Mechanisms underlying the relationship between the intersectionality of multiple social identities with depression among US adults: A population-based study on the mediating roles of lifestyle behaviors.

BACKGROUND: Despite substantial efforts to investigate the inequalities in mental health among people with marginalized identities, most research has concentrated on single social identities rather than complete persons. The current study aimed to explore the mechanisms underlying the relationship between the intersectionality of multiple social identities with depression among US adults. METHODS: Data for this study came from the National Health and Nutrition Examination Survey waves between 2015 and 2018, including a total of 11,268 US adults. A latent class analysis (LCA) was conducted to identify latent subpopulations based on sex, race/ethnicity, immigrant status, disability, household income, employment status, and education level. Interclass differences in lifestyle factors and depression were examined. Multiple mediation analysis was used to examine the mediating roles of lifestyle behaviors. RESULTS: LCA identified four potential subpopulations: "least marginalized", "immigrant minorities", "disabled, less-educated non-workers", and "low-income minorities" groups. There was enormous heterogeneity in mental health among immigrant minority individuals. The "disabled, less-educated non-workers" group had the highest rates of depression; in contrast, the "immigrant minorities" group had the best mental health, even better than that of the "least marginalized" group. Distributions of lifestyle factors followed a similar pattern. In addition, lifestyle behaviors significantly mediated the relationship between intersectional social identities and depression. LIMITATIONS: The cross-sectional design prevented establishment of the causality of relationships. CONCLUSIONS: This study suggests that applying a person-centered approach is important when examining intersectional inequalities in mental health and highlights the effects of structural social hierarchies on individuals' health behaviors and mental health.

Prevalence of Suicidal Ideation, Suicide Plans, and Suicide Attempts Among Children and Adolescents Under 18 years of Age in Mainland China: A Systematic Review and Meta-Analysis.

Despite suicide in younger population having become a severe public health issue, information on the prevalence of suicidality among Chinese children and adolescents is still limited. This study aims to estimate the prevalence of suicidal ideation, suicide plans, and suicide attempts in Chinese children and adolescents aged under 18 years. A meta-analysis was conducted based on English and Chinese publications from January 1, 2010 to December 31, 2020 using random-effects models. Based on 132 eligible studies with a combined total of 1,103,309 Chinese children and adolescents below 18 years old, the pooled prevalence of the overall suicidal ideation, suicide plans, and suicide attempts were 15.4% (95% CI [14.3, 16.6]), 6.4% (95% CI [5.5, 7.4]) and 3.5% (95% CI [3.1, 4.1]), respectively. The subgroup analyses showed that there were significant variations of prevalence of suicidal risks across genders, school stages, and geographical areas in mainland China. It was the first systematic review and meta-analysis to show suicidality among younger population aged below 18 years is prevalent in mainland China. This study suggests that gender-age-region-specific prevention and intervention programs should be urgently needed to reduce suicidal risks among Chinese children and adolescents.

The Prevalence of Bullying Victimization and Perpetration Among the School-Aged Population in Chinese Communities: A Systematic Review and Meta-Analysis.

Though bullying was predominantly documented in Western societies, increasing attention has been paid to bullying in Chinese communities during recent years. It remains unknown whether bullying among youngsters in the Chinese communities is similar to or different from their counterparts in Western societies. A systematic review was primarily conducted in English and Chinese databases from the start to December 31, 2021. This study estimated the prevalence of overall (integrating both face-to-face and cyber forms), face-to-face, and cyber bullying victimization and perpetration using random-effects models. Based on 68 eligible studies, this study revealed a pooled prevalence of overall bullying victimization of 22.7% (95% Confidence Interval [CI] [17.7, 28.6]) and a pooled prevalence of overall bullying perpetration of 15.7% (95% CI [6.7, 32.3]). Besides, the estimated prevalence were 20.8% and 10.3% for face-to-face bullying victimization and perpetration, while 9.6% and 8.4% for cyberbullying victimization and perpetration. The subgroup analyses showed that the high heterogeneity of prevalence among the studies estimating bullying victimization and perpetration could be accounted for by sample characteristics and the measurement approaches. This study suggests that bullying is prevalent in the Chinese communities, comparable to, if not higher than, in the Western societies. Prevention and intervention programs are urgently required to reduce bullying among the school-aged population in Chinese communities.

