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BACKGROUND Frailty is a health problem that is extremely prone to arise with aging and is more prevalent in socially isolated older adults. The dietary pattern often serves as an important determinant of health in later life that cannot be ignored. Identifying the role that a specific dietary pattern plays in social isolation and frailty can provide insights to improve the quality of life of older adults. OBJECTIVE This study aims to determine the relationship between social isolation and frailty and investigate whether a specific dietary pattern moderated this association among Chinese older adults. METHODS This cross-sectional study used data from the eighth wave of the Chinese Longitudinal Healthy Longevity Survey (CLHLS) conducted in 2018. A total of 8889 older adults (aged 60+) were included in our study. Frailty was assessed using FRAIL Scale. Social isolation was defined by marital status, living arrangement, frequent visit by family members, and social participation. Dietary patterns were explored by principal component analysis. The logistic regression was used to carry out the moderating effect analysis. RESULTS Four dietary patterns were identified, namely “vegetable-nut-mushroom or alga”, “egg-milk”, “meat-fish”, and “pickle”. Subjects with higher levels of social isolation were associated with a higher risk of frailty (OR=2.31, 95%CI=2.17-2.46). We observed that the egg-milk pattern as a moderator alleviated this relationship (OR=0.91, 95%CI=0.86-0.97). CONCLUSIONS Our study suggested that social isolation was positively correlated with frailty and the egg-milk pattern is a moderator in this relationship. Improving the social isolation of older people was beneficial to prevent frailty. It is necessary to advocate the dietary pattern characterized by eggs and milk in socially isolated older adults to reduce the risk of frailty.

Several studies have explored the relationship between mental health and life satisfaction. However, few studies have clarified the mechanisms underlying the relationship between mental health and life satisfaction among a large sample of the whole population. The aim of this study was to explore the mediating role of perceived social support between mental health and life satisfaction among the residents in Taian City, China. A total of 8500 residents were included in the analysis. A descriptive analysis was conducted to describe the sample characteristics. Pearson correlation was employed to explore the correlation between mental health and life satisfaction. The mediating role of perceived social support was analyzed using SPSS26.0. This study found that the residents’ average score of life satisfaction was 24.60 ± 4.12. Mental health was significantly correlated with perceived social support and life satisfaction. After adjusting for controlling variables, perceived social support played a partially mediating effect on mental health and life satisfaction, accounting for 21.04% of the total effect. However, data are cross-sectional, and causal conclusions cannot be drawn. Attention should be paid to the residents’ mental health and intervention should be considered for residents with mental disorders to improve the residents’ life satisfaction.

Wantong Han,1– 3 Lingzhong Xu,1– 3 Aimin Niu,4 Yurong Jing,1– 3 Wenzhe Qin,1– 3 Jiao Zhang,1– 3 Xiang Jing,5 Yali Wang6 1Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People’s Republic of China; 2NHC Key Laboratory of Health Economics and Policy Research, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People’s Republic of China; 3Center for Health Economics Experiment and Public Policy Research, Cheeloo College of Medicine, Shandong University, Jinan, People’s Republic of China; 4Department of Public Health, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People’s Republic of China; 5Yuncheng Central Hospital, Yuncheng, Shanxi, People’s Republic of China; 6Henan Provincial Center for Disease Control and Prevention, Zhengzhou, Henan, People’s Republic of ChinaCorrespondence: Lingzhong XuSchool of Public Health, Cheeloo College of Medicine, Shandong University, Mailbox No. 110, 44 Wenhuaxi Road, Jinan, 250012, Shandong, People’s Republic of ChinaTel +86-0531-8838-2648Fax +86-0531-88382533Email lzxu@sdu.edu.cnAimin NiuDepartment of Public Health, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 324 Jingwu Road, Huaiyin District, Jinan, 250021, People’s Republic of ChinaTel +86-1866-370-2722Fax +86-0531-87921022Email nam1106@163.comPurpose: Studies have suggested that public health emergencies can have many psychological effects on college students, therefore, the aim of this study is to investigate current situation of college students’ anxiety and its determinants in the time of an unexpected pandemic.Patients and Methods: We conducted convenience sampling to collect the data through network-based online questionnaires in February 2020, a total of 17,876 college students were included in the analysis. Chi-square test and multivariate logistic were used to identify the associations between the outbreak experiences and anxiety detection.Results: This study found that detection rate of anxiety among college students was 18.2%. The differences in male students, students whose self-perceived risk of infection were high, who were greatly affected by the outbreak, eager to go back to school, reluctant to leave home and stay at home enough were of statistical significance among different anxiety level (OR> 1, P< 0.05). And the severe anxiety rate of students who living in cities was significantly higher (2.337[1.468, 3.721]).Conclusion: Although our results show that anxiety among college students was at a low level, various universities should focus on the online activities and develop appropriate epidemic management plans to prevent their feelings of worry, tension and panic.Keywords: anxiety, college students, network-based, COVID-19

