Trends in the Link Between Perceived Social Support and Life Satisfaction in Adolescents (2013/14-2021/22): A Cross-National Study.

Objectives: This repeated cross-sectional study aimed to (a) report trends in adolescents' perceived family, friend, classmate, and teacher support, (b) estimate the extent to which each source of support related to life satisfaction across space and time, and (c) ascertain whether sociodemographic factors moderated the relationship in question. Methods: We relied on data pertaining to the 2013/14, 2017/18, and 2021/22 waves of the Health Behaviour in School-aged Children study. The examined sample covered 44 countries and regions (n = 716,083; M AGE = 13.6; SD AGE = 1.64; 50.7% female). Results: The level of all sources of perceived social support slightly decreased over the examined period (all ω2 < .01). Family support involved the largest association with life satisfaction (ß = 0.16); friend support, the lowest one (ß = 0.03). These associations varied only tenuously across space and time. Sociodemographic factors moderated the link between perceived social support and life satisfaction to a negligible-to-weak extent. Conclusion: Levels of perceived social support and their associations with life satisfaction subtly changed. Future research may attempt to pinpoint the macrosocial levers of these temporal dynamics.

Behavioral and neural responses to social exclusion in women: the role of facial attractiveness and friendliness.

The behavioral and neural responses to social exclusion were examined in women randomized to four conditions, varying in levels of attractiveness and friendliness. Informed by evolutionary theory, we predicted that being socially excluded by attractive unfriendly women would be more distressing than being excluded by unattractive women, irrespective of their friendliness level. Our results contradicted most of our predictions but provide important insights into women's responses to interpersonal conflict. Accounting for rejection sensitivity, P300 event-related potential amplitudes were largest when women were excluded by unattractive unfriendly women. This may be due to an expectancy violation or an annoyance with being excluded by women low on social desirability. An examination of anger rumination rates by condition suggests the latter. Only attractive women's attractiveness ratings were lowered in the unfriendly condition, indicating they were specifically punished for their exclusionary behavior. Women were more likely to select attractive women to compete against with one exception-they selected the Black attractive opponent less often than the White attractive opponent when presented as unfriendly. Finally, consistent with studies on retaliation in relation to social exclusion, women tended to rate competitors who rejected them as being more rude, more competitive, less attractive, less nice, and less happy than non-competitors. The ubiquity of social exclusion and its pointed emotional and physiological impact on women demands more research on this topic.

The effect of aggressive group norms on young adults' conformity behavior in WhatsApp chats: a vignette-based experiment.

Social networking and messaging applications, such as WhatsApp, have become an essential social environment for adolescents and young adults (AYA). While facilitating connectivity, they also bear hazards, including cyber-aggression. This study investigates the impact of (aggressive) group norms on AYA's propensity to expect cyberaggressive behaviors within different group chats. Based on a vignette scenario, realistically simulated WhatsApp group chats enabled scrutinizing, if and how exemplary reactions (funny, aggressive, friendly) of group members influence AYA's conformity to cyber-aggression (N = 500, aged 16 to 29). Additionally, we examined the effect of chat group type-close friends versus fellow students-on the anticipation of aggressive reactions. Sociodemographic, social, and developmental-psychological factors were evaluated for potential effects. Multilevel logistic regression analyses indicated that aggressive group norms significantly predict cyber-aggression anticipation, while no effect of chat group type was observed. Controlling for the size and vivacity of participant's friend group, gender, age, and educational status were significant predictors: males, younger participants, and non-university students expected higher levels of cyber-aggression conformity. This study underlines the importance of group dynamics on perceptions of cyber-aggression and hints at individual risk factors for AYA's digital communication behavior.

Development and Validation of the Companion's Satisfaction Questionnaire of Patient's Hospitalized in Intensive Care Units.

Objective: The current study aimed to develop and validate of companions' satisfaction questionnaire of patients hospitalized in ICUs. Methods: This is a methodological study that was performed in three phases: In the first phase, the concept of companion's satisfaction of patients hospitalized in ICUs was defined through qualitative content analysis method. In the second phase, early items of questionnaire were generated based on findings of the first phase. In the third and final phase, validation of the questionnaire was evaluated using face, content and construct validity as well as reliability. Results: In exploratory factor analysis, three subscales including: satisfaction with nursing staff communication (5 items), satisfaction with nursing care (12 items), and satisfaction with decision making (5 items) were extracted by Eigen value above one and factor load above 0.5. Internal consistency and stability of the developed questionnaire confirmed with 0.94 and 0.95 respectively that indicated acceptable reliability. Conclusion: The 22-item developed questionnaire is valid and reliable for measurement of levels of companion's satisfaction of Iranian patients hospitalized in ICUs.