Oral health and depressive symptoms among older adults in urban China: a moderated mediation model analysis.

BACKGROUND: This study explored the association between oral health and depression occurs via daily dietary satisfaction as a mediator, and that body mass index could moderate the path between daily dietary satisfaction and depression. METHODS: Data for this research were derived from a community survey adopting quota sampling in the cities of Tianjin and Shijiazhuang in mainland China in 2020 (N = 781). The moderated mediation model was tested by using bootstrapping with resampling strategies, and the Johnson-Neyman technique was used to visualize the moderating effect of body mass index. RESULTS: A significant negative association between oral health and depression has been indicated (B = -0.22, SE = 0.11, 95%CI [- 0.44, - 0.01]), and dietary satisfaction partially mediated the relationship between oral health and depression (B = -0.04, SE = 0.02, 95%CI [- 0.09, - 0.002]). The path was moderated by body mass index, and the effect of dietary satisfaction on depression was much greater in people with relatively low body mass index. CONCLUSIONS: This study present evidence for policymakers and researchers that strategies to enhance oral health and daily dietary satisfaction could be important for preventing depression in Chinese older adults, and especially for the relatively fitter older groups with lower body mass index.

Adverse childhood experiences, sexual orientation, and depressive symptoms among Chinese college students: An ecological framework analysis.

BACKGROUND: Extensive evidence has demonstrated that adverse childhood experiences (ACEs) predict a high risk of negative health and behavioral outcomes in later life. However, the influence of individuals' psychosocial characteristics and environmental stressors have been mostly omitted in previous research. OBJECTIVE: This study aimed to examine the prevalence of ACEs among LGB (lesbian, gay, and bisexual) and heterosexual emerging adults, and the associations between different patterns of ACE exposure and depressive symptoms after adjusting for factors at different levels. PARTICIPANTS AND SETTING: A representative sample of 928 college students in Xiamen city, China was recruited. METHODS: Latent class analysis was applied to identify the patterns of ACEs. A series of regression analyses were conducted to examine the associations between ACEs and depression and whether ACEs interacted with sexual identity to influence depression, after controlling for individual characteristics, family, school, and society-level factors. RESULTS: Over 35 % of the participants reported they had experienced at least one type of moderate to extreme childhood maltreatment, and those who identified as LGB reported a higher level of ACE exposure. Higher levels of ACE exposure based on score and clustering approaches were associated with higher risks of depression among Chinese emerging adults. However, the associations between ACEs and depression were not significantly moderated by sexual identity. CONCLUSIONS: The findings highlighted the importance of early screening for ACEs particularly among sexual minorities and of delivering tailored interventions based on ecological backgrounds. Both the traditional scoring approach and a data-driven approach can be effective in detecting the cumulative effect of ACEs.

Mechanisms connecting insomnia to hopelessness among Chinese older adults: Serial mediating roles of fatigue and social support.