Hearing impairment is a highly prevalent condition and potential risk factor of loneliness in older adults. There is little evidence on whether living arrangement modifies the effects of hearing impairment on loneliness in older adults. (1) Explore the relationship between hearing impairment and loneliness in old adults; (2) investigate the modifying effect of living arrangement on the association between hearing impairment and loneliness. A cross-sectional analysis was conducted of 7070 participants (aged 60–101) in Shandong province of China. Hearing impairment was measured by a single self-reported question. Variables about social demography and physical functioning were assessed using self-administered questionnaires, and loneliness using short-form UCLA Loneliness Scale. Linear regression models were performed to evaluate the association between hearing impairment and loneliness and possible effect modified by living arrangement. After controlling variables, older adults with hearing impairment reported significantly higher levels of loneliness than those with normal hearing (β = 0.024; P

OBJECTIVES: To evaluate whether social isolation and loneliness mediates the relationship between hearing loss and depression symptoms in older adults in China. METHODS: A cross-sectional analysis was conducted of 3769 participants (aged≥60 years) in Shandong province of China. Hearing loss was assessed using Pure-Tone Audiometry test, depression symptoms using 15-item Geriatric Depression Scale, loneliness through UCLA Loneliness Scale and social isolation using Lubben Social Network Scale. Regression and bootstrap analyses were performed to test both direct associations of hearing loss and depression symptoms, and whether the mediating role of social isolation and loneliness. RESULTS: Overall, 44% of older adults had hearing loss, which was generally mild (30%) rather than moderate (10%), severe (3%) or profound (0.6%). Increasing levels of hearing loss was associated with increasing levels of social isolation and depressions. Hearing loss was also associated with loneliness, but here a threshold effect was apparent and no trend for increasing loneliness with increasing hearing loss. Models that included social isolation and loneliness showed an amelioration in the association of hearing loss and depression, although it remained significant at all levels of hearing loss. Overall, 8% of the total effect of hearing loss on depression symptoms was explained by the mediated effect through social isolation and 42% by loneliness. CONCLUSIONS: Psychosocial factors such as social isolation and loneliness might explain the association between hearing loss and depression. Interventions that address older adults' social isolation and loneliness may ameliorate depression in older adults with hearing loss.

ObjectiveFew are known on how and to what extent residents and healthcare providers have different preferences for family doctor contract service (FDCS). This study aimed to elicit and compare the residents' and healthcare providers' preferences for FDCS through a discrete choice experiment (DCE).MethodsResidents and healthcare providers recruited for the DCE were asked to choose repeatedly between two hypothetical service plans, which differed in six attributes: cost, service package, service delivery, type of service, accessibility of medicine, and level of healthcare team. We use mixed logit regression models to determine preferences for potential attributes.ResultsA total of 2,159 residents and 729 healthcare providers completed valid DCE questionnaires. The mixed logit model results suggested that cost, service package, service delivery, type of service, accessibility of medicine, and level of healthcare team all had a significant impact on residents' and healthcare providers' preference. The level of healthcare team was the most important characteristic of FDCS to both residents and healthcare providers, followed by types of service. They have different preferences on the cost and way of service delivery.ConclusionsThis study provides new evidence on how and to what extent residents and healthcare providers have different preferences for FDCS by determining their perception of various service attributes. These findings suggested that the optimal design and improvement of FDCS plans should consider not only residents but also healthcare providers' preferences to maximize contract service uptake.

