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Optimal growth and development in childhood and adolescence is crucial for lifelong health and well-being1–6. Here we used data from 2,325 population-based studies, with measurements of height and weight from 71 million participants, to report the height and body-mass index (BMI) of children and adolescents aged 5–19 years on the basis of rural and urban place of residence in 200 countries and territories from 1990 to 2020. In 1990, children and adolescents residing in cities were taller than their rural counterparts in all but a few high-income countries. By 2020, the urban height advantage became smaller in most countries, and in many high-income western countries it reversed into a small urban-based disadvantage. The exception was for boys in most countries in sub-Saharan Africa and in some countries in Oceania, south Asia and the region of central Asia, Middle East and north Africa. In these countries, successive cohorts of boys from rural places either did not gain height or possibly became shorter, and hence fell further behind their urban peers. The difference between the age-standardized mean BMI of children in urban and rural areas was

Smoking among adolescents in schools is a major global public health concern. There is limited evidence regarding prevalence and associated factors in Vietnam.To compare the prevalence of smoking and associated factors among in-school adolescents aged 13-17 years in Vietnam between 2013 and 2019.Data were collected from two rounds of the national representative Vietnam Global School-based Student Health Survey (GSHS) conducted in 2013 (n = 3,331) and 2019 (n = 7,690). Logistic regression was used to identify the factors associated with tobacco and electronic cigarette smoking among in-school adolescents.There was a significant reduction in the prevalence of current smoking (water pipes and cigarettes) from 5.4% (95% CI: 4.0-7.2) in 2013 to 2.8% (95% CI: 2.2-3.6) in 2019. In 2019, 2.6% of the in-school adolescents reported having used electronic cigarette products 30 days prior to the survey. Factors associated with a significantly higher likelihood of current smoking status included gender, loneliness, suicidal ideation, sexual activity, truancy, and alcohol consumption. Similar patterns were observed for e-cigarettes.Smoking among in-school adolescents in Vietnam decreased between 2013 and 2019. Follow-up studies are needed to further investigate causal factors so that future policies and communication programmes can be more effectively targeted to reduce smoking in adolescents.

Purpose This paper aims to analyze the current responses applied in Vietnam to the Coronavirus disease (COVID-19) pandemic and link these measures to priority actions highlighted in the Sendai Framework for Disaster Risk Reduction (SFDRR). From there, strengths, limitations and recommendations on applying the SFDRR to build the pandemic resilience in the future are discussed. Design/methodology/approach The authors synthesize literature on response measures to the COVID-19 pandemic in Vietnam from January to June 2020 and compare to four priority actions of the SFDRR including understanding risk, strengthening governance, investing in risk reduction for resilience and enhancing preparedness for effective response and resilient recovery. Findings Vietnam has effectively controlled the pandemic with 401 infected cases and no death so far. Well preparation, timely policies’ implementation, risk communication and comprehensive approaches are key strategies. These measures are same as the four priority actions in the SFDRR. Originality/value To the best of the authors’ knowledge, this is the first study in Vietnam to link the COVID-19 response and the SFDRR, which can serve as an important example for other countries in responding to the pandemic. Some measures have surpassed SFDRR’s guidance, especially preventive responses applied nationwide with strong political will and the community’s commitment accompanied by sanctions. Cultural factors such as the habit of using masks to prevent air pollution have contributed to the good observance of wearing mask regulations during the pandemic. However, some areas that need more attention include specific solutions for vulnerable groups, limiting fake news and ensuring patient privacy.

This study investigates the prevalence of tobacco and alcohol uses and associated factors among 12 ethnic minorities in Vietnam in 2019. A cross-sectional survey was conducted among 5172 people aged ≥15 years. The prevalence of smoking and drinking was 19.7% and 29.9%, respectively, and significantly higher among men than women. These numbers were heterogeneous across ethnic minorities. Smoking prevalence was high among Ba Na (25.9%), Cham An Giang (22.3%), Khmer (23.5%), La Hu (26.3%), Ta Oi (30.7%), and Bru Van Kieu (29.6%) ethnicities whereas that of Gie Trieng and Mnong ethnicities was low (3.7% and 9.5%, respectively). Drinking prevalence ranged from 1.4% in Cham An Giang ethnicity to 68.6% in Ba Na ethnicity. A wide ethnic disparity on tobacco and alcohol use could be explained by the ethnic variation of lifestyles, social norms, and cultural features. Our findings suggest the need to develop ethnic-specific interventions to mitigate the smoking and drinking prevalence.