BACKGROUND: Hopelessness and insomnia remain growing mental health issues worldwide, their relationship has been neglected by international development policies, especially in the countries with rapidly aging population like China. However, there is little conclusive evidence on the mechanisms through which insomnia severity influences hopelessness. Based on previous research regarding the significant associations among fatigue, social support, insomnia and hopelessness, this study aims to investigate the relationship between insomnia and hopelessness as well as how insomnia affects hopelessness through fatigue and social support. METHODS: A population-based data including 946 community-dwelling older adults extracted from "Elderly Care Household Survey in 2019" in Beijing were used. The age of the participants ranged from 66 to 97 years old, and 53.3% of the respondents were female. Intercorrelations among insomnia, fatigue, social support and hopelessness were examined. Serial multiple mediation models were analyzed by the bootstrapping method to assess whether fatigue and social support serially mediate the relationship between insomnia and hopelessness. RESULTS: Higher level of insomnia severity (coefficient = 0.0421, p < 0.001), higher level of fatigue (coefficient = 0.0171, p < 0.001), and lower level of social support (coefficient = -0.0320, p < 0.001) were significantly associated with higher level of hopelessness. Fatigue and social support in serial, mediated the relationship between insomnia and hopelessness (total effect: coefficient = 0.0623, 95% CI [0.0466, 0.0780]; total direct effect: coefficient = 0.0421, 95% CI [0.0262, 0.0581]; total indirect effect: coefficient = 0.0202, 95% CI [0.0147, 0.0272]). CONCLUSIONS: Improving sleep quality and eliminating fatigue could effectively alleviate the sense of hopelessness among Chinese older adults. In addition, establishing stronger social support brought by social network from family and friends could confer resilience against the negative effects of despair brought by insomnia. Our findings highlighted the mechanism connecting insomnia to hopelessness, which would inspire the future practice.

Mobility Based on GPS Trajectory Data and Interviews: A Pilot Study to Understand the Differences between Lower- and Higher-Income Older Adults in Hong Kong.

Few studies have examined mobility from a social exclusion perspective. Limited mobility can restrict opportunities to interact with others and therefore may lead to social exclusion. This pilot study was designed to test the feasibility of integrating Global Positioning System (GPS) trajectory data and interview data to understand the different mobility patterns between lower- and higher-income older adults in Hong Kong and the potential reasons for and impacts of these differences. Lower- (n = 21) and higher- (n = 24) income adults aged 60 years of age or older in Hong Kong were recruited based on purposive sampling. They were asked to wear a GPS device for 7 days. Seven measures of mobility (four dimensions) were created based on GPS data and compared between lower- and higher-income older adults, including extensity (standard deviation ellipse, standard distance between all locations), intensity (time spent out of home, doing activities), diversity (number of locations), and non-exclusivity (time spent in public open spaces and places with higher public service provisions). It then administered semi-structured interviews to understand the determined differences. The activity spaces for lower-income older adults were, on average, smaller than those for higher-income older adults, but lower-income older adults spent significantly more time participating in out-of-home activities. They were more likely to be exposed to environments with similar socioeconomic characteristics as their own. The interviews showed that limited social networks and expenditure on transport were the two main factors associated with lower-income older adults having relatively fewer activity spaces, which may lead to further social exclusion. We recommend using GPS in daily life as a feasible way to capture the mobility patterns and using interviews to deeply understand the different patterns between lower- and higher-income older adults. Policy strategies aiming to improve the mobility of older might be helpful for further improving the social inclusion of lower-income older adults.

Criminalisation of suicide and suicide rates: an ecological study of 171 countries in the world.

OBJECTIVE: In the last half of the 20th century, many countries have already abolished antisuicide laws; however, more than 20 countries still adopt them. This paper is the first to systematically explore the association between criminalisation of suicide and national suicide rates in 171 countries/regions to examine the deterring effects of the antisuicide laws. DESIGN: A cross-sectional ecological study. SETTING: 171 countries in the world. PARTICIPANTS: In 2012, 25 countries were identified to carry antisuicide laws. A linear regression analysis was adopted to explore the association between national suicide rates (log transformed) and criminalisation of suicide in the world in 2012, having controlled for the Human Development Index (HDI), majority religious affiliations and the national unemployment rate. MAIN OUTCOME MEASURE: Sex-specific age standardised suicide mortality rates. RESULTS: Criminalisation of suicide was associated with slightly increased national suicide rates (ß estimate=0.29, 95% CI -0.04 to 0.61). Stronger association was found in women (ß estimate=0.40, 95% CI 0.06 to 0.74), connecting criminalisation of suicide and higher suicide rates. The harmful effect of antisuicide laws on women was particularly prominent in non-Muslim countries and countries with lower HDI. CONCLUSIONS: Laws penalising suicide were associated with higher national suicide rates and even more so in the female population in the low HDI, non-Muslim countries. The non-supportive patriarchal culture with laws penalising suicide may render women vulnerable to suicidality. Instead of criminalising suicide, alternative approaches such as providing good mental healthcare and adjusting the socioeconomic, legal and cultural factors that contribute to suicide should be considered.