Relative deprivation has been confirmed as one of the pathways underlying the link between income inequality and health. However, the mechanism between relative deprivation and health was still unclear. This study aimed to test the mediating role of depression and the moderating role of social support in the association between relative deprivation and quality of life.Data were collected from the 2020 Household Health Interview Survey in Taian City, Shandong province. In total, 8496 adults were included to complete the measures of relative deprivation, depressive symptoms, perceived social support, and quality of life.Relative deprivation was negatively associated with quality of life, and depressive symptoms could mediate this association. Furthermore, the direct effect of relative deprivation on quality of life and the indirect effect of depressive symptoms in this relationship were moderated by perceived social support. Both these two effects were stronger for individuals with a low level of perceived social support.Data are cross-sectional, and causal conclusions cannot be drawn. All measures were based on participant self-report.Personal relative deprivation has negative effects on quality of life. Social support moderated the direct effect of relative deprivation and the mediating effect of depressive symptoms on quality of life. For individuals with a high level of relative deprivation, particularly those with a low level of social support, interventions tailoring psychological services and community-based activities could be designed to reduce relative deprivation and promote social support for disadvantaged individuals.

Frailty is a public health concern in the ageing population. Little is known about the role of gender in the relationship between frailty and health care utilization in older adults. The study aims to examine gender differences in the association between different frailty status and health care utilization among Chinese older people. A total of 7070 older adults (60+) from Shandong Province, China, were enrolled in this study. Frailty was assessed by frailty index constructed using 45 health deficits. Multivariate logistic regression models were employed separately for men and women to examine the impact of frailty on self-care, outpatient, and inpatient utilization. Overall, the prevalence of frailty was 7.9% in older adults, with 7.1% and 8.3% in men and women, respectively. 49.4% respondents reported they had self-care in the previous 2 weeks, and women were more likely to have self-care than men. Being pre-frail and frail was significantly associated with utilization of all types of health care among older men and women, and the relationship was stronger in the frail groups than that in the pre-frail groups except for self-care. Respective odds ratios for outpatient utilization were higher in men than that in women. Frailty is a frequent condition in Chinese older adults. The association between frailty and health care utilization (except outpatient) tended to be stronger in women than men. The gender differences should be considered when designing the preventing or delaying the installation of frailty and geriatric care plans.

Because of the narrow therapeutic window and huge inter-individual variation, the individual precision on anticoagulant therapy of warfarin is challenging. In our study, we aimed to construct a Back Propagation Neural Network (BPNN) model to predict the individual warfarin maintenance dose among Chinese patients who have undergone heart valve replacement, and validate its prediction accuracy. In this study, we analyzed 13,639 eligible patients extracted from the Chinese Low Intensity Anticoagulant Therapy after Heart Valve Replacement database, which collected data on patients using warfarin after heart valve replacement from 15 centers all over China. Ten percent of patients who were finally enrolled in the database were used as the external validation, while the remaining were randomly divided into the training and internal validation groups at a ratio of 3:1. Input variables were selected by univariate analysis of the general linear model; 2.0, the mean value of the international normalized ratio (INR) range 1.5–2.5, was used as the mandatory variable. The BPNN model and the multiple linear regression (MLR) model were constructed by the training group and validated through comparisons of the mean absolute error (MAE), mean squared error (MSE), root mean squared error (RMSE), and ideal predicted percentage. Finally, 10 input variables were selected and a three-layer BPNN model was constructed. In the BPNN model, the value of MAE (0.688 mg/day and 0.740 mg/day in internal and external validation, respectively), MSE (0.580 mg/day and 0.599 mg/day in internal and external validation, respectively), and RMSE (0.761 mg/day and 0.774 mg/day in internal and external validation, respectively) were achieved. Ideal predicted percentages were high in both internal (63.0%) and external validation (59.7%), respectively. Compared with the MLR model, the BPNN model showed a higher ideal prediction percentage in the external validation group (59.7% vs. 56.6%), and showed the best prediction accuracy in the intermediate-dose subgroup (internal validation group: 85.2%; external validation group: 84.7%) and a high predicted percentage in the high-dose subgroup (internal validation group: 36.2%; external validation group: 39.8%), but poor performance in the low-dose subgroup (internal validation group: 0%; external validation group: 0.3%). Meanwhile, the BPNN model showed better ideal prediction percentage in the high-dose group than the MLR model (internal validation: 36.2% vs. 31.6%; external validation: 42.8% vs. 37.8%). The BPNN model shows promise for predicting the warfarin maintenance dose after heart valve replacement.