Social networks, social determinants, and mortality: Western New York Exposures and Breast Cancer study.

BACKGROUND: There are few studies of social support and other social determinants of health after breast cancer diagnosis and their associations with mortality; results have been inconclusive. Further, it is not known if observed associations are specific to women with breast cancer diagnosis or if associations would be similar among healthy women. METHODS: Women with incident, pathologically confirmed invasive breast cancer, stage I-IV (n = 1012), and healthy frequency age-matched participants (n = 2036) answered a social support questionnaire in prospective follow-up of a population-based case-control study, the Western New York Exposures and Breast Cancer Study. At interview, all participants were aged 35-79 years and resident of 2 counties in Western New York State. Mortality status was ascertained from the National Death Index. Participants were queried regarding the number of their close friends, frequency of seeing them, household size, household income, and marital status. Hazard ratios (HRs) and 95% confidence intervals (CIs) for breast cancer-specific mortality (breast cancer women only) and all-cause mortality were estimated. RESULTS: Lower household income was associated with higher all-cause mortality among women diagnosed with breast cancer (HR = 2.48, 95% CI = 1.24 to 4.97) and similarly among the healthy women (HR = 2.63, 95% CI = 1.25 to 5.53). Number and frequency of seeing friends, marital status, and household size were not associated with mortality, either among breast cancer patients or among healthy women. CONCLUSION: Among those diagnosed with breast cancer and healthy women, lower income was associated with more than twice the mortality. Marital status, household size, and number or frequency of meeting friends were not associated with survival.

The American Friendship Project: A report on the status and health of friendship in America.

Friendship is critical for individuals' well-being, but recent efforts to characterize Americans' friendship have suggested that these relationships are in peril. The present study is a report on the methods and results of three surveys from the American Friendship Project (AFP). The goal of the AFP is to be the most accurate and most complete account of American friendship as well as its health and change over time. The AFP reports on five critical facets of social health as it relates to friendship: 1) the structural factors of friendship (e.g., who are they, how many); 2) friendship quality (e.g., satisfaction, closeness); 3) social support from friends; 4) the quantity of online and offline communication; and 5) well-being (e.g., life satisfaction, loneliness, connection). Data was collected from two national samples of American adults in 2022 and 2023 and from a large sample of college students across three universities in 2022. The key finding from this investigation is, compared to the discouraging results of other recent surveys, Americans reported having more friends and fewer were friendless. AFP results also suggest that face-to-face (FtF) meetings among friends are quite common, as are telephone calls and text messaging. College student and adult samples reported very similar attitudes and experiences with friendship overall, but students were more likely to meet friends at school and to keep them for a shorter length of time. Another key finding is Americans long for greater closeness with friends; though over 75% were satisfied with the number of friends they had, over 40% felt they were not as close to their friends as they would like. Overall, the AFP is a rich source of data that can be used to answer a multitude of questions about friendship and its connection to well-being.

Friendships and peer relationships and self-harm ideation and behaviour among young people: a systematic review and narrative synthesis.

Friendships and peer relationships have an important role in the experience of self-harm ideation and behaviour in young people, yet they typically remain overlooked. This systematic review and narrative synthesis explores the extant literature on this topic to identify important relationships between these constructs. We did a keyword search of peer-reviewed empirical articles relating to friendships and peer relationships and self-harm ideation and behaviour in young people (aged 11-25 years). We identified 90 articles with evidence primarily from adolescents aged 11-18 years, including mixed genders and a majority of White individuals. Findings highlight substantive relationships between the key constructs, showing that: characteristics of friends and peers, including their self-harm ideation and behaviour, relate to and predict ego self-harm ideation and behaviour; friends and peers are important sources of support; and evidence on causal mechanisms is scarce but highlights potential peer selection and influence processes. Studies of the friends and peers of young people with self-harm ideation and behaviour highlight that: friends' attitudes to self-harm and suicide influence their responses to peers with self-harm ideation and behaviour; and friends who are bereaved and friend supporters experience negative outcomes such as symptoms of depression, anxiety, PTSD, and grief, alongside difficult emotions. Despite substantial heterogeneity across samples, study designs, and definition or measurement of the primary constructs, this work presents an initial step in organising a complex literature on a crucially important topic, which can help to inform future research and evidence-based interventions.