The lethality of suicide methods: A systematic review and meta-analysis.

BACKGROUND: The use of suicide methods largely determines the outcome of suicide acts. However, no existing meta-analysis has assessed the case fatality rates (CFRs) by different suicide methods. The current study aimed to fill this gap. METHODS: We searched Scopus, Web of Science, PubMed, ProQuest and Embase for studies reporting method-specific CFRs in suicide, published from inception to 31 December 2020. A random-effect model meta-analysis was applied to compute pooled estimates. RESULTS: Of 10,708 studies screened, 34 studies were included in the meta-analysis. Based on the suicide acts that resulted in death or hospitalization, firearms were found to be the most lethal method (CFR:89.7%), followed by hanging/suffocation (84.5%), drowning (80.4%), gas poisoning (56.6%), jumping (46.7%), drug/liquid poisoning (8.0%) and cutting (4.0%). The rank of the lethality for different methods remained relatively stable across study setting, sex and age group. Method-specific CFRs for males and females were similar for most suicide methods, while method-CFRs were specifically higher in older adults. CONCLUSIONS: This study is the first meta-analysis that provides significant evidence for the wide variation of the lethality of suicide methods. Restricting highly lethal methods based on local context is vital in suicide prevention.

The contribution of method choice to gender disparity in suicide mortality: A population-based study in Hong Kong and the United States of America.

BACKGROUND: In most countries, more females than males attempt suicide, yet suicide mortality is typically higher for males. The aim of this study was to investigate how suicide method choice contributed to gender disparity in suicide mortality. METHODS: This study used population-based data collected in Hong Kong (HK) and the United States of America (USA) (2007-2014), comprising suicide deaths and medically treated suicide attempts. We calculated suicide rates, suicide act rates, and case fatality rates (CFRs), by gender and suicide method in HK and the USA respectively. Decomposition analysis was used to quantify the contribution of gender differences in method choice and method-specific CFRs to the excess male suicide rates in each region. RESULTS: Gender disparity in suicide mortality was mostly driven by gender differences in method used in suicide acts. In HK, gender difference in choosing jumping as the method in suicide acts explained 44.5% of the gender imbalance in suicide rates, whilst in USA, 62.4% of male excess in suicide rates was explained by gender difference in using firearms in suicide acts. LIMITATIONS: Cases of suicide attempts in this study were restricted to those severe enough to require medical attention. CONCLUSION: Gender-specific suicide method choice largely determined gender patterns in suicide. Our findings highlighted the importance of developing locally tailored suicide prevention strategies targeting commonly used and highly lethal suicide methods. Future research is needed to explore underlying reasons for gender differences in method choice.

Women's suicide in low-, middle-, and high-income countries: Do laws discriminating against women matter?

BACKGROUND: Women's suicide is a serious public health issue in low- and middle-income countries (LMIC). This study explored whether institutional discrimination against women, as manifested in formal and informal laws, is relevant to country's income-level variability in women's suicide mortality. It also examined which discriminatory laws are associated with LMIC women's suicides. METHODS: Scores on laws discriminating against women, across 176 countries, were obtained from the Gender, Institutions and Development Database. Male-to-female (M/F) 2017 suicide ratios were the index of women's propensity for suicide. The mediating role of laws discriminating against women on the association between country's income level and M/F suicide ratio was analysed by bootstrapping method. Regression analyses examined which discriminatory laws were associated with LMIC women's suicide rates. RESULTS: LMIC had significantly smaller M/F suicide ratios than high-income countries. Institutional discrimination mediated the association between country's income-level and M/F suicide ratio (total effect: ß = -0.13, 95% CI [ -0.26, -0.01]; direct effect: ß = -0.06, 95% CI [ -0.20, 0.08]; indirect effect: ß = -0.07, 95% CI [ -0.15, -0.02]). In LMIC, higher levels of discrimination against women in laws about access to productive and financial resources (ß = -0.69, p < 0.001), civil liberties (ß = -0.60, p < 0.001), and in family law (ß = -0.57, p < 0.001) were associated with smaller M/F suicide ratios after controlling for male suicide rates and sex ratios at birth. CONCLUSIONS: The relatively high suicide rates recorded among women in LMIC might be related to the higher level of institutional discrimination women experience in these countries. In LMIC, where, by law, women had restricted access to productive and financial assets and to justice, and/or unequal rights with regard to citizenship, household-responsibilities, divorce, and inheritance, M/F suicide ratios were lower-that is, women's suicide rates were higher. Suicide theory, research, and prevention targeting women should incorporate social-context and social-justice perspectives.