(1) Objective: This study aimed to investigate the relationship between dietary patterns and depression in Chinese older adults. (2) Method: A cohort study was conducted on the relationship between dietary patterns and the risk of depression in older adults based on the China Health and Longevity Longitudinal Survey (CLHLS) from 2011 to 2014. Exploratory factor analysis was used to identify dietary patterns. The relationship between dietary patterns and the risk of depression after four years was examined using logistic regression, and subgroup analysis was carried out to determine whether the association differed by gender. (3) Results: A total of 2873 older adults were included in our cohort study. Three dietary patterns were identified: vegetable–egg–bean–milk pattern, meat–fish pattern, and salt-preserved vegetable–garlic pattern. The vegetable–egg–beans–milk pattern was negatively correlated with the risk of geriatric depression development (adjusted OR = 0.65 (95%CI: 0.49–0.87)), and the salt-preserved vegetable–garlic pattern was positively associated with aged depression risk (adjusted OR = 1.33 (95CI: 1.00–1.77)). The meat–fish pattern was not associated with the risk of depression in older adults. These associations were consistent in both men and women. (4) Conclusions: In this cohort study, the vegetable–egg–beans–milk dietary pattern was associated with lower risk of depression, while the salt-preserved vegetable–garlic dietary pattern was associated with higher risk of depression, and there were no gender differences in these associations.

(1) Objectives: With an aging society in China, self-treatment now plays an important role in health care among older adults, but it can be problematic. This study aims to explore and compare the self-treatment behavior among empty and non-empty nesters. (2) Methods: Using a multi-stage stratified random cluster sampling method, a total of 4366 elderly people aged 60 and above from Shandong Province, China, were enrolled in this study. Data were collected through a structured questionnaire. Binary logistic regression was used to analyze the associated factors of self-treatment. (3) Results: The prevalence of self-treatment in empty nesters was significantly lower than that in non-empty ones (74.0% vs. 83.3%). Binary logistic regression analysis showed that higher educational level and poorer self-rated economic status were negatively associated with self-treatment in empty nesters, while unemployed and urban and rural residents&rsquo, basic medical insurance were positively associated with self-treatment in non-empty ones. (4) Conclusions: The study indicated that empty nesters had lower likelihood of self-treatment than non-empty ones. Empty nesters with better socioeconomic status were more likely to use self-treatment, by contrast, non-empty nesters with relatively poorer socioeconomic status were more inclined to self-treatment. Targeted interventions should be developed to maximize the effectiveness of self-treatment and reduce health risks.

ObjectivesWhether the association between obesity-related anthropometric indices and multimorbidity differs by age among Chinese older adults (aged 65+) is unclear. We aimed to investigate the association between body mass index (BMI), waist circumference (WC) and waist-to-hip ratio (WHR) with multimorbidity among the young-old (aged 65–79) and old-old (aged 80+) adults.DesignCross-sectional population-based study.SettingShandong province on the eastern coast of China.Participants5493 subjects aged 65 years or above.MeasurementsDetails on sociodemographics, lifestyle characteristics and chronic conditions were collected using a structured questionnaire. The respondents were assessed with anthropometric measurements including height, weight, WC, hip circumference.ResultsThe overall prevalence of multimorbidity in older adults (aged 65+) was 35.2%. The BMI-obesity, WC-obesity and WHR-obesity rates were 7.4%, 57.5% and 80.4%, respectively. In the young-old adults (aged 65–79), the likelihood of multimorbidity was more than two times higher among the BMI-obese than the BMI-normal population (OR 2.08, 95% CI 1.66 to 2.60). Similar but less strong associations were found for the WC-obese and WHR-obese young-old population (OR 1.60, 95% CI 1.42 to 1.81; OR 1.31, 95% CI 1.10 to 1.56, respectively). For the old-old group (aged 80+), the BMI-obese, WC-obese and WHR-obese had a higher likelihood of having multimorbidity compared with the normal weight category (OR 2.10, 95% CI 0.96 to 4.57; OR 1.75, 95% CI 1.21 to 2.54; OR 2.15, 95% CI 1.18 to 3.93, respectively).ConclusionBMI-obesity, WC-obesity and WHR-obesity were associated with a greater risk of multimorbidity, and the associations were different between the young-old and the old-old adults. These age differences need to be considered in assessing healthy body weight in old age. These findings may be vital for public health surveillance, prevention and management strategies for multimorbidity in older adults.