Vietnam is facing a shortage of skilled Environmental health workforce. A Training Needs Assessment was conducted to develop a list of environmental health tasks, a list of core competencies and assess the need for a Master of Environmental Health training program in Vietnam. To answer these questions, a cross-sectional study was conducted in Vietnam in 2017, using both qualitative and quantitative methods. The qualitative study involved a desk review, 29 in-depth interviews, two consultative workshops, and two expert meetings. For the quantitative component, 298 environmental health staff working at different levels completed a structured postal questionnaire. Results showed that different sectors were implementing various environmental health tasks but that there was currently no training program focusing on environmental health in Vietnam. Thirteen core competencies for a Master of Environmental Health were recommended. An urgent need to develop training programs to help building environmental health competencies at the Masters degree level was uniformly expressed. This could be achieved by developing a Master of Public Health with an Environmental Health stream in the short-term and a Master of Environmental Health program in the long-term.

This study investigated the associations between heatwaves and daily hospital admissions for cardiovascular and respiratory diseases in two provinces in Viet Nam known to be vulnerable to droughts during 2010–2018. This study applied a time series analysis with data extracted from the electronic database of provincial hospitals and meteorological stations from the corresponding province. To eliminate over-dispersion, this time series analysis used Quasi-Poisson regression. The models were controlled for the day of the week, holiday, time trend, and relative humidity. Heatwaves were defined as the maximum temperature exceeding P90th over the period from 2010 to 2018 during at least three consecutive days. Data from 31,191 hospital admissions for respiratory diseases and 29,056 hospitalizations for cardiovascular diseases were investigated in the two provinces. Associations between hospital admissions for respiratory diseases and heatwaves in Ninh Thuan were observed at lag 2, with excess risk (ER = 8.31%, 95% confidence interval: 0.64–16.55%). However, heatwaves were negatively associated with cardiovascular diseases in Ca Mau, which was determined amongst the elderly (age above 60), ER = −7.28%, 95%CI: −13.97–−0.08%. Heatwaves can be a risk factor for hospital admission due to respiratory diseases in Vietnam. Further studies need to be conducted to assert the link between heat waves and cardiovascular diseases.