When TV neighbours become good friends: Understanding Neighbours fans' feelings of grief and loss at the end of the series.

Fans may experience significant upset and distress when a television series ends. However, grief and loss reactions to the end of a fictional series have seldom been investigated. It is likely that the degree to which such reactions are felt is influenced by viewing motives (e.g., pleasure, meaning making), connection to the series and its fan community, relationships formed with characters, including parasocial bonds and experiences of empathy, and tendency to engage with others' perspectives and emotions, including fictional characters. The purpose of this study was to examine predictors of fans' grief and loss reactions to the end of the television series Neighbours, which aired from 1985 to 2022. Fans (n = 1289) completed an online survey shortly after the screening of the final episode. The survey measured grief emotions and cognitions, acceptance that the series had ended, distress at the loss of a parasocial relationship with a favourite character, feelings of closure, and expressions of gratitude for the series. Predictors of these grief and loss reactions examined in the survey were viewing motives, fan identity, strength of a parasocial relationship formed with a favourite character, empathy towards that character, and tendency to take others' perspectives, experience empathic concern and personal distress, and tendency towards engagement with fictional characters. Greater grief and loss reactions were experienced by fans whose motives for watching involved being entertained and exposed to different lifestyles, who felt a stronger fan connection to the series, and who formed stronger parasocial empathic relationships with their favourite character. Factors such as gender, age, and empathic tendencies predicted various types of grief reactions. Understanding fan experiences when a long-running series ends advances theory and research on viewer parasocial relationships and engagement with media, as well as providing evidence that the loss of a series or favourite character can be viewed as a type of grief experience.

Wayfinding in pairs: comparing the planning and navigation performance of dyads and individuals in a real-world environment.

Navigation is essential to life, and it is cognitively complex, drawing on abilities such as prospective and situated planning, spatial memory, location recognition, and real-time decision-making. In many cases, day-to-day navigation is embedded in a social context where cognition and behavior are shaped by others, but the great majority of existing research in spatial cognition has focused on individuals. The two studies we report here contribute to our understanding of social wayfinding, assessing the performance of paired and individual navigators on a real-world wayfinding task in which they were instructed to minimize time and distance traveled. In the first study, we recruited 30 pairs of friends (familiar dyads); in the second, we recruited 30 solo participants (individuals). We compare the two studies to the results of an earlier study of 30 pairs of strangers (unfamiliar dyads). We draw out differences in performance with respect to spatial, social, and cognitive considerations. Of the three conditions, solo participants were least successful in reaching the destination accurately on their initial attempt. Friends traveled more efficiently than either strangers or individuals. Working with a partner also appeared to lend confidence to wayfinders: dyads of either familiarity type were more persistent than individuals in the navigation task, even after encountering challenges or making incorrect attempts. Route selection was additionally impacted by route complexity and unfamiliarity with the study area. Navigators explicitly used ease of remembering as a planning criterion, and the resulting differences in route complexity likely influenced success during enacted navigation.

Direct and indirect estimation of adolescent sexual intercourse and contraceptive use in Rajasthan India: an application of the best friend methodology.

BACKGROUND: Existing estimates of adolescent sexual and reproductive health (ASRH) behaviors may be a gross undercount given the sensitivity of this behavior in Indian culture. The objective of this study was to estimate ASRH behaviors in Rajasthan, India using direct questions and the best friend approach that seeks to reduce social desirability bias. METHODS: We used population-based data of adolescents aged 15-19 in Rajasthan collected between September and December 2022. Data include whether the respondent and her closest female friend ever had a partner, ever had sex, ever used contraception, and were currently using contraception. We estimated respondent and best friend ASRH outcomes separately, overall and among unmarried adolescents for whom we anticipate social desirability bias is greatest. RESULTS: The best friend approach performed well, with method assumptions largely met even before adjustments. Respondent and best friend estimates were similar among all adolescents except for current contraceptive use, which was higher for friends (though not significantly so). However, we observed large differences in ASRH behaviors between unmarried respondents and friends, with a significantly higher percentage of friends who ever had a partner (4.3% respondents, 11.6% friends), and a slightly higher percentage who ever had sex (2.4%, 3.8%) and who were currently using contraception (17.0%, 19.7% among those in need of contraception). CONCLUSIONS: We observed potential benefits of using the best friend methodology in estimating premarital sexual activity, but further work is needed to refine social network-based measures of sensitive adolescent behaviors in larger study samples to better understand ASRH needs.