Objective: This study aims to explore the determinants of general self-efficacy (GSE) among young-old elderly, with focus on examining the gender difference of general self-efficacy. Methods: Data were collected from the 2017 Survey of the Shandong Elderly Family Health Service, which was conducted by Shandong University. T-test was used to examine the gender difference in GSE. Univariate models and adjusted multiple linear regression model were used to explore the determinants of GSE by gender. Results: The females&rsquo, GSE score was lower than that of male participants (26.1 &plusmn, 8.1 vs. 28.7 &plusmn, 7.7), and there was a significant gender difference (t = 10.877, p &lt, 0.001). Multiple linear regression model showed that some factors are common significant determinants of GSE such as age, education level, activity of daily living (ADL), self-rated health, mental health, personality, and whether participants have intimate friends and interpersonal relationships. Hypertension and frequent communication with children were specific determinants of GSE among male young-old. Personal income was a specific determinant of female participants. Conclusion: Some influencing factors of GSE in both genders are identical, the others are different. More attention should be paid for the poor young-old females, young-old males with hypertension, and disabled young-old people.

BackgroundSuicide is a global public health problem which has significant negative influence on individuals, families and the society. The aim of this study is to investigate the prevalence of suicidal ideation and related factors among elderly people in rural China, and further examine the gender differences of suicidal ideation.MethodsData were collected from the 2017 Survey of the Shandong Elderly Family Health Service, which was conducted by Shandong University. A total of 5514 elderly aged 60 and above from rural Shandong were included in this study. Binary logistic regression model was performed to examine the gender difference towards suicidal ideation, and to identify the influencing factors of suicidal ideation by gender among elderly.Results7.7% rural elderly reported suicidal ideation in the past 12 months in Shandong, China. The prevalence of suicidal ideation among females was significantly higher than that among males (P ConclusionsThere was a significant gender difference towards suicidal ideation among rural elderly in Shandong, China. So, gender difference should be considered when medical practitioners and public health workers seek to prevent and manage suicidal ideation among rural elderly, which will be important to develop strategies for coping with risk factors for suicidal ideation among males and females. In other words, more attention should be paid to females who had encountered negative life event or with lower life satisfaction.

Background This study aims to assess the association between body mass index (BMI) and health-related quality of life (HRQOL), and to further explore gender differences in BMI-HRQOL association among adults. Methods We used data from the fifth Health Service Survey of Shandong Province, which was part of China’s National Health Service Survey (NHSS), a total of 27,257 adults aged 18 and over were interviewed. The HRQOL was measured using the EuroQOL-5 Dimensions (EQ-5D) instrument. One-way ANOVA and Post hoc tests were used to compare EQ-5D utility values and visual analogue scale (VAS) scores between BMI categories. Tobit regression models were used to identify the association between BMI and HRQOL for male and female separately after controlling for influential confounders, and to assess gender differences on the relationship between BMI and HRQOL. Results The prevalence of underweight in men and women were 3.2 and 5.3%, respectively, while the prevalence of overweight/obesity in men and women were 35.7 and 34.6%, respectively. Men had higher EQ-5D utility values and VAS scores than women. The mean EQ-5D utility value and VAS score was highest in obese men and normal-weight women, respectively. After controlling potential confounders, being underweight was significantly and negatively associated with lower HRQOL among adults. The relationship between obesity and gender was that in women obesity was negatively and significantly associated with HRQOL, whereas in men this association was positive but not statistically significant. Results of gender by BMI interaction in regression model showed that this difference between men and women in this respect was significant. Conclusions The association between BMI and HRQOL differed by gender and the so-called “obesity-HRQOL paradox” phenomenon was verified in male adults. Gender difference should be considered when implementing targeted weight control programs and appropriate interventions to improve HRQOL.

Objective To examine the rural–urban disparities of home-based care willingness among older adults and identify the influencing factors. Design A cross-sectional study. Setting The data used in this cross-sectional study were conducted in Shandong province. Study participants 7070 older adults (60 years and older) with complete data were included in this analysis from the 2017 Survey of the Shandong Elderly Family Health Service. Intervention N/A. Main outcome measure The data were analyzed using logistic regression models to examine whether socio-demographic characteristic, physical health, loneliness score and other factors were associated with home-based care willingness in rural and urban older adults. After exploring the factors, we compared the difference. Results Of 7070 participants, 66.9% were rural older adults and 33.1% were urban. The urban older adults less likely chose home-based care than the rural (OR = 0.667; P Conclusions The research we have done suggests that there is a residence difference toward home-based care willingness among older adults. Targeted policies and an age-friendly environment should be made for different subgroups of older adults.