Caregiving as suicide-prevention: an ecological 20-country study of the association between men's family carework, unemployment, and suicide.

PURPOSE: Suicide rates are generally higher in men than in women. Men's higher suicide mortality is often attributed to public-life adversities, such as unemployment. Building on the theory that men's suicide vulnerability is also related to their private-life behaviors, particularly men's low engagement in family carework, this ecological study explored the association between men's family carework, unemployment, and suicide. METHODS: Family-carework data for twenty Organization for Economic Co-operation and Development (OECD) countries were obtained from the OECD Family Database. Sex-specific age-standardized suicide rates came from the Global Burden of Disease dataset. The association between men's engagement in family carework and suicide rates by sex was estimated, with OECD's unemployment-benefits index and United-Nations' Human Development-Index (HDI) evaluated as controls. The moderation of men's carework on the unemployment-suicide relationship was also assessed. RESULTS: Overall and sex-specific suicide rates were lower in countries where men reported more family carework. In these countries, higher unemployment rates were not associated with higher male suicide rates. In countries where men reported less family carework, higher unemployment was associated with higher male suicide rates, independent of country's HDI. Unemployment benefits were not associated with suicide rates. Men's family carework moderated the association between unemployment and suicide rates. CONCLUSION: This study's findings that higher levels of men's family carework were associated with lower suicide mortality, especially among men and under high-unemployment conditions, point to the suicide-protective potential of men's family carework. They are consistent with evidence that where gender equality is greater, men's and women's well-being, health, and longevity are greater.

Combined effects of individual and neighbourhood socioeconomic status on older adults' mortality: a retrospective follow-up study in Hong Kong.

OBJECTIVES: This study examined the interaction effects of individual and neighbourhood socioeconomic status (SES) in older adults in Hong Kong, considering all-cause and cause-specific mortality from respiratory disease, cancer, cardiovascular diseases, ischaemic heart disease, stroke, nonmedical disease and suicide. DESIGN: A retrospective follow-up study. SETTING: Hong Kong Special Administrative Region, a rapidly ageing society with 16.1% residents aged 65 years or older in 2020. PARTICIPANTS: 43 910 people aged 65 years or older were enrolled at baseline. They had participated in health check-ups during 2000-2003 in one of the Elderly Health Centres. Observation periods started on the date of the participant's first health check-up, and ended at death, or 31 December 2011, whichever occurred first. OUTCOME MEASURES: All-cause and cause-specific mortality over the study timeframe. ANALYSIS: Cox's proportional hazards regression models were applied to estimate the adjusted HRs of mortality, by including covariates at neighbourhood (deprivation) and individual levels (poverty, education and type of housing). RESULTS: The 'double tragedy theory' (ie, lower SES persons living in lower SES neighbourhoods have worst health outcomes) was more related to cancer, while the 'psychosocial comparison theory' (ie, lower SES persons living in higher SES neighbourhoods have poorer health outcomes) was more related to cardiovascular, ischaemic heart disease, and stroke. CONCLUSION: There were important interaction effects between neighbourhood and individual factors on mortality. Policies based on the interaction between individual and neighbourhood SES should be considered. For instance, for cancer, targeted services (ie, free consultation, relevant treatment information, health check-up, etc) could be allocated in socioeconomically deprived areas to support individuals with low SES. On the other hand, more free public services to reduce psychological stresses (ie, psychological support services, recreational services, health knowledge information, etc) could be provided for those individuals with low SES living in higher SES areas to reduce stroke, cardiovascular and ischaemic heart diseases.

