treatment. Conclusion. Clinical trials of outpatients have limitations such as patients’ resilience to post-COVID-19 follow-up. However, the use of pomegranate juice and sumac can be efficacious in reducing COVID-19 symptoms. This trial is registered with IRCT20190406043175N3.
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- 2022
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21. Identify successful restrictions in suppressing the early outbreak of COVID-19 in Arizona, United States: Interrupted time series analysis
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Hadianfar, Ali, primary, Delavary, Milad, additional, Lavallière, Martin, additional, Nejatian, Amir, additional, and Mehrpour, Omid, additional
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- 2023
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22. Spatial Analysis of Hospitalized Burn Injuries and Related Risk Factors in Mashhad, Iran
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A Ahmadabadi, H Aghajani, M Khadem Rezaiyan, M Zanganeh, SH Tavousi, and A Hadianfar
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severe burns ,spatial analysis ,spatial generalized linear model ,mashhad ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Background and Objectives: Burns are tragic events with considerable mortality rates. This study was conducted to analyze the spatial pattern of burns and identify the factors associated with the burn injuries in Mashhad, Iran. Methods: This retrospective cross-sectional study was conducted in patients hospitalized in Imam Reza Hospital Burn Center, Mashhad, which is the only referral burn center in the northeast of Iran. Spatial generalized linear models (Poisson and negative binomial) were used to model the association between socio-economic characteristics and the incidence of burn injury. Results: A total of 1044 acute burn patients (69.9% male, 30.1% female) were reviewed. Most of the burned patients were in the age group 20-29 years (41.4%). The most common cause of burn injury was flame (64.6%). The local test of spatial autocorrelation confirmed that the burns had cluster pattern in the central areas of the city and the worn-out urban texture was at higher risk of burns. The results of model showed that the percentage of worn-out urban texture (IRR =1.007; 95%CI 1.005-1.008), literacy (IRR =0.98; 95% CI 0.95-0.99), percentage of employed women (IRR =0.96; 95%CI 0.92-0.99), unemployment rate (IRR =0.92; 95%CI 0.85-0.99) and percentage of margination (IRR =1.006; 95%CI 1.005-1.008) were associated with burns. Conclusion: Based on the findings, socio-economic and environmental characteristics are associated with the incidence of burn injuries in different areas. The results of this study could be used to design burn prevention strategies, especially in the high-risk areas and groups.
- Published
- 2019
23. Geospatial Analysis of Acute Poisonings at Mashhad, Iran in 2013
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Mohammad Taghi Shakeri, Seyed Ehsan Saffari, Bita Dadpour, Hossein Aghajani, Ali Hadianfar, and Reza Afshari
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poisoning ,iran ,spatial analysis ,spatial autocorrelation ,Toxicology. Poisons ,RA1190-1270 - Abstract
Background: Geospatial distribution analysis is a highly useful tool, especially in the field of health research and health economics. We aimed to study the geospatial distribution of poisoned patients and the risk factors in Mashhad, Iran. Methods: This was a retrospective cross-sectional study of patients treated at the Medical Toxicology Center, Imam Reza Hospital, Mashhad, Iran, which is the only referral center in northeast of Iran, in 2013. Negative binomial and Poisson approach via generalized linear mixed models were performed to investigate the association between socio-demographic characteristics with the number of reported cases of poisoning. Results: A total of 5064 poisoned patients (52% females) were included. Most of the poisoned patients were within the age group of 20-29 years old (41.4%). Pharmaceutical agents were the most common cause of poisonings (64.6%). The local test of spatial autocorrelation (Moran’s I) confirms that the poisoning had cluster pattern in Mashhad. Number of poisoning events were found to be associated with population density (RR= 1.00011; 95% CI 1.0001-1.00013), and the frequency of people with less than high school education (RR=1.49; 95% CI 1.32-1.68). Conclusion: The geospatial factors may have impact on the number of acute poisoning events in a city. Some parts of a city may exhibit spatial clustering in poisoning events. Once clusters are found, interventions can be focused to specific geographic locations and would be helpful for healthcare policymakers to focus on prevention programs.
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- 2019
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24. Effects of government policies and the Nowruz holidays on confirmed COVID-19 cases in Iran: An intervention time series analysis.