This study aims to clarify the association between socioeconomic status (SES), mental health, and the need for long-term services and support (NLTSS) of the Chinese elderly, and further, to provide evidence-based suggestions for the development of the long-term services and support (LTSS) system in China. A cross-sectional survey using a multi-stage random sampling method was conducted in Shandong Province, China, in 2017. Data were collected from seniors aged over 60 years old through questionnaires by face-to face interviews. A total of 7070 subjects were included in the final database (40.3% male and 59.7% female). A chi-square test analysis and structural equation modeling (SEM) were employed to explore the relationship between SES, mental health, and NLTSS for both male and female elderly people. The SEM analysis showed that mental health was significantly and negatively associated with NLTSS for both male elderly and female elderly, and it was slightly stronger among the male elderly. A significant and negative relationship was observed between SES and NLTSS for both genders, and the association was stronger among the female elderly. SES exerted a positive effect on mental health for both male and female elderly people, and a slightly stronger effect was found among the male elderly. Advice for the development of a LTSS system in China was given based on the above results.

Background Frailty and other functional declines may be related to life satisfaction (LS) in the general elderly population. This study aims to investigate the association between frailty and LS among older individuals (age ≥60) and the impacts of age and general self-efficacy on the relationships. Methods Using data from the 2017 Survey of the Shandong elderly Family Health Service, a cross-sectional study was conducted and 7070 older people aged 60+ were analysed. LS was measured using the Satisfaction with Life Scale. A Frailty Index (ranged 0~1) was determined as a proportion of accumulated deficits over 51 categories. General self-efficacy was measured using the Chinese version of the General Self-Efficacy Scale. Multiple weighted linear regression was used to examine possible relationships between the research variables. Results There was a negative association between frailty and LS. A dose-response-type relationship between net income and LS was observed. The interaction between frailty and age was found to be significantly associated with LS. Frailty has a stronger negative impact on LS among the young-old (60-69 years) than among the middle-old (70-79 years) and old-old (80+ years), which suggests a protective effect of ageing on LS reduction due to frailty. However, this protective effect was observed among individuals with low and medium level self-efficacy. Conclusions The relationship between frailty and LS generally weaken with age. The higher level of general self-efficacy may provide a partial buffer against the negative impact of frailty on LS. Interventions that target to prevent and manage frailty should consider being prioritised among the young-old population. Development of self-efficacy could serve as an important strategy to buffer the negative effect of frailty on LS among older people.

Objectives: To examine the prevalence of loneliness and to explore the association between loneliness and health service utilization among the rural elderly in Shandong Province, China. Methods: A total of 5514 rural people aged 60 and above from Shandong Province, China, were enrolled in this study. Loneliness was used as a binary variable based on a single-item question. Health service utilization was measured by recent two-week physician visits and annual hospitalizations rates. Multiple logistic regression analysis was performed to examine the association between loneliness and health service utilization. Results: The prevalence of loneliness among the rural elderly in Shandong, China, was 25.0%. Loneliness was associated with higher rates of recent two-week physician visits (OR = 1.260, p &lt, 0.01) and annual hospitalizations (OR = 1.183, p &lt, 0.05). The regression results also showed that self-rated health status and chronic conditions were significant and positively associated with both physician visits and hospitalizations rates. Conclusions: Loneliness had a significant association with higher odds of health service utilization among the elderly. The independent contribution of loneliness on health service utilization was smaller than self-rated health status and chronic conditions. Thus, healthcare policies need to shift from an emphasis on controlling health utilization and cost to a greater focus on enabling lonely older people to get more social support.

This study aims to explore the association of anthropometric indices of obesity with hypertension in Chinese elderly and its possible gender and age differences. A total of 7070 adults age 60 or older were interviewed in a cross-sectional study conducted in 2017. Anthropometric indices for each participant were measured by using standard methods of trained doctoral/master students. We performed two binary logistic regression models to examine the association of the nine different anthropometric indices and hypertension by gender. Lastly, analyses were performed in two steps stratified for age. Comparing individuals with and without hypertension, there were statistically significant differences in anthropometric indices except height, a body shape index (ABSI), and hip index (HI) in males; and except height in females. There were gender differences in the relationship between anthropometric indices and the prevalence of hypertension in Chinese older adults. After stratification by age, the associations of all anthropometric indices became weaker, disappeared, or even went in the opposite direction. Furthermore, body mass index (BMI) in men (except individuals older than 80) and hip circumference (HC) in women showed a significant impact on the risk of hypertension. The association of anthropometric indices of obesity with hypertension in Chinese elderly differ by gender and age. These findings indicate a need to develop gender-specific strategies for the male and female elderly in the primary and secondary prevention of hypertension.