Mechanisms connecting objective and subjective poverty to mental health: Serial mediation roles of negative life events and social support.

BACKGROUND: Mental health and poverty remain pressing global challenges yet, their relationship has been neglected by international development policies, even in high income societies. This study aims to investigate the relationship between objective/subjective poverty and mental health and its potential mechanism. METHODS: A population-based data including 1,605 household heads extracted from the Hong Kong Panel Survey for Poverty Alleviation in 2015 were used. Multiple linear regression was conducted to examine the associations among poverty, negative life events, social support and mental health. Serial multiple mediation models were analyzed by the bootstrapping method to assess whether negative life events and social support mediate the relationship between objective/subjective poverty and mental health. RESULTS: Subjective and objective poverty were significantly associated with higher risks of negative life events, less social support and mental distress (p < 0.001). Negative life events and social support in serial partially mediated the relationship between subjective poverty and mental health (total effect: Standardized ß = 0.41,Standardized SE = 0.05, ß = 2.07, 95% CI [1.59, 2.55]; total direct effect: Standardized ß = 0.26, Standardized SE = 0.04, ß = 1.34, 95% CI [0.86, 1.81]; total indirect effect: Standardized ß = 0.14, Standardized SE = 0.04, ß = 0.73, 95% CI [0.51,0.97]). By contrast, even though the total direct effect of objective poverty on mental distress was not statistically significant (Standardized ß = 0.08, Standardized SE = 0.05, ß = 0.41, 95% CI [-0.12, 0.94]), this relationship was also mediated by negative life events and social support (total effect: Standardized ß = 0.21, Standardized SE = 0.06, ß = 1.08, 95% CI [0.52, 1.65]; total indirect effect: Standardized ß = 0.13, Standardized SE = 0.02, ß = 0.67, 95% CI [0.43, 0.92]). CONCLUSIONS: Social support including informational, instrumental and financial could be effective buffers that confer resilience against the negative effects of poverty and adverse life events on mental health. In addition, reducing perceived poverty seemed to be more effective in improving mental health compared to the objective poverty alleviation, and further research are needed to confirm this conclusion.

A scientometric analysis of suicide research: 1990-2018.

BACKGROUND: Increasing knowledge on suicide prevention has been shown to be important for suicide prevention. This paper exams the accomplishment of research on suicide and examine how those research activities contribute to the change of suicide rates. METHODS: Data of the publications relating to suicide from 1990 to 2018 were retrieved from the Web of Science and Scopus. Bibliographic information was analyzed and the relationships between suicide rates with the number of publications per million population and the average article citations per year were examined. RESULTS: From 1990 to 2018, globally, publications on suicide have increased significantly. The United States ("USA") had the greatest number of publications. Research collaborations among different countries/regions have been flourishing and multinational centers have become more common than ever. Nonetheless, in some countries/regions with high rates of suicide, suicide research was scarce. It was found that the number of publications per million population and the average article citations per year were negatively correlated with the suicide rates at the global level (r = - 0.96, p < 0.001; r = -0.91, p < 0.001, respectively), but not in the higher SDI regions (r = -0.05, p = 0.81; r = 0.02, p = 0.91, respectively). Furthermore, research focusing on suicide intervention was also relatively limited. LIMITATION: The origins of the publications were only based on the corresponding authors' regions. CONCLUSIONS: There is significant imbalance in the amount of research effort especially in the regions with high suicide rates. In the higher socioeconomic level regions, the quantity and quality of publications sometimes do not transpire in the reduction of suicide rates. A better connection between the fundamental and practical suicide research should be established. More resources should be made available to the low- and middle-income countries/regions with higher suicide risks, then the effect of suicide prevention might be much more significant.