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Ali Hadianfar, Razieh Yousefi, Milad Delavary, Vahid Fakoor, Mohammad Taghi Shakeri, and Martin Lavallière
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Medicine ,Science - Abstract
BackgroundPublic health policies with varying degrees of restriction have been imposed around the world to prevent the spread of coronavirus disease 2019 (COVID-19). In this study, we aimed to evaluate the effects of the implementation of government policies and the Nowruz holidays on the containment of the COVID-19 pandemic in Iran, using an intervention time series analysis.MethodsDaily data on COVID-19 cases registered between February 19 and May 2, 2020 were collected from the World Health Organization (WHO)'s website. Using an intervention time series modeling, the effect of two government policies on the number of confirmed cases were evaluated, namely the closing of schools and universities, and the implementation of social distancing measures. Furthermore, the effect of the Nowruz holidays as a non-intervention factor for the spread of COVID-19 was also analyzed.ResultsThe results showed that, after the implementation of the first intervention, i.e., the closing of universities and schools, no statistically significant change was found in the number of new confirmed cases. The Nowruz holidays was followed by a significant increase in new cases (1,872.20; 95% CI, 1,257.60 to 2,476.79; pConclusionThe Nowruz holidays and the implementation of social distancing measures in Iran were related to a significant increase and decrease in COVID-19 cases, respectively. These results highlight the necessity of measuring the effect of health and social interventions for their future implementations.
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- 2021
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25. Augmented Reality Technology: A Novel Marketing Tool in Tourism Industry
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hadianfar, niloufar, primary
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- 2023
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26. Identify successful restrictions in suppressing the early outbreak of COVID-19 in Arizona, United States : interrupted time series analysis
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Alam, Mumtaz, Hadianfar, Ali, Delavary, Milad, Lavallière, Martin, Nejatian, Amir, Mehrpour, Omid, Alam, Mumtaz, Hadianfar, Ali, Delavary, Milad, Lavallière, Martin, Nejatian, Amir, and Mehrpour, Omid
- Abstract
COVID-19 was responsible for many deaths and economic losses around the globe since its first case report. Governments implemented a variety of policies to combat the pandemic in order to protect their citizens and save lives. Early in 2020, the first cases were reported in Arizona State and continued to rise until the discovery of the vaccine in 2021. A variety of strategies and interventions to stop or decelerate the spread of the pandemic has been considered. It is recommended to define which strategy was successful for disease propagation prevention and could be used in further similar situations. This study aimed to evaluate the effect of people’s contact interventions strategies which were implemented in Arizona State and their effect on reducing the daily new COVID-19 cases and deaths. Their effect on daily COVID-19 cases and deaths were evaluated using an interrupted time series analysis during the pandemic’s first peaks to better understand the onward situation. Canceling the order of staying at home (95% CI, 1718.52 to 6218.79; p <0.001) and expiring large gatherings (95% CI, 1984.99 to 7060.26; p<0.001) on June 30 and August 17, 2020, respectively, had a significant effect on the pandemic, leading to the daily cases to grow rapidly. Moreover, canceling the stay at home orders led to an increase in the number of COVID-19 daily deaths by 67.68 cases (95% CI, 27.96 to 107.40; p<0.001) after about 21 days while prohibiting large gatherings significantly decreased 66.76 (95% CI: 20.56 to 112.96; p = 0.004) the number of daily deaths with about 21 days’ lag. The results showed that strategies aimed at reducing people’s contact with one another could successfully help fight the pandemic. Findings from this study provide important evidence to support state-level policies that require observance of social distancing by the general public for future pandemics.