BackgroundAdolescence is a vulnerable period for many lifestyle risk behaviors. In this study, we investigated the clustering of risk behaviors and role of the school health promotion programs among adolescents in Vietnam. MethodsWe analyzed data of 7,541 adolescents aged 13-17y from the 2019 nationally representative Global School-based Student Health Survey, conducted in 20 provinces and cities in Vietnam. We applied the latent class analysis to identify groups of clustering and used Bayesian 2-level logistic regressions to evaluate the effects of school health promotion programs on these clusters. We reassessed the school effect size by incorporating different informative priors to the Bayesian models. FindingsThe most frequent lifestyle risk behavior among Vietnamese adolescents was unhealthy diet ([~]67%), followed by sedentary behavior (37% in boys and 48% in girls) and low fruit/vegetable intake ([~]31%). More than half of students had a cluster of at least two risk factors and a quarter with three risk factors. Latent class analysis detected 18% boys and 15% girls being at high-risk of lifestyle behaviors. Consistent through different priors, high quality of health promotion programs associated with lower the odds of lifestyle risk behaviors (highest quality schools vs. lowest quality schools; boys: Odds ratio (OR) = 0{middle dot}69, 95% Highest Density Interval (HDI): 0{middle dot}49 - 0{middle dot}99; girls: OR = 0{middle dot}62, 95% HDI: 0{middle dot}42 - 0{middle dot}92). InterpretationOur findings demonstrated the clustering of specific lifestyle risk behaviors among Vietnamese adolescents, suggesting a special need for required courses in schools and join interventions that target sex-specific multiple risk behaviors. FundingThe 2019 Global School-based Student Health Survey was conducted with financial support from the World Health Organization. The authors received no funding for the data analysis, data interpretation, manuscript writing, authorship, and/or publication of this article. Research in contextO_ST_ABSEvidence before this studyC_ST_ABSAdolescence is a vulnerable period for many lifestyle risk behaviors which normally cluster and interact to exponentially elevate the risks of non-communicable diseases (NCDs). The school might play an essential role in preventing risk behaviors and motivating healthy lifestyle behaviors for in-school adolescents. We searched on PubMed and Google Scholar to identify peer-reviewed articles published in English between Jan 1, 2000 and November 25, 2020; using keywords ("health behaviors" OR "lifestyle risk behaviors "OR "health risk behaviors" OR "tobacco" OR smok* OR "alcohol" OR "physical activity" OR "physical inactivity" OR "fruit intake" OR "vegetable intake" OR "diet") AND (cluster* OR "co-occurrence") AND ("adolescent" OR "teenager" OR "youth" OR "student"). We complemented the searching database with a manual search on reference lists. We identified 39 studies that evaluated the clustering of risk behaviors among adolescents (Supplemental materials S1). Two-thirds of the studies were conducted in high-income countries. The evidence from low- and middle-income countries is currently limited in some countries; however, most of these studies used descriptive techniques to analyze the co-occurring behaviors, i.e., treating the effects of risk behaviors equally or computing the observed prevalence-to-expected prevalence ratio, which hardly evaluates the underlying association among these co-occurrences. Furthermore, no studies have focused on the role of school health promotion programs in preventing the high-risk cluster of these behaviors. Added value of this studyOur study is a pioneer in using analytical technique to investigate the clustering pattern of six major lifestyle risk behaviors of NCDs (smoking, drinking, physical inactivity, sedentary behavior, low fruit/vegetable intake, and unhealthy diet) among school-going adolescents in Vietnam. We found more than half of adolescents had a cluster of at least two factors and a quarter had three factors, with the common clusters being unhealthy diet, sedentary behaviors, low fruit/vegetable intake (in girls), and drinking (in boys). Using latent class analysis, we identified 18{middle dot}1% of boys and 14{middle dot}7% of girls were at high-risk pattern of lifestyle behaviors. Consistent across scenarios, Bayesian multilevel models showed that the quality of school health promotion programs was associated with minimizing the high-risk cluster of lifestyle behaviors. Implications of all available evidenceOur findings highlight the need for required courses in school with high-quality content for essential joint knowledge and skills to prevent multiple lifestyle risk behaviors. This becomes urgent as the current curriculum is not required in Vietnam, therefore, although the high prevalence of students completed a module for preventing an individual risk behavior; a limited number of them achieved three such modules. We also emphasize separated intervention for boys and girls since the patterns of lifestyle risk behaviors combination are different by sexes.

The concentrations and temporal variations of polychlorodibenzo-p-dioxins and polychlorodibenzofurans (PCDDs/PCDFs) in ambient air between March 2013 and February 2017 were investigated by passive air samplers containing polyurethane foam (PUF) disks in the dioxin remediation area using in-pile thermal desorption (IPTD) technology at Da Nang airport, Vietnam. The PCDD/PCDF concentrations in ambient air at each site depended on the location of the emission sources and the wind direction, the dioxin contamination level of excavated materials, the periods of excavation and transport, and the operation of the IPTD treatment system. The PCDD/PCDF concentrations were the highest in the former Agent Orange mixing and loading area (AOMLA), which was the closest to the IPTD system, with total toxic equivalent (TEQ) values ranging from 0.437 to 15.3 pg/PUF/day. The total TEQ concentrations in the Sen Lake area ranged from 0.138 to 2.41 pg/PUF/day. The lowest concentration of PCDDs/PCDFs occurred in the northern perimeter area, with total TEQ values ranging from 0.164 to 0.972 pg/PUF/day. The decreasing trend of the PCDD/PCDF concentrations in ambient air was confirmed over time at all three monitoring sites, among which there was a strong decrease in the former AOMLA after February 2015. Residents living near the Da Nang airport were at a low risk of being exposed to PCDDs/PCDFs through inhalation during remediation project implementation, while residents living close to the former AOMLA faced elevated risks with an average daily dose of PCDDs/PCDFs through inhalation ranging from 0.017 to 0.82 pg TEQ/kg body weight/day.