Association of neighbourhood social and physical attributes with depression in older adults in Hong Kong: a multilevel analysis.

BACKGROUND: Previous studies investigating the independent effects of neighbourhood-level factors on depression are rare within the Asian context, especially in the elderly population. METHODS: Data for 29 099 older adults aged 65 years or above who have received health examinations at elderly health centres in Hong Kong in 2008-2011 were analysed. Using multilevel regression modelling, the cross-sectional associations of neighbourhood social attributes (neighbourhood poverty, ethnic minority, residential stability and elderly concentration) and physical (built) attributes (recreational services and walkability) with depression outcomes (depressive symptoms and depression) after adjusting for individual-level characteristics were investigated. Gender interaction effects were also examined. RESULTS: Neighbourhood poverty was associated with both depressive symptoms and depression in the elderly. Neighbourhood elderly concentration, recreational services and walkability were associated with fewer depressive symptoms. The association between neighbourhood poverty and elderly depressive symptoms was found in women only and not in men. CONCLUSION: Policies aimed at reducing neighbourhood poverty, increasing access to recreational services and enhancing walkability might be effective strategies to prevent depression in older adults in the urban settings.

The geography of suicide in older adults in Hong Kong: An ecological study.

OBJECTIVES: The geography of suicide has been widely explored among the general population. However, little is known of the geographic variations in suicides among the older adults and their spatial correlates. This study aims to explore the spatial variations in the elderly suicide rates and their correlates in Hong Kong. METHODS: Bayesian hierarchical models have been used to estimate smoothed standardized mortality ratios (2006-2015) on suicide in people aged 65 years or older in each geographic unit in Hong Kong. Their associations with the Social Vulnerability Index and the accessibility of eight types of services (ie, recreational services, rehabilitation services, food services, daily necessity services, community services, and transportation services) were further analyzed. RESULTS: The results suggested that compared with the simple "inner-city high suicide rate and suburban low" pattern in the Western studies and the "central low suicide rate and peripheral high" pattern in the Asian studies, the spatial variations of elderly suicides in Hong Kong exhibit a much more complicated pattern. In Hong Kong, higher elderly suicide clusters were found in both the lower-density areas located in the New Territories and in some inner-city areas. The spatial variations of suicide in the older adults cannot be explained by the Social Vulnerability Index. Instead, service provision such as recreational services, daily necessity resources, and community centers played a more significant role in affecting suicides in the older adults. CONCLUSIONS: Strengthening public services, providing more public spaces and activities, and making good use of the community resources might be key and efficient strategies in elderly suicide prevention in Hong Kong. Key points The spatial variations of elderly suicides in Hong Kong show a much more complicated pattern compared with the simple "inner-city high suicide rate and suburban low" pattern in the Western countries and the "central low suicide rate and peripheral high" pattern in some of the Asian countries. In Hong Kong, suicide rates in the city centers were not higher than the average in the city. Clusters of higher suicide rates were mainly found in the New Territories, which is somewhat disconnected from the city and, in some inner-city neighborhoods, with high-density population. The spatial variations of suicide in the older adults in Hong Kong cannot be explained by the neighborhood Social Vulnerability Index as in the existing literature. Neighborhood service provision such as recreational services, daily necessity resources, and community centers played a significant role in affecting suicides in the older adults in Hong Kong.

Suicide ideation, suicide attempts, their sociodemographic and clinical associates among the elderly Chinese patients with schizophrenia spectrum disorders.