Seeing the teacher through my peers' eyes? A social network study on adolescents' teaching quality perceptions.

BACKGROUND: Prior research has documented the pervasive influence that peers can exert on adolescents' lives. However, knowledge on whether adolescents' perceptions of the quality of the teacher's instruction are also prone to peer influences is lacking. METHOD: This study (N = 248 German adolescents) used longitudinal social network analysis to investigate whether (a) friends become more similar in their teaching quality perceptions (influence effects) and/or whether (b) students with initially more similar perceptions of teaching quality were more likely to become friends (selection effects). We also explored whether (c) students with more positive teaching quality perceptions were better integrated socially. RESULTS: We did not find support for influence or selection effects. However, students who rated their teacher's instruction more positively were better integrated socially. CONCLUSIONS: Our work adds to research on the role of peers in adolescence and enhances our understanding of peer influences on students' perceptions of instruction.

Learning About Sex from Different Sources: Implications for Sexual Attitudes, Sexual Knowledge, and Risky Sexual Behavior Among U.S. College Students.

This exploratory cross-sectional study, guided by primary socialization theory, examined relations between four primary socialization agents of sexual learning (i.e., mothers, fathers, friends/peers, and online media) and sexual attitudes, sexual knowledge, and risky sexual behavior. Latent-variable structural equation models were tested using self-report data obtained from 515 emerging adults who had spent at least 6 months attending in-person college classes. Results showed that learning about sex from mothers was associated with more conservative sexual attitudes and lower risky sexual behavior. Sexual learning from friends/peers was linked to liberal sexual attitudes and greater sexual knowledge. Learning from online media was associated with increased sexual knowledge. To account for a shift in sexual learning patterns from before to after entry to college, we created algebraic difference scores for each source of sexual information. Greater reliance on sexual learning from friends/peers in the past 6 months of college relative to before college was associated with liberal sexual attitudes and greater sexual knowledge. Additional analyses revealed different effects of learning about sex from mothers more during college than before college between those living on campus vs. commuters living at home. The discussion emphasizes the different role that each of the primary socialization agents plays for emerging adults' sexual development, including the protective role of mothers against risky sexual behavior, the impact of friends and peers on sexual attitudes and knowledge, and the shifting dynamics of socialization processes during college.

Early adolescent perceived friendship quality aids affective and neural responses to social inclusion and exclusion in young adults with and without adverse childhood experiences.

Friendships increase mental wellbeing and resilient functioning in young people with childhood adversity (CA). However, the mechanisms of this relationship are unknown. We examined the relationship between perceived friendship quality at age 14 after the experience of CA and reduced affective and neural responses to social exclusion at age 24. Resilient functioning was quantified as psychosocial functioning relative to the degree of CA severity in 310 participants at age 24. From this cohort, 62 young people with and without CA underwent functional Magnetic Resonance Imaging to assess brain responses to social inclusion and exclusion. We observed that good friendship quality was significantly associated with better resilient functioning. Both friendship quality and resilient functioning were related to increased affective responses to social inclusion. We also found that friendship quality, but not resilient functioning, was associated with increased dorsomedial prefrontal cortex responses to peer exclusion. Our findings suggest that friendship quality in early adolescence may contribute to the evaluation of social inclusion by increasing affective sensitivity to positive social experiences and increased brain activity in regions involved in emotion regulation to negative social experiences. Future research is needed to clarify this relationship with resilient functioning in early adulthood.

Reasons for multiple tobacco product and cannabis co-use among Texas young adults.