Youth suicide is a leading cause of death among adolescents, but evidence about the influences of parental involvement on adolescent suicidal behaviors is inconsistent and have not been well studied. We used nationally representative data from the Vietnam Global School-based Student Health Survey (GSHS) 2019 (n = 7796 students aged 13–18 years). Using the 2-level random intercept logistic regressions, we evaluated the relationship between parental involvement (high expectation, monitoring, and understanding) and suicidal ideation and identified related factors of suicidal ideation. The overall prevalence of suicidal ideation was 15.6%. While high level of parental monitoring and understanding were associated with lower odds of suicidal ideation among adolescents (OR: 0.63; 95% CI: 0.52–0.77 and OR: 0.60; 95% CI: 0.49–0.73, respectively), high parental expectation was linked to higher odds of suicidal ideation (OR: 1.42; 95% CI: 1.24–1.63). Other risk factors at the individual- and school-level for suicidal ideation included being girls, living in urban areas, having mental health problems, involving in risk behaviors, suffering from bullying and violence, and poor school quality. Targeted suicide prevention initiatives should take into account comprehensive aspects of parent-child bonding, student, and school factors to mitigate the burden of suicidal behaviors among adolescents.

Background: Adolescence is a vulnerable period for many lifestyle risk behaviors. In this study, we investigated the clustering of risk behaviors and role of the school health promotion programs among adolescents in Vietnam. Methods: We analyzed data of 7,541 adolescents aged 13–17y from the 2019 nationally representative Global School-based Student Health Survey, conducted in 20 provinces and cities in Vietnam. We applied the latent class analysis to identify groups of clustering and used Bayesian 2-level logistic regressions to evaluate the effects of school health promotion programs on these clusters. We reassessed the school effect size by incorporating different informative priors to the Bayesian models. Findings: The most frequent lifestyle risk behavior among Vietnamese adolescents was unhealthy diet (~67%), followed by sedentary behavior (37% in boys and 48% in girls) and low fruit/vegetable intake (~31%). More than half of students had a cluster of at least two risk factors and a quarter with three risk factors. Latent class analysis detected 18% boys and 15% girls being at high-risk of lifestyle behaviors. Consistent through different priors, high quality of health promotion programs associated with lower the odds of lifestyle risk behaviors (highest quality schools vs. lowest quality schools; boys: Odds ratio (OR) = 0·69, 95% Highest Density Interval (HDI): 0·49 – 0·99; girls: OR = 0·62, 95% HDI: 0·42 – 0·92). Interpretation: Our findings demonstrated the clustering of specific lifestyle risk behaviors among Vietnamese adolescents, suggesting a special need for required courses in schools and join interventions that target sex-specific multiple risk behaviors. Funding Information: The 2019 Global School-based Student Health Survey was conducted with financial support from the World Health Organization. The authors received no funding for the data analysis, data interpretation, manuscript writing, authorship, and/or publication of this article. Declaration of Interests: The authors declare that they have no conflict of interest. Ethics Approval Statement: Written informed consent was obtained from all participants’ parents/guardians before the study. All procedures performed in this study followed the ethical standards of the Institution Review Board of Hanoi University of Public Health (IRB decision No. 421/2019/YTCC-HD3, dated: 06/08/2019).

This study aimed to describe knowledge, attitudes, and practices (KAP) in controlling COVID-19 and some related factors among the Vietnamese population in 2020. A cross-sectional study was conducted involving 1999 participants aged 18–59 years old, through an online questionnaire. The results showed that 92.2% of the participants had a high knowledge level regarding COVID-19 prevention measures, 68.6% had a positive attitude toward COVID-19 prevention measures, and 75.8% practiced all six measures for preventing the spread of the virus. Age, sex, marital status, knowledge, and fear were significantly associated with the practices aimed at COVID-19 prevention. Married people and participants with high levels of knowledge were more likely to practice all preventive measures. In contrast, young people, men, and those who fear COVID-19 were less likely to practice all preventative measures. Good KAP among Vietnamese people could be an important factor in helping authorities gain initial success in containing the coronavirus and COVID-19. In addition to continuously raising and maintaining the community's awareness, attitude, and practices in disease prevention, the introduction and strict implementation of sanctions and regulations were also important in ensuring good practices were implemented and sustained over time. Groups with lower KAP levels should be provided with more information and support to promote appropriate disease prevention practices.