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- 2023
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27. The effect of topical olive oil application on the symptoms of infantile colic: A randomized, double‐blind, placebo‐controlled clinical trial
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Mohammadian‐Dameski, Maryam, primary, Farhat, AhmadShah, additional, Afzal Aghaee, Monavar, additional, Nademi, Zohreh, additional, Hadianfar, Ali, additional, Shirazinia, Matin, additional, Motavasselian, Maliheh, additional, and Askari, Vahid Reza, additional
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- 2023
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28. 593 Presentation of a model for establishing zero vision on road traffic injuries
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Hamid Soori, SK Hadianfar, E Jahani, D Khorasani-Zavareh, and H Safarpour
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- 2022
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29. The Effect of Pomegranate Juice and Sumac Consumption in the Treatment of Outpatients with COVID-19
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Forouzanfar, Fatemeh, primary, Ahmadpoor, Mohammadreza, additional, Farahi, Mostafa Moshirian, additional, Hadianfar, Ali, additional, Sahebkar, Amirhossein, additional, Esmaily, Habibollah, additional, Nematy, Mohsen, additional, and Rakhshandeh, Hassan, additional
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- 2022
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30. 593 Presentation of a model for establishing zero vision on road traffic injuries
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Soori, Hamid, primary, Hadianfar, SK, additional, Jahani, E, additional, Khorasani-Zavareh, D, additional, and Safarpour, H, additional
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- 2022
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31. Comparison of Thyroid Function in Lead-Poisoned Patients and Healthy Individuals in Eastern Iran
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Borhan Mansouri, Maryam Rezayee, Omid Mehrpour, Alireza Amirabadi Zadeh, Mahmoud Zardast, Samaneh Nakhaee, Malihe Parsa Sefat, and Ali Hadianfar
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endocrine system ,medicine.medical_specialty ,Triiodothyronine ,endocrine system diseases ,medicine.diagnostic_test ,business.industry ,Endocrinology, Diabetes and Metabolism ,Biochemistry (medical) ,Clinical Biochemistry ,Thyroid ,General Medicine ,medicine.disease ,Biochemistry ,Thyroid function tests ,Gastroenterology ,Lead poisoning ,Inorganic Chemistry ,medicine.anatomical_structure ,Thyroid-stimulating hormone ,Internal medicine ,Linear regression ,medicine ,Thyroid function ,business ,Hormone - Abstract
Lead (Pb) is a prevalent environmental toxic metal that may harmfully affect the function of the thyroid gland. Our information about the effects of lead on thyroid function in lead poisoning is limited. The present study aimed to evaluate thyroid function in lead-poisoned patients compared with the healthy group. In this study, two groups of lead poisoning subjects (lead concentrations ≥ 25 μg/dL) (n = 56) (HBLC group) and randomly selected age and gender-matched healthy individuals with lower blood lead concentrations (BLC
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- 2021
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32. Distinguishing characteristics of exposure to biguanide and sulfonylurea anti-diabetic medications in the United States
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Mehrpour, Omid, primary, Saeedi, Farhad, additional, Hoyte, Christopher, additional, Hadianfar, Ali, additional, Nakhaee, Samaneh, additional, and Brent, Jeffrey, additional
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- 2022
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33. Spatial Variation of The Delay and Long-Run Effects In The Occurrence of Covid-19 Deaths Among European Countries
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Ali Hadianfar, Sedighe Rastaghi, Nooshin Akbari Sharak, Azadeh Saki, and Pradeep Mishra
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Background: Over the past two years, the COVID-19 disease has become a global problem, affecting the health systems and economies of countries throughout the world. New cases and hospitalizations associated with the disease appear to affect the number of deaths caused by coronavirus infection. COVID-19 causes a variable number of hospital deaths each day, and the projected mortality rate fluctuates according to the daily tally of new cases. Using a distributed-lag model, this study tries to quantify the influence of COVID-19 new cases on death rates in Europe.Material and method: The "European Centre for Disease Prevention and Control" database was used to gather information on daily Covid-19 cases and deaths in 49 European nations. In the first half and second half of 2020, each of the 49 countries was fitted with the Distributed Lag Model (DLM).Results: The European continent saw an average of 13.5 days between daily Covid-19 new cases and mortality. For the first half and second half of 2020, results from the fitting of the Distributed Lag Model showed that there was a wide range of values for mean delay and long-term effects in Europe.Conclusion: European countries differ in terms of the mean delay and long-term impacts for the first and second half of 2020, according to the findings of the study. Understanding the time lag between new cases and deaths in the COVID-19 pandemic will help policymakers and governments use medical resources more effectively and provide better healthcare interventions that are more impactful.