OBJECTIVE: This study examines differences in reasons for e-cigarette, cigarette, and cannabis use across exclusive, dual, co-, and poly co-users. METHODS: Participants were 645 young adults who reported past 30-day (P30D) use of e-cigarettes, cigarettes, or cannabis at wave 14 (Fall, 2021) of the Texas Adolescent Tobacco Marketing and Surveillance System (TATAMS). Exclusive users reported P30D use of one product, dual users reported P30D use of e-cigarettes and cigarettes, co-users reported use of cannabis and one tobacco product, and poly co-users reported P30D use of all three products. Participants were asked if they agreed with a series of reasons for using their respective products. Multinomial logistic regression analyses were conducted to examine associations between reasons for use and pattern of use, controlling for sex, race/ethnicity, and lifetime product use. RESULTS: 26.36 % of P30D users reported cannabis and tobacco use. Poly co-users were more likely to report using e-cigarettes because their friends do than e-cigarette co-users (aRRR = 2.64; 95 %CI = 1.19-5.83) and dual tobacco users (aRRR = 5.11; 95 %CI = 1.73-15.12). Poly co-users were more likely to smoke cigarettes while drinking alcohol (aRRR = 4.68; 95 %CI = 1.06-20.72) or to experience a pleasurable buzz (aRRR = 5.48; 95 %CI = 1.62-18.57) than exclusive cigarette users. Poly co-users more often reported using cannabis for taste (aRRR = 3.13; 95 %CI = 1.51-6.51), because their friends use it (aRRR = 2.19; 95 %CI = 1.08-4.42), and while drinking alcohol (aRRR = 2.13; 95 %CI = 1.03-4.41) than exclusive cannabis users. CONCLUSIONS: Given that reasons for use differ significantly among types of multiple product users and exclusive users, interventions should be tailored to address the specific tobacco and cannabis use practices of young adults.

The cost of providing care by family and friends (informal care) in the last year of life: A population observational study.

INTRODUCTION: Little is known about replacement costs of care provided by informal carers during the last year of life for people dying of cancer and non-cancer diseases. AIM: To estimate informal caregiving costs and explore the relationship with carer and decedent characteristics. DESIGN: National observational study of bereaved carers. Questions included informal end-of-life caregiving into the 2017 Health Survey for England including estimated recalled frequency, duration and intensity of care provision. We estimated replacement costs for a decedent's last year of life valuing time at the price of a substitutable activity. Spearman rank correlations and multivariable linear regression were used to explore relationships with last year of life costs. SETTING/PARTICIPANTS: Adult national survey respondents - England. RESULTS: A total of 7997 adults were interviewed from 5767/9612 (60%) of invited households. Estimated replacement costs of personal care and other help were £27,072 and £13,697 per carer and a national cost of £13.2 billion and £15.5 billion respectively. Longer care duration and intensity, older age, death at home (lived together), non-cancer cause of death and greater deprivation were associated with increased costs. Female sex, and not accessing 'other care services' were related to higher costs for other help only. CONCLUSION: We provide a first adult general population estimate for replacement informal care costs in the last year of life of £41,000 per carer per decedent and highlight characteristics associated with greater costs. This presents a major challenge for future universal care coverage as the pool of people providing informal care diminish with an ageing population.

The mediating effect of depressive symptoms on the association between childhood friendship and physical function in middle-aged and older adults: Evidence from the China Health and Retirement Longitudinal Study (CHARLS).

BACKGROUND: This study examines the extent to which depressive symptoms mediate the link between childhood friendship (CF) and physical function among middle-aged and older adults in China. METHODS: China Health and Retirement Longitudinal Study (CHARLS) data were used; specifically, CHARLS life history survey (conducted from June 1-December 31, 2014) and follow-up health survey (conducted from July 1-September 30, 2015) data were used. The Sobel test, Bootstrap test and multivariable logistic regression were performed to examine the mediating role of depressive symptoms (measured by the 10-item Center for Epidemiologic Studies Depression Scale) in the association between CF (measured by a standardized retrospective questionnaire) and physical function, which was measured by basic activities of daily living (BADL) disability, instrumental activities of daily living (IADL) disability, and grip strength. RESULTS: A total of 12,170 participants aged 45 years or older were included in this cross-sectional study. After controlling for covariates, low-quality CF was associated with an increased prevalence of BADL disability (OR = 1.18; 95 % CI = 1.05-1.32), IADL disability (OR = 1.25; 95 % CI = 1.12-1.40), and low grip strength (OR = 1.21; 95 % CI = 1.09-1.34). The proportion of the mediating effect of depressive symptoms was 48 % for CF and BADL, 40 % for CF and IADL, and 11 % for CF and grip strength. Depressive symptoms and worse CF have a joint effect on BADL disability (OR = 3.30; 95 % CI = 2.82-3.85), IADL disability (OR = 3.52; 95 % CI = 3.03-4.09), and low grip strength (OR = 1.65; 95 % CI = 1.43-1.92). LIMITATIONS: Not all potential confounding factors (such as childhood behavioural problems, genetic factors, and memory function) were measured in the analysis, and there may have been recall bias in the retrospective collection of CF data. CONCLUSIONS: Individuals with high-quality CF were more likely to have a decreased prevalence of impaired physical function in later life. Depressive symptoms acted as a mediator associated with the development of CF.