Background It’s difficult but urgent to achieve the individualized rational medication of the warfarin, we aim to predict the individualized warfarin stable dose though the artificial intelligent Adaptive neural-fuzzy inference system (ANFIS). Methods Our retrospective analysis based on a clinical database, involving 21,863 patients from 15 Chinese provinces who receive oral warfarin after the heart valve replacement. They were allocated into four groups: the external validation group (A group), the internal validation group (B group), training group (C group) and stratified training group (D group). We used a univariate analysis of general linear models(GLM-univariate) to select the input variables and construct two prediction models by the ANFIS with the training and stratified training group, and then verify models with two validation groups by the mean squared error(MSE), mean absolute error(MAE) and the ideal predicted percentage. Results A total of 13,639 eligible patients were selected, including 1639 in A group, 3000 in B group, 9000 in C group, and 3192 in D group. Nine input variables were selected out and two five-layered ANFIS models were built. ANFIS model achieved the highest total ideal predicted percentage 63.7%. In the dose subgroups, all the models performed best in the intermediate-dose group with the ideal predicted percentage 82.4~ 86.4%, and the use of the stratified training group slightly increased the prediction accuracy in low-dose group by 8.8 and 5.2%, respectively. Conclusion As a preliminary attempt, ANFIS model predicted the warfarin stable dose properly after heart valve surgery among Chinese, and also proved that Chinese need lower anticoagulation intensity INR (1.5–2.5) to warfarin by reference to the recommended INR (2.5–3.5) in the developed countries.

Objectives: The aim of this study was to understand the willingness for downward referral among older adults who were hospitalized in the year before the survey and to explore its influencing factors. Methods: The sample was randomly selected by the multi-stage sampling method. A structural questionnaire was used to collect data from participants age 60 and above in Shandong, China, during August 2017. Data were analyzed by using descriptive statistics, one-way ANOVA, chi-square test, and multinomial logistic regression. Results: Of 1198 participants who were hospitalized in the year before the survey, 28.7% self-initiated downward referral, and 33.9% were willing to accept downward referral after a doctor&rsquo, s advice. Multinomial logistic regression results showed that self-rated health, treatment effect in primary medical institutions, preference for outpatient service, choice of inpatient service, general understanding of essential medicines, the cost of essential medicines after zero-markup policy, and satisfaction with essential medicines&rsquo, reimbursement policy significantly correlated with older adults&rsquo, willingness for downward referral. Conclusions: The proportion of older adults who self-initiated downward referral was less than one-third. Doctors&rsquo, advice plays an important role in willingness for downward referral. More attention should be paid to improving the treatment effect of primary medical institutions, increasing the benefits of zero-markup policy, and ensuring a high reimbursement for the downward referral to work alongside doctors&rsquo, advice.

a Chinese Evidence-based Medicine Center, West China Medical School of Medicine/West China Hospital, Sichuan University, China b Division of Cardiology, Department of Medicine & Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China c Department of Anesthesiology, China Mianyang Central Hospital, China d Department of Cardiovascular Surgery, West China Hospital, Sichuan University, China

Objective: Suicide is a major public health and social problem in contemporary societies. Previous studies showed that the older the seniors were, the more likely it was that they would experience disability, chronic disease, or both. The objective of this study was to examine the joint effects of chronic disease and physical disability on suicide ideation while controlling for psychological distress among the rural elderly living in Shandong Province, China. Method: A total of 5514 rural elderly individuals (60+) living in Shandong Province, China were included in this study. Suicidal ideation was assessed by using questions from the National Comorbidity Survey (NCS). Multiple logistic analyses were performed to examine the factors associated with suicide ideation. A path analysis was conducted to test the direct and indirect effects of chronic disease and of activity of daily living (ADL) limitation on suicide ideation while controlling for psychological distress. Results: The prevalence of suicide ideation among the rural elderly in Shandong, China was 11.0%. Psychological distress had the strongest direct (&beta, = 0.392) and total effect (&beta, = 0.392), chronic disease (&beta, = &minus, 0.034, &beta, 0.063) had both direct and indirect impacts, and ADL (&beta, = 0.091) had indirect impacts on suicide ideation. Psychological distress was a mediator between chronic disease, ADL limitation, and suicide ideation. Conclusions: Psychological distress was the greatest influencing factor of suicide ideation among the rural elderly, followed by chronic disease and disability. Effective intervention measures should be taken to facilitate the early detection of psychological distress in clinical practice among the rural elderly.