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- 2022
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34. Spatial Variation of The Delay and Long-Run Effects In The Occurrence of Covid-19 Deaths Among European Countries
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Hadianfar, Ali, primary, Rastaghi, Sedighe, additional, Sharak, Nooshin Akbari, additional, Saki, Azadeh, additional, and Mishra, Pradeep, additional
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- 2022
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35. Distinguishing characteristics of exposure to biguanide and sulfonylurea anti-diabetic medications in the United States
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Omid Mehrpour, Farhad Saeedi, Christopher Hoyte, Ali Hadianfar, Samaneh Nakhaee, and Jeffrey Brent
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Adult ,Diarrhea ,Adolescent ,Vomiting ,Nausea ,General Medicine ,Middle Aged ,Dizziness ,Hypoglycemia ,Metformin ,United States ,Abdominal Pain ,Young Adult ,Sulfonylurea Compounds ,Creatinine ,Tremor ,Emergency Medicine ,Diabetes Mellitus ,Vertigo ,Humans ,Hypoglycemic Agents ,Acidosis ,Child ,Aged ,Retrospective Studies - Abstract
Biguanides and sulfonylureas are anti-hyperglycemic drugs commonly used in the United States. Poisoning with these drugs may lead to serious consequences. The diagnosis of biguanide and sulfonylurea poisoning is based on history, clinical manifestations, and laboratory studies.This study is a six-year retrospective cohort analysis based on the National Poison Data System. Clinical effects of 6183 biguanide and sulfonylurea exposures were identified using binary logistic regression.The mean age of patients with biguanide and sulfonylurea exposure was 39.27 ± 28.91 and 28.91 ± 30.41 years, respectively. Sulfonylurea exposure is most commonly seen via unintentional exposure, while biguanide exposure frequently occurs as a result of intentional ingestion. Minor and moderate outcomes commonly developed following biguanide and sulfonylurea exposure, respectively. Sulfonylurea exposure was less likely to develop clinical effects abdominal pain, metabolic acidosis, diarrhea, nausea, vomiting, and elevated creatinine than patients ingesting biguanides. However, sulfonylurea exposure was more likely to cause dizziness or vertigo, tremor, drowsiness or lethargy, agitation, diaphoresis, and hypoglycemia.Our study is the first to use a wide range of national data to describe the clinical characteristics that differentiate the toxicologic exposure to biguanides and sulfonylureas. Sulfonylurea exposure is commonly seen via unintentional exposure, while metformin exposure is frequently seen via intentional exposure. Sulfonylurea toxicity is more likely to cause agitation, dizziness or vertigo, tremor, diaphoresis, and hypoglycemia, while metformin exposure induces abdominal pain, acidosis, diarrhea, nausea, vomiting, and elevated creatinine.
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- 2022
36. Impact of Covid-19 Restrictions and Fuel Price on Traffic Volume and Offenses in Iran: A Spatiotemporal Analysis
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Milad Delavary, Amir Hossein Kalantari, Hossein Farsangi, Abolfazl Mohammadzadeh Moghadam, Ali Hadianfar, Ward Vanlaar, and Martin Lavalliere
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History ,Polymers and Plastics ,Business and International Management ,Industrial and Manufacturing Engineering - Published
- 2022
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37. Prevalence of shoulder pain after stroke and associated factors
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M.J. Hadianfar, L. Bikdeli, A.R.Moghtaderi, and Sh. Mirshams
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Shoulder Pain ,Spasticity ,Stroke ,Medicine ,Medicine (General) ,R5-920 - Abstract
