Larger Social Network Size Research Articles

EFFECTS OF SOCIAL SUPPORT NETWORK ON AMERICAN OLDER ADULTS’ MEMORY FUNCTIONS

Background: Previous studies have found older adults’ cognitive functions are strongly associated with their social networks, including memory. Yet, few studies have explored the influences of specific social network members, such as siblings and children. Further, little studies examined the impact of the size of older adults’ social networks. Hence, this study aimed to investigate how older adults’ relationships with their spouses, siblings, and children, as well as the size of their social networks, affect American older adults’ memory functions. Methods: Using the 2018 data from NHATS, 5547 samples were included. We adopted a multiple logistic regression model to test the impact of social support network sizes, and how associations of social support networks varied between spouses, siblings, and children. All models were calibrated for age, gender, education, income, and race/ethnicity. Results: Analysis showed that higher socioeconomic status (more education and without Medicaid), being female, and younger age were associated with increased odds of having good self-rated memory functions. Older adults with larger social support networks (>=3 individuals) were more likely to have better self-rated memory function (adjusted odds ratio, 1.182, p<0.05), while holding other variables. Having a spouse also increased odds of higher self-rating memory function, in contrast to having children. Conclusion: This study highlighted the importance of having a larger social network size for older adult’s memory function and indicated the necessity of developing intervention programs to expand older adults' social network size, especially for those with lower socioeconomic status.

Social network characteristics and cognitive functioning in ethnically diverse older adults: The role of network size and composition.

Social engagement has been linked to preserved cognitive functioning in later life. While social engagement is often operationalized as social network size, social networks can vary not only in size, but also in composition. Previous work has found that having a greater proportion of family in a network is associated with worse socioemotional and cognitive outcomes compared to having a greater proportion of friends. In addition, social resources may differentially affect cognition in minority groups at higher risk of cognitive impairment. Therefore, the current study aimed to examine racial/ethnic differences in the relationship between network characteristics and cognition. Ethnically and racially diverse older adults from the Washington Heights