The aim of this study was to report the prevalence of self-reported non-communicable diseases among ethnic minority populations in Vietnam and related factors. A total of 5033 individuals aged 15 years and older who belonged to ethnic minority populations from 12 provinces in Vietnam completed a household survey. The overall prevalence of self-reported non-communicable diseases was 12.4% (95% CI: 11.5%–13.4%). Cardiovascular diseases were the most prevalent, followed by diabetes. Ethnicity was shown to have an independently significant correlation to having any non-communicable diseases. Older people, near-poor and non-poor people had significantly higher odds of having non-communicable diseases as compared to younger and poor people.

Background: Achieving access to clean water and basic sanitation remains as major challenges in Vietnam, especially for vulnerable groups such as minority people, despite all the progress made by the Millennium Development Goal number 7.C. Objectives: The study aimed to describe the access to improved water sources and sanitation of the ethnic minority people in Vietnam based on a national survey and to identify associated factors. Methods: A cross-sectional study was conducted in 2019 with a sample size of 1385 ethnic minority households in 12 provinces in Vietnam. Multivariate logistic regression modeling was performed to examine the probability of having access to improved water sources and sanitation and sociodemographic status at a significance level of P Results: The access to improved water sources and sanitation was unequal among the ethnic minority people in Vietnam, with the lowest access rate in the northern midland and mountainous and Central Highland areas and the highest access rate in the Mekong Delta region. Some sociodemographic variables that were likely to increase the ethnic minority people’s access to improved water sources and/or sanitation included older age, female household heads, household heads with high educational levels, religious households, and households in not poor status. Conclusion and recommendations: The study suggested more emphasis on religion for improving the ethnic minority’s access to improved water sources and sanitation. Besides, persons of poor and near-poor status and with low educational levels should be of focus in future water and sanitation intervention programs.

Background: Ice is used in large quantities as refreshment in alcoholic and nonalcoholic beverages, especially in summer time. Contamination of edible ice products with pathogens is a public health concern in various countries, including Vietnam. This study aimed to assess the food safety conditions, the quality of edible ice products and related factors at manufacturing premises in Binh Phuoc Province, Vietnam in 2019. Methods: A cross-sectional study was conducted in 2019 using both quantitative and qualitative methods. Food safety assessment was carried out in all 45 ice producing premises in the province and 79 ice samples were collected and analyzed microbiologically. In-depth interviews were conducted with 2 food safety management staff, 4 owners of premises, and 4 workers. Results: Only 22.4% (18/79) and 37.8% (30/79) of the premises met requirement for food safety conditions and microbiological food safety requirements, respectively. Half of the ice samples, 51.9% (41/79), were contaminated, 49.4% (39/79) with Escherichia coli and 12.7% (10/79) with total coliforms. Streptococci, Pseudomonas aeruginosa were not detected. The major risks were material, odds ratio (OR) = 4.2 (95% confidence interval [CI]: 1.002-17.6), structural challenges in the facilities, OR = 4.3 (95% CI: 1.13-16.7), broken floors or difficulty in cleaning, OR = 5.4 (95% CI: 1.26-22.9), and poor staff hygiene practices, OR = 19.5 (95% CI: 4.2-91.1). Workers lacked knowledge and appropriate practices to prevent microbial contamination of ice products. Conclusions: The food safety conditions and the quality of ice cubes at manufacturing premises in Binh Phuoc Province were not acceptable. Hygiene deficiencies in ice producing and handling processes, inadequate knowledge of staff, inadequate food safety management practices, and hygiene conditions of the premises were important factors in producing contaminated ice products. We recommend more staff training and crediting the staff when performing adequate practices, paying attention to broken floors or difficulty in cleaning, structural deficiency, and ensuring regular monitoring of premises. This study adds a special interest to ensure food safety conditions at ice producing premises to prevent microbial contamination of the products.

Antibiotic residues in chicken meat samples is a serious public health concern due to their harmful effects on consumers’ health. We conducted this research in 2017 to determine antibiotic residues in chicken meat samples and to describe the knowledge, attitude, and practice (KAP) of farmers on the antibiotic uses in poultry farms at Tay Ninh province. Farmers who raised chickens at their farmhouses were surveyed using a KAP survey questionnaire, and 106 chicken meat samples were analyzed for 29 kinds of antibiotic residues. The results showed that 27.4% samples were positive with 11 kinds of 4 antibiotic groups: fluoroquinolones, sulfonamides, tetracycline, and macrolides. A total of 50.9% farmers needed to improve their knowledge on the appropriate use of antibiotics. Although 54.7% famers had positive attitude, just 17% had good practices. It was recommended that the levels of antibiotic residues in chickens should be communicated to food safety and veterinary authorities, chicken farmers, and the general public. Enhancing the training and coaching for each group of farmers to improve their knowledge and practices on the appropriate use of antibiotics in raising chickens is needed. Local government should enhance the level of control and punishment for drug sellers and end users regarding the use of banned antibiotics in chickens.