AbstractBackground and Purpose: Shoulder pain is a common complication from stroke that may cause some rehabilitation limits to achieve functional goals. The information regarding its prevalence and associated factors is limited. This study was conducted to investigate further details pertaining to its associated factors.Materials and Methods: This study was performed on 191 stroke patients at the Physical Medicine and Rehabilitation Ward at Shiraz-Medical School from 2001 to 2004. Each patient was followed up for one year. A questionnaire was prepared containing information about shoulder pain compliant, thorough history and physical examination, previous history of open heart surgery, scoliosis, limited neck range of motion, type of stroke (based on MRI and brain CT), osteoporosis (based on bone mineral density and X ray), shoulder adductor muscles and biceps spasticity (based on ashworth scale). In follow-up visits bi-monthly for one year, the questionnaire was filled out again and if present, shoulder pain was recorded.Results: Most patients developed shoulder pain between 2 and 6 months following their stroke. Forty-nine patients (32.2%) developed shoulder pain, 39(79.6%) of whom had spastic tone and 8 (16.3%) had flaccid tone. In both groups, with shoulder pain and without shoulder pain respectively, 6.7% and 1.9% had a history of open heart surgery, 6.1% and 1% had scoliosis, 67.3% and 35.1% had Intracranial hemorrhage, 73.5% and 23.3% had limited neck range of motion, and 24.5% and 35% had osteopenia.Conclusion: Spasticity was significantly more common in the shoulder pain group, which can be due to capsulitis, soft tissue inflammation (especially ligament and rotator cuff muscle) and anteroinferior subluxation of the shoulder. There was a significant statistical correlation between intracranial hemorrhage, reduced neck range of motion, and hemiplegic shoulder pain. It appears that treatment and rehabilitation of spasticity and underlying cervical area problems are helpful in preventing hemiplegic shoulder pain.J Mazand Univ Med Sci 2008; 18(65): 28-33(Persian)
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- 2008
38. Prognostic factors of acetaminophen exposure in the United States: An analysis of 39,000 patients
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Ali Hadianfar, Farhad Saeedi, Christopher Hoyte, Bruno Mégarbane, and Omid Mehrpour
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Adult ,medicine.medical_specialty ,business.industry ,Health, Toxicology and Mutagenesis ,medicine.medical_treatment ,Acute kidney injury ,Retrospective cohort study ,General Medicine ,Odds ratio ,Toxicology ,medicine.disease ,Prognosis ,United States ,Acetaminophen ,Lethargy ,Internal medicine ,medicine ,Coagulopathy ,Humans ,Hemodialysis ,business ,Fomepizole ,medicine.drug - Abstract
Acetaminophen is a frequently used over-the-counter or prescribed medication in the United States. Exposure to acetaminophen can lead to acute liver cytolysis, acute liver failure, acute kidney injury, encephalopathy, and coagulopathy. This retrospective cohort study (1/1/2012 to 12/31/2017) investigated the clinical outcomes of intentional and unintentional acetaminophen exposure using the National Poison Data System data. The frequency of outcomes, chronicity, gender, route of exposure, the reasons for exposure, and treatments as described. Binary logistic regression was used to estimate the prognostic factors and odds ratios (OR) with 95% confidence intervals (CI) for outcomes. This study included 39,022 patients with acetaminophen exposure. Our study demonstrated that the likelihood of developing severe outcomes increased by aging (OR = 1.12, 95% CI: 1.08–1.015) and was lower in females (OR = 0.88, 95% CI: 0.78–0.99). Drowsiness/lethargy (OR = 1.48, 95% CI: 1.22–1.82), agitation (OR = 1.66, 95% CI: 1.11–2.50), coma (OR = 23.95, 95% CI: 17.05–33.64), bradycardia (OR = 2.29, 95% CI: 1.22–4.32), rhabdomyolysis (OR = 8.84, 95% CI: 3.71–21.03), hypothermia (OR = 4.1, 95% CI: 1.77–9.51), and hyperthermia 2.10 (OR = 2.10, 95% CI: 1.04–4.22) were likely associated with major outcomes or death. Treatments included intravenous N-acetylcysteine (61%), oral N-acetylcysteine (10%), vasopressor (1%), hemodialysis (0.7%), fomepizole (0.1%), hemoperfusion (0.03%), and liver transplant (0.1%). In conclusion, it is important to consider clinical presentations of patients with acetaminophen toxicity that result in major outcomes and mortality to treat them effectively.