Current methods for diagnosing tuberculous pleurisy are poor. Some studies have explored the diagnostic value of a pleural effusion enzyme-linked immunospot (ELISPOT) assay, but its accuracy remains controversial. Therefore, we performed a meta-analysis of the existing evidence on the ability of the ELISPOT assay to diagnose tuberculous pleurisy. We systematically searched PubMed, Google Scholar, and EMBASE databases for studies measuring the sensitivity, specificity, and other measures of accuracy of the pleural effusion ELISPOT assay for diagnosis of tuberculous pleurisy. A total of nine studies were identified and subjected to meta-analysis, giving the following pooled values for diagnostic accuracy: sensitivity, 0.93 [95% confidence intervals (95%CI) = 0.90 to 0.95]; specificity, 0.90 (95%CI = 0.86 to 0.93); positive likelihood ratio, 8.21 (95%CI = 4.00 to 16.84); negative likelihood ratio, 0.11 (95%CI = 0.06 to 0.19); diagnostic odds ratio, 88.26 (95%CI = 33.81 to 230.43); and the area under the curve, 0.9599 (standard error of the mean, 0.0134). The available evidence suggests that pleural effusion ELISPOT assay is sufficiently accurate to diagnose tuberculous pleurisy as a stand-alone technique. In fact, it appears to be superior to assays based on adenosine deaminase and gamma interferon for screening patients and confirming the diagnosis of tuberculous pleurisy.

Purpose: While the bronchoalveolar lavage enzyme-linked immunospot assay (BAL-ELISPOT) shows promise for diagnosing smear-negative tuberculosis, its accuracy remains controversial. We meta-analyzed the available evidence to obtain a clearer understanding of the diagnostic accuracy. Methods: Studies of the diagnostic performance of ELI-SPOT on smear-negative tuberculosis were identified through systematic searches of the PubMed and EMBASE databases. Pooled data on sensitivity, specificity and other measures of accuracy were meta-analyzed using a random-effects model. Summary receiver operating characteristic curves were used to assess overall test performance. Results: A total of 7 studies were included in the meta-analysis. Diagnostic performance was as follows: sensitivity, 0.89 (95% CI 0.84 to 0.93); specificity, 0.78 (95% CI 0.74 to 0.81); positive likelihood ratio, 4.2 (95% CI 2.42 to 7.28); negative likelihood ratio, 0.14 (95% CI 0.06 to 0.33); diagnostic odds ratio, 36.16 (95% CI 9.70 to 134.73); and area under the curve, 0.9605 (SEM 0.0247). Conclusions: Available evidence suggests that BAL-ELISPOT may perform better than blood-ELISPOT for both screening and confirming a diagnosis of smear-negative tuberculosis. Nevertheless, BAL-ELISPOT should be not used alone but rather in parallel with clinical manifestations and conventional tests to ensure reliable diagnosis.

Asthma is a common airway inflammation, but current methods for diagnosing it are poor. Here we meta-analyze the available evidence on the ability of exhaled nitric oxide (eNO) in asthma to serve as a diagnostic marker of asthma. We systematically searched the PubMed and EMBASE databases, published data on sensitivity, specificity and other measures of diagnostic accuracy of eNO in the diagnosis of asthma were meta-analyzed. The methodological quality of each study was assessed by QUADAS-2 (quality assessment for studies of diagnostic accuracy). Statistical analysis was performed by employing Meta-Disc 1.4 software and STATA. And the measures of accuracy of eNO in the diagnosis of asthma were pooled using random-effects models. A total of nineteen publications reporting twenty-one case-control studies were identified. Pooled results indicated that eNO showed a diagnostic sensitivity of 0.78 (95% CI 0.76 to 0.80), specificity was 0.74 (95% CI 0.72 to 0.76). PLR was 3.70 (95% CI 2.84 to 4.81) and NLR was 0.35 (95% CI 0.26 to 0.47). DOR was 11.37 (95% CI 7.54 to 17.13). Exhaled nitric oxide show insufficient sensitivity and specificity for diagnosing asthma, eNO measurements may be useful in combination with clinical manifestations and conventional tests such as pulmonary function tests, assessment of bronchodilator response and bronchial challenge tests.