Vietnam is located in Southeastern Asia, along with the Indochinese Peninsula. With a long coastline, diversified topography, and high percent of the population living in low-lying coastal regions, Vietnam is one of the most disaster-prone nations in the world. The country is frequently exposed to a wide range of recurring natural hazards such as tropical storms, floods, droughts, landslides, and forest fires. Typhoons and floods are the two most frequent and dangerous occurrences, causing numerous fatalities, economic loss and infrastructure damages as well as other short and long-term public health problems. With the rising in both frequency and intensity of natural disasters in the last decades under the impacts of climate change, the vulnerability of local communities has been more remarkable. Therefore, Vietnam has actively taken a number of measures to prevent, respond, and mitigate disasters’ consequences. There are both valuable experiences and challenges in national disaster reduction efforts. This chapter describes climate characteristics and common natural disasters of Vietnam; analyzes the vulnerability of communities in disasters; synthesizes and assesses policies related to natural disaster reduction; as well as discusses valuable experiences and existing problems in disaster adaptation strategies of Vietnam.

Water hygiene, sanitation, and proper management of health care wastes at health care facilities are important in preventing infections and improving health and the environment. This article describes the access to safe water and sanitation facilities and the disposal of medical wastes at commune health centers (CHCs) in Vietnam. Data was extracted from the 2015 World Bank Vietnam District and Commune Health Facility Survey. Bivariate and multivariate logistic regression was applied to identify associations of CHCs' access to improved water and sanitation and their medical waste management. Overall, 72.76% CHCs had access to both improved water and sanitation facilities, and better access was found in the richest communes. Rural CHCs had higher prevalence of appropriate wastewater treatment. The majority of CHCs combusted medical solid wastes by specialized incinerations, contracted out with sanitation companies, or transported them to district health centers. However, the data was insufficient to give in-depth analysis and conclusion on water and sanitation conditions and the management of medical wastes at CHCs. More information should be collected for further analysis and conclusion.

Dengue fever/dengue hemorrhagic fever (DF/DHF) has been an important public health challenge in Viet Nam and worldwide. This study was implemented in 2016-2017 using retrospective secondary data to explore associations between monthly DF/DHF cases and climate variables during 2008 to 2015. There were 48 175 DF/DHF cases reported, and the highest number of cases occurred in November. There were significant correlations between monthly DF/DHF cases with monthly mean of evaporation ( r = 0.236, P < .05), monthly relative humidity ( r = −0.358, P < .05), and monthly total hours of sunshine ( r = 0.389, P < .05). The results showed significant correlation in lag models but did not find direct correlations between monthly DF/DHF cases and monthly average rainfall and temperature. The study recommended that health staff in Hanoi should monitor DF/DHF cases at the beginning of epidemic period, starting from May, and apply timely prevention and intervention measures to avoid the spreading of the disease in the following months. A larger scale study for a longer period of time and adjusting for other potential influencing factors could better describe the correlations, modelling/projection, and developing an early warning system for the disease, which is important under the impacts of climate change and climate variability.

Climate-related disasters are increasing across the globe, but their adverse health impacts are unevenly distributed. The people most severely affected tend to be from socio-economically disadvantaged, vulnerable populations, who have high exposure to risk conditions and insufficient adaptive capacity. Despite the increasing health impacts of climate change and disaster risks felt in Asian countries such as China, Indonesia and Vietnam, there are few attempts to access and translate literature and evidence on climate-related disasters and adaptation activities from non-English speaking countries. Conducted by a multi-country project team, this review aims to better understand the current literature and to study gaps in these three countries through an extensive search of literature, in English, Chinese, Indonesian and Vietnamese. Through a systematic review process a total of 298 studies out of 10,139 were included in this study. Key findings confirm that all three countries have experienced increasing climate-related disasters with their associated health impacts, and that adaptation strategies are urgently needed to reduce the risk and vulnerability of the most affected populations. Future studies should consider conducting vulnerability assessments to inform translational research on developing effective adaptation strategies. Authors commented that a common challenge they found was the shortterm nature of disaster response mechanisms, and the lack of long-term investment and policy support for capacity building and multi-sectoral collaborative research that address the needs of populations vulnerable to climate-related disasters. Thus, to better prepare for future disasters, it is vital that governments and international agencies prioritize funding policies to fill this gap.