- Published
- 2021
39. Impact of Covid-19 Restrictions and Fuel Price on Traffic Volume and Offenses in Iran: A Spatiotemporal Analysis
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Delavary, Milad, primary, Kalantari, Amir Hossein, additional, Farsangi, Hossein, additional, Moghadam, Abolfazl Mohammadzadeh, additional, Hadianfar, Ali, additional, Vanlaar, Ward, additional, and Lavalliere, Martin, additional
- Published
- 2022
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40. Toxic alcohol poisoning characteristics and treatments from 2000 to 2017 at a United States regional poison center
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Jonathan Schimmel, Ali Hadianfar, Shireen Banerji, Samaneh Nakhaee, Omid Mehrpour, and Christopher Hoyte
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Adult ,Male ,medicine.medical_specialty ,Ethylene Glycol ,Poison Control Centers ,Adolescent ,Antidotes ,Alcohol ,chemistry.chemical_compound ,symbols.namesake ,Young Adult ,Internal medicine ,Epidemiology ,Medicine ,Ingestion ,Humans ,Poisson regression ,Mortality ,Fomepizole ,Retrospective Studies ,business.industry ,Mortality rate ,Incidence (epidemiology) ,Incidence ,Age Factors ,Retrospective cohort study ,Building and Construction ,Middle Aged ,United States ,chemistry ,symbols ,Regression Analysis ,Female ,business ,Alcoholic Intoxication ,medicine.drug ,Research Article - Abstract
BACKGROUND: Toxic alcohol exposures are an ongoing concern in the United States. In the US, few studies characterize the local epidemiology of toxic alcohols over time. OBJECTIVES: The objective was to examine the incidence of toxic alcohol ingestions and changes in management over time. METHODS: This retrospective cohort study evaluates toxic alcohol ingestion phone calls to a regional poison center in the United States covering four states. Data were queried for this poison center from the National Poison Data System (NPDS) using generic codes for each toxic alcohol. Inclusion criteria were ingestion of toxic alcohol, age ≥ 13 years, from January 1, 2000 to Dec 31, 2017. Exclusion criteria were unrelated effects coded in the medical outcome, duplicate data, or incomplete demographic data. RESULTS: Of 926 subjects (adults and teenagers), 71.5% were male, and the mean age was 34.5 years. Toxic alcohol ingestion was more common in individuals younger than 40 years, with a significant relationship between age and intentional abuse or misuse (p = 0.001). There was also a significant relationship between age and reason for ingestion, with younger patients more likely to be suicidal (p
- Published
- 2021
41. Predictors of in-Hospital Mortality Among Suspected Stroke Patients, Mashhad, Iran: An Application of Autologistic Regression Model
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Ali Hadianfar, Mohammad Taghi Shakeri, Isa Nazar, Zahra jafari, Azadeh Saki, Razieh Yousefi, and Payam Sasannezhad
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medicine.medical_specialty ,Autologistic regression ,In hospital mortality ,business.industry ,Emergency medicine ,medicine ,Suspected stroke ,business - Abstract
Background: Stroke is the second leading cause of death in adults worldwide. There are remarkable geographical variations in the accessibility to emergency medical services (EMS), and transport delays have been documented worldwide to affect stroke outcomes significantly. Therefore, this study examines whether there are spatial variations in in-hospital mortality among suspected stroke patients transferred by EMS and attempts to determine its related factors using the auto logistic regression model.Methods: In this historical cohort study, suspected stroke patients transferred to Ghaem Hospital of Mashhad by the EMS from March 2018 and March 2019 were included. Using emergency mission IDs, the baseline EMS data were integrated with the follow-up hospital records. The autologistic regression model was applied to examine the possible geographical variations in in-hospital mortality and its related factors. All analysis was carried out by SPSS version 16 and R 4.0.0 at the significant level of 0.05. Results: 1,222 suspected stroke patients were included in this study, and the in-hospital mortality rate was 14.2%. Overall in-hospital stroke mortality was related to age, accessibility rate of an ambulance, screening time, and length of stay (pConclusion: Our results showed considerable geographical variations in in-hospital stroke mortality in Mashhad neighborhoods. Also, age- and sex-adjusted results from this study highlight the direct association between accessibility rate of an ambulance, screening time and length of stay, and in-hospital stroke mortality. The prognosis of in-hospital stroke mortality could be improved by reducing delay time and increasing the EMS access rate.
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- 2021
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42. Prognostic factors of acetaminophen exposure in the United States: An analysis of 39,000 patients
- Author
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Mehrpour, Omid, primary, Saeedi, Farhad, additional, Hadianfar, Ali, additional, Mégarbane, Bruno, additional, and Hoyte, Christopher, additional
- Published
- 2021
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43. Prevalence of Food Insecurity and Its Association with Maternal and Child Anthropometric Indices and Socioeconomic Status and Dietary Intake in low-income Households in Golshahr District, Mashhad in 2014.