BACKGROUND: It is still unknown whether many well-identified risk factors of suicide could be applied to the elderly Chinese patients with schizophrenia. METHODS: 1-month suicidal ideation and lifetime suicide attempts together with their sociodemographic and clinical associates were analyzed by retrospective data on 263 elderly patients with schizophrenia spectrum disorders at the Kangning Hospital, Shenzhen, China. T-tests and Chi-square tests were used to examine the differences between patients with and without suicidality. Backward stepwise logistic regression was performed to identify the associated factors. RESULTS: Among the selected patients, 17.87% had 1-month suicide ideation and 7.60% had lifetime suicide attempts. It was further observed that the elderly patients with schizophrenia who had 1-month suicide ideation were more likely to report lifetime suicide attempts, suffer from severe hopelessness and negative symptoms, and have no pension. However, the backward stepwise logistic regression analyses revealed that lifetime suicide attempts and negative symptoms were most significantly associated with 1-month suicide ideation. In contrast, lifetime suicide attempters were more likely to be men, receive a pension, display symptoms of hopelessness, have longer duration of illness and poor family relationships. The regression analyses also indicated that only hopelessness, relatively long duration of schizophrenia, and poor family relationships were the most significantly associated with lifetime suicide attempts. LIMITATIONS: The retrospective design do not allow for causal inferences. CONCLUSIONS: Early interventions designed to decrease hopelessness, control negative symptoms, and improve family relationships may result in reduced risks of suicide among elderly Chinese patients with schizophrenia.

A study on household headship, living arrangement, and recipient of pension among the older adults in association with suicidal risks.

BACKGROUND: This study aims to examine whether variation in socioeconomic factors indicative of lower status within families in later life, such as the elderly losing their household headship, living with descendants, and having no pension are associated with suicidal risks among the older adults aged 60 years and above in the world. METHODS: Using the data from the Global Burden of Disease Study in 2015, the suicide age ratios (i.e., suicide rate ratios between older adults aged >=60 years versus the younger groups aged <60 years) for the 173 regions were computed and compared. The suicide age ratio rather than the actual rate is used to adjust the difference in base rates among different countries. Forest plots were performed to assess whether late-life status within families moderated the worldwide patterns of suicide age ratios. Regression analyses were used to estimate the extent to which the factors reflecting family status affect suicide age ratios. Gender-specific analyses were also performed. RESULTS: The results showed that higher suicide age ratios were significantly found in regions with lower percentages of the elderly being heads of households (ratios=1.69 vs 2.73, P<0.01), higher percentages of co-residence of the elderly with their descendants (ratios=2.72 vs 1.39, P<0.01), and lower percentages of the elderly receiving a pension (ratios=1.42 vs 2.76, P<0.01). In the adjusted regression, having no pension remained to be a significant determinant for both overall population (P = 0.01) and men (P<0.01) but not for women (P = 0.29), and loss of household headship was only significant for men (P = 0.05) but not for either overall population (P = 0.22) or women (P = 0.55), whereas the elderly living with their descendants was no longer significant for either overall population (P = 0.60) or both genders (men: P = 0.72; women P = 0.11). LIMITATIONS: The cross-sectional data do not allow to explore causal effect analyses. CONCLUSIONS: This is the first global study to reveal associations between lower socioeconomic status within families and higher rates of suicide among older adults aged 60 years and above compared with the younger population. Thus, the present ecological findings suggest that strategies to enhance the socioeconomic status of older adults may be important to prevent suicides in later life both within and across countries.

Neighborhood environment and cognitive function in older adults: A multilevel analysis in Hong Kong.

In considering the influence of the neighborhood environment on cognitive function, little research has looked beyond the individual factors. Here, we conducted a study on 21,008 older adults aged 65 years and above in Hong Kong to examine the cross-sectional associations of neighborhood economic disadvantage, recreational resources, walkability, library accessibility and physical activities on cognitive function and dementia. Both smaller and larger census tracts were adopted as proxies for neighborhoods. Using multilevel regression, neighborhood economic disadvantage was found to be associated with cognitive decline, net of individual features. This association was not explained by neighborhood built environment. Recreational environment was not a significant factor for older adults' cognitive function while library accessibility was. Neighborhood walkability was only related to dementia but not the cognitive function score. Physical activity can partly explain the relationship between neighborhood environment and cognitive function. No significant interaction effect was identified except on the educational level and neighborhood library accessibility. To conclude, late life residential environments are important contexts for aging. Aging-in-place interventions in Hong Kong should thus address neighborhood poverty, improve accessibility of libraries and walkability to reduce future risks of cognitive decline.