Exposure to user-generated e-cigarette content on social media associated with greater vulnerability to e-cigarette use among youth non-users.

INTRODUCTION: Social media are important venues for youth's exposure to e-cigarette content. This study examined how exposure to user-generated e-cigarette content (i.e., content created and shared by individual social media users) is associated with vulnerabilities to e-cigarette use among youth non-users. METHODS: We pooled data from the 2021 and 2022 National Youth Tobacco Survey. Youth who have never used e-cigarettes were included. Weighted linear and logistic regressions were conducted to examine how exposure to user-generated e-cigarette content (from real-life friends, online-only friends, and celebrities/influencers) on social media was associated with e-cigarette use vulnerabilities measured by perceived norms, perceived risk, and susceptibility of use, controlling for demographics, advertising exposure, and mental health conditions. Multiple imputations were performed to account for missing data. RESULTS: Exposure to e-cigarette content on social media posted by real-life friends, online-only friends, and celebrities/influencers were associated with more positive descriptive norm (ßs = 1.56, 0.37, and 0.35, respectively, all ps < .001), more positive injunctive norm (ßs = 0.46, 0.19, and 0.10, respectively, all ps < .001), and higher odds of e-cigarette use susceptibility (ORs = 1.48, 1.50. 1.29, respectively, all ps < .001). Exposure to content posted by real-life and online-only friends were associated with reduced risk perception of e-cigarette use (ß = -0.04, p < 0.05 and ß = -0.07, p < 0.001). CONCLUSIONS: Our study highlighted that friends and celebrities/influencers are important sources on social media that can influence youth non-users' vulnerabilities to e-cigarette use. Interventional messages communicated through friends and influencers on social media may in turn help reduce e-cigarette vulnerability among youth non-users.

Internet Use and Loneliness Among Urban and Non-Urban Chinese Older Adults: The Roles of Family Support, Friend Support, and Social Participation.

OBJECTIVES: This study investigated the association between internet use and loneliness among older Chinese adults, and the mediating effects of family support, friend support, and social participation. These associations were evaluated in the context of urban and non-urban geographic settings. METHODS: This study used data from the 2018 wave of the China Longitudinal Ageing Social Survey (N = 10,126), examining samples of urban (n = 3,917) and non-urban (n = 6,209) older adults separately. Linear regression and path analysis within a structural equation modeling framework were employed. RESULTS: Internet use was negatively associated with loneliness for both urban and non-urban residing older adults. Family support and social participation mediated the association between internet use and loneliness for both urban and non-urban residing older Chinese adults, but friend support mediated this association only for urban older residents. DISCUSSION: This study shed light on our understanding of the relationship between internet use and loneliness among older adults in the Chinese context. Also, these findings suggested that digital interventions for loneliness should pay special attention to the different characteristics of urban and non-urban dwelling older Chinese adults.

Suicide attempts of friends and family during adolescence and long-term suicidal ideation and attempts: Findings from the 25-year Add Health study.

BACKGROUND: Suicide is a significant global public health concern. However, previous studies have predominantly focused on individual-level risk factors. Against this backdrop, microsystem suicide propinquity, which encompasses suicidal thoughts and behaviors (STB) within families and peer groups, is significant in elucidating the development and perpetuation of STB in adolescents. METHODS: This study utilized data from the National Longitudinal Study of Adolescent to Adult Health (Add Health, 1994-2018). Adolescents who reported instances of suicide attempts among their friends and family members during Wave 1 were selected (N = 4826). Generalized estimation equations (GEE) and structural equation models (SEM) were employed. RESULTS: GEE analyses indicated that individuals with friends who had attempted suicide exhibited higher risks for suicidal ideation (OR [95 % CI] = 2.57 [2.13, 3.11]) and suicide attempts (OR [95 % CI] = 2.47 [1.78, 3.42]). Also, individuals with family members who had attempted suicide exhibited higher risks for suicidal ideation (OR [95 % CI] = 2.37 [1.62, 3.46]) and attempts (OR [95 % CI] = 2.27 [1.17, 4.41]). However, friends' and family members' suicide attempts failed to show significant interactive effect. Besides, SEM analyses indicated that friends' and family members' suicide attempts were associated with one's long-term suicidal ideation and attempts via depressive symptoms. CONCLUSION: Suicide attempts of friends and family during adolescence were long-term risk factors for suicidal ideation and attempts from adolescence to young adulthood. Moreover, depressive symptoms served as long-term mechanisms in these associations.