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AhmadiHosseini, Asieh, Hadianfar, Ali, Omidvar, Nasrin, Ranjbar, Golnaz, ZadeAbasi, Asma, Safarian, Mohammad, and Nematy, Mohsen
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FOOD security , *DISEASE prevalence , *SOCIOECONOMIC status , *POOR communities , *HOUSEHOLDS - Abstract
Introduction: The relation between the anthropometric status of household members and food insecurity is complicated and not clearly defined. The current study aimed to examine the prevalence of food insecurity (FI) and its association with maternal and child anthropometric indices and dietary intake in a low-income district located in the northeast of Iran. Methods: This cross-sectional survey was conducted on 400 representative households. The participants were mothers of children aged ≤6 years. Food security with 18-item USDA questionnaire, anthropometric status of mothers and children was measured by measuring weight and height dietary intake with food frequency questionnaire. Results: Fifty-eight percent of households were food insecure. No correlation was denoted between food insecurity and anthropometric indices, except for maternal height (P=0.02). After adjustment for the other variables, food insecurity was inversely correlated with maternal age (OR: 1.12; 95% CI: 1.06- 1.19), maternal education level (OR: 8.41; 95% CI: 1.89-37.46), the employment status of the spouse OR: 4.28; 95% CI: 2.02-9.05), socioeconomic status (OR: 12.86; 95% CI: 4.84-34.16), and the number of children aged ≤6 years (OR: 2.83; 95% CI: 1.16-6.80). The mean carbohydrate, fat, energy and folic acid consumption were observed to be lower in the food insecure mothers (P<0.05), while the mean intake of fruits was higher in the food-secure mothers (P<0.001). Conclusion: Women in households with a low socioeconomic status were at an elevated risk of food insecurity and micronutrient deficiencies. [ABSTRACT FROM AUTHOR]
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- 2023
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44. Comparison of Thyroid Function in Lead-Poisoned Patients and Healthy Individuals in Eastern Iran
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Samaneh, Nakhaee, Maryam, Rezayee, Borhan, Mansouri, Ali, Hadianfar, Alireza Amirabadi, Zadeh, Mahmoud, Zardast, Malihe Parsa, Sefat, and Omid, Mehrpour
- Subjects
Lead Poisoning ,Male ,Thyroxine ,Lead ,Thyroid Gland ,Humans ,Thyrotropin ,Triiodothyronine ,Female ,Iran - Abstract
Lead (Pb) is a prevalent environmental toxic metal that may harmfully affect the function of the thyroid gland. Our information about the effects of lead on thyroid function in lead poisoning is limited. The present study aimed to evaluate thyroid function in lead-poisoned patients compared with the healthy group. In this study, two groups of lead poisoning subjects (lead concentrations ≥ 25 μg/dL) (n = 56) (HBLC group) and randomly selected age and gender-matched healthy individuals with lower blood lead concentrations (BLC 10 μg/dL) (n = 58) (LBLC group) were included. Thyroid function tests, including thyroxine (T4), triiodothyronine (T3), and thyroid-stimulating hormone (TSH) concentration, were measured for each patient in both groups (for the HBLC group, it was taken on admission). The linear regression model was used to investigate the effects of lead poisoning on thyroid function tests. A p-value of less than 0.05 was considered significant. Our study showed no significant difference between the two groups in terms of age and gender. The mean concentration of T3 and TSH in the HBLC group was significantly lower than the LBLC group, but the mean levels of T4 were significantly higher in the HBLC group (p 0.05). Based on the linear regression model results, the T3 and TSH levels in the LBLC group were significantly higher by 13.86 and 0.43 units than the HBLC group, respectively. The current study results showed that lead poisoning affects thyroid function, reduces TSH, and increases T4.