The Law on Tobacco Control and the Law on Advertisement prohibit the advertising of any tobacco product in Vietnam. Tobacco promotion and marketing are alsostrictly prohibited. However, the violation of tobacco adverting and promotion is still common in Vietnam.This article aims at describing the exposure to tobacco advertising and promotion among the population aged 15+ years in Vietnam based on the data from the Global Adult Tobacco Survey 2015 from the view of the community, identifying any possible associations between the exposure to tobacco advertising and promotion and other individual factors, and discussing its possible public health implications.A cross-sectional study with the nationwide scale. Secondary data from the Global Adult Tobacco Survey 2015 was explored and analyzed. Chi-square test and multivariate logistic regressions were applied in the data analysis.The most common type of adults' exposure to tobacco advertising and promotion was points of sale (8.6%); 9.8% adults exposure to one source of tobacco advertising and 4.0% of them exposed to one source of tobacco promotion. Around 13.3% of Vietnamese adults were exposed to tobacco advertisement, while 2.0% were exposed to tobacco promotion, 5.3% were exposed to both tobacco advertising and promotion, and 16.6% were exposed to tobacco advertising or promotion. Gender, educational level, age, occupation, marital status, socioeconomic status, location (urban, rural), and current smoking status were associated with the exposure to tobacco advertising, tobacco promotion, tobacco advertising and promotion, and tobacco advertising or promotion.Although there are comprehensive bans on tobacco advertising and promotion in Vietnam, adults aged 15+ years still reported their exposure to tobacco advertising and promotion. There should be a strict enforcement of the ban on tobacco advertising and promotion in Vietnam.

This study analyzed secondary data from Chi Linh Health and Demographic Surveillance System (CHILILAB) database to identify smoking prevalence and associated demographic factors. Data were extracted from the database of the CHILILAB 2016, which included information on individual smoking behaviors, as well as individual and household demographic data. Descriptive and binary logistic regression analyses were performed with significance level of 0.05. The smoking prevalences were 34.7%, 0.9%, and 16.1% for men, women, and both genders, respectively. A total of 78.2% of current smokers smoked daily inside their houses. Lower smoking status was associated with younger age, being student, rich, and/or single. Future efforts should not only spend on further reduction of smoking rate in Chi Linh Town but should also pay special attention on reducing the prevalence of in-home smoking. This will help to decrease the risk of nonsmokers being exposed to secondhand smoke in their home environment.

This study assesses the risk of exposure to hazardous chemical residues in pork meat, liver, and kidney collected at wet markets in Nghe An and Hung Yen provinces and discusses health impact implication. 514 pig feed, kidney, liver, and pork samples were pooled and qualitatively and quantitatively analyzed for tetracyclines, fluoroquinolones, sulphonamide, chloramphenicol, β-agonists, and heavy metals. We compare the results with current regulations on chemical residues and discuss health implications. Legal antibiotics were found in feed. Tetracycline and fluoroquinolones were not present in pork, but 11% samples were positive with sulfamethazine above maximum residue limits (MRL); 11% of packaged feed and 4% of pork pooled samples were positive for chloramphenicol, a banned substance; two feed, two liver, and one pork samples were positive for β-agonists but did not exceed current MRL; 28% of pooled samples had lead, but all were below MRL; and all samples were negative for cadmium and arsenic. Thus, the health risks due to chemical hazards in pork in Hung Yen and Nghe An seemed not as serious as what were recently communicated to the public on the mass media. There is potential exposure to sulphonamide, chloramphenicol, and β-agonists from pork. Risk communication needs to focus on banned chemicals, while informing the public about the minimal risks associated with heavy metals.