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- 2021
45. Toxic alcohol poisoning characteristics and treatments from 2000 to 2017 at a United States regional poison center
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Hoyte, Christopher, primary, Schimmel, Jonathan, additional, Hadianfar, Ali, additional, Banerji, Shireen, additional, Nakhaee, Samaneh, additional, and Mehrpour, Omid, additional
- Published
- 2021
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46. Comparison of Thyroid Function in Lead-Poisoned Patients and Healthy Individuals in Eastern Iran
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Nakhaee, Samaneh, primary, Rezayee, Maryam, additional, Mansouri, Borhan, additional, Hadianfar, Ali, additional, zadeh, Alireza Amirabadi, additional, Zardast, Mahmoud, additional, Sefat, Malihe Parsa, additional, and Mehrpour, Omid, additional
- Published
- 2021
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47. Predictors of in-Hospital Mortality Among Suspected Stroke Patients, Mashhad, Iran: An Application of Autologistic Regression Model
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Hadianfar, Ali, primary, Sasannezhad, Payam, additional, nazar, Eisa, additional, Saki, Azadeh, additional, Yousefi, Razieh, additional, Shakeri, Mohammad Taghi, additional, and jafari, Zahra, additional
- Published
- 2021
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48. Effects of government policies and the Nowruz holidays on confirmed COVID-19 cases in Iran: An intervention time series analysis
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Hadianfar, Ali, primary, Yousefi, Razieh, additional, Delavary, Milad, additional, Fakoor, Vahid, additional, Shakeri, Mohammad Taghi, additional, and Lavallière, Martin, additional
- Published
- 2021
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49. Evaluation of Dorema Ammoniacum and Acupuncture's Therapeutic Effects in Patients With Ischemic Stroke: A Randomized Controlled Clinical Trial
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Mahsa Mehrpour, Mahdi Yousefi, Monavar AfzalAghaee, Hasan Rakhshandeh, Hoda Azizi, Ali Hadianfar, Omid Mehrpour, Kavian Ghandehari, and Hamidreza Bahrami-Taghanaki
- Abstract
Aim: Stroke is the third prevalent cause of disability worldwide. This study aimed to evaluate the role of Dorema ammoniacum and acupuncture in the management of patients with stroke.Methods: In this randomized controlled clinical trial, patients with a recent ischemic stroke (within the first month of stroke) were investigated. The patients were divided into three groups. The first group was managed by acupuncture, while the second group received 1 g of Dorema ammoniacum (two 500 mg capsules per day) from ammoniacum gum. The two intervention groups also received standard treatment with routine medical therapy and physiotherapy. The final group was the control, which only received conventional treatment and physiotherapy. The patients were evaluated immediately before the interventions, and one month after the interventions, using the Modified Rankin Scale (mRS) and Modified National Institutes of Health Stroke Scale (mNIHSS).Results: There was a significant difference in the mean score of mNIHSS at the beginning and end of the study in all of the three studied groups (PDorema ammoniacum and control groups (PDorema ammoniacum groups (PDorema ammoniacum groups were 1.82 and 1.04 lower than the control group's mean score, respectively. There was a significant difference in the mean mRS score at the beginning and end of the study in all three groups (PConclusion: Acupuncture and Dorema ammoniacum may be beneficial if started within the first month of stroke incidence. However, acupuncture can cause a greater reduction in the mNIHSS score of stroke patients. Trial registration: Iranian Registry of Clinical Trials (IRCT20170227032797N2).Registered 5 March 2018 - Retrospectively registered, https://www.irct.ir/trial/25469
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- 2020
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50. Effects of government policies and the Nowruz holidays on confirmed COVID-19 cases in Iran: An intervention time series analysis
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Hadianfar, Ali, Yousefi, Razieh, Delavary, Milad, Fakoor, Vahid, Shakeri, Mohammad T., Lavallière, Martin, Hadianfar, Ali, Yousefi, Razieh, Delavary, Milad, Fakoor, Vahid, Shakeri, Mohammad T., and Lavallière, Martin
- Abstract
Background : Public health policies with varying degrees of restriction have been imposed around the world to prevent the spread of coronavirus disease 2019 (COVID-19). In this study, we aimed to evaluate the effects of the implementation of government policies and the Nowruz holidays on the containment of the COVID-19 pandemic in Iran, using an intervention time series analysis. Methods : Daily data on COVID-19 cases registered between February 19 and May 2, 2020 were collected from the World Health Organization (WHO)’s website. Using an intervention time series modeling, the effect of two government policies on the number of confirmed cases were evaluated, namely the closing of schools and universities, and the implementation of social distancing measures. Furthermore, the effect of the Nowruz holidays as a non-intervention factor for the spread of COVID-19 was also analyzed. Results : The results showed that, after the implementation of the first intervention, i.e., the closing of universities and schools, no statistically significant change was found in the number of new confirmed cases. The Nowruz holidays was followed by a significant increase in new cases (1,872.20; 95% CI, 1,257.60 to 2,476.79; p<0.001)), while the implementation of social distancing measures was followed by a significant decrease in such cases (2,182.80; 95% CI, 1,556.56 to 2,809.04; p<0.001). Conclusion : The Nowruz holidays and the implementation of social distancing measures in Iran were related to a significant increase and decrease in COVID-19 cases, respectively. These results highlight the necessity of measuring the effect of health and social interventions for their future implementations.
- Published
- 2021
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