Comprehensive bans on tobacco advertising and promotion were introduced through tobacco control legislation in Viet Nam, but it has been established that violations of the bans are very common. This study was conducted to explore the trend in violations of bans on tobacco advertising and promotion at points of sale in Viet Nam in the past six years and to explore any differences in the violation situations before and after the Law on Tobacco Control came into effect on 1st May 2013. Quantitative data were collected through observation of violations of the bans on tobacco advertising and promotion at points of sale in 10 provinces throughout Viet Nam in four survey rounds (2009, 2010, 2011, and 2015). Variation in violation prevalence over time was examined by chi-square test using a Bonferini method. Binary logistic regression was employed to identify the factors that may have influences on different types of violation. A level of significance of p

Background: The Global Climate Risk Index 2020 ranked Vietnam as the sixth country in the world most affected by climate variability and extreme weather events over the period 1999-2018. Sea level rise and extreme weather events are projected to be more severe in coming decades, which, without additional action, will increase the number of people at risk of climate-sensitive diseases, challenging the health system. This article summaries the results of a health vulnerability and adaptation (V&A) assessment conducted in Vietnam as evidences for development of the National Climate Change Health Adaptation Plan to 2030. Methods: The assessment followed the first 4 steps outlined in the World Health Organization’s Guidelines in conducting “Vulnerability and Adaptation Assessments.” A framework and list of indicators were developed for semi-quantitative assessment for the period 2013 to 2017. Three sets of indicators were selected to assess the level of (1) exposure to climate change and extreme weather events, (2) health sensitivity, and (3) adaptation capacity. The indicators were rated and analyzed using a scoring system from 1 to 5. Results: The results showed that climate-sensitive diseases were common, including dengue fever, diarrheal, influenza, etc, with large burdens of disease that are projected to increase. From 2013 to 2017, the level of “exposure” to climate change–related hazards of the health sector was “high” to “very high,” with an average score from 3.5 to 4.4 (out of 5.0). For “health sensitivity,” the scores decreased from 3.8 in 2013 to 3.5 in 2017, making the overall rating as “high.” For “adaptive capacity,” the scores were from 4.0 to 4.1, which meant adaptive capacity was “very low.” The overall V&A rating in 2013 was “very high risk” (score 4.1) and “high risk” with scores of 3.8 in 2014 and 3.7 in 2015 to 2017. Conclusions: Adaptation actions of the health sector are urgently needed to reduce the vulnerability to climate change in coming decades. Eight adaptation solutions, among recommendations of V&A assessment, were adopted in the National Health Climate Change Adaptation Plan.

Objective: To describe the recovery time and related factors among COVID-19 patients in Vietnam. Methods: We used the secondary data obtained from the official database of the Ministry of Health of Vietnam and other public data sources that were available by April 9th, 2020. Cox proportional hazards model was carried out to identify factors related to recovery time among COVID-19 patients. Results: By April 9th, 2020, the cumulative number of COVID-19 cases detected in Vietnam was 255, of which 129 (50.6%) patients had fully recovered. The median recovery time of patients was 17 (95% CI=16-19) days. Older patients had a lower likelihood of recovery (HR=0.98, 95% CI=0.97-0.99, P

This article characterizes the health risk perceptions toward excreta and wastewater management practices among waste management stakeholders in Vietnam and explores the implications of such perceptions on hygiene behaviors and preventative actions. Key informant interviews (n = 19, 12 women and 7 men) were conducted with farmers, community leaders, researchers, and government representatives in Hanoi and Ha Nam Province. Interviews were audio-recorded with permission, transcribed, and analyzed using a constant comparative method and qualitative thematic analysis. Researchers and government representatives perceived that the lack of knowledge of safe waste management practices among farmers was responsible for the use of &ldquo, outdated&rdquo, and often &ldquo, unsafe&rdquo, waste management practices. However, many farmers were aware of the health risks and safe hygienic practices but felt that safety measures were impractical and viewed susceptibility to diseases as low risk. Farmers also identified unfavorable climate and working conditions, limited financial capacity, and limited farm space as barriers to adopting safe management practices. At the broader level, inadequate communication between ministries often led to the creation of inconsistent waste management regulations. These barriers create constraints on efforts to improve sustainable waste management practices. Promoting collaboration between sectors, encouraging farmer-to-farmer knowledge sharing, and designing and implementing risk communication strategies that account for risk perceptions of stakeholders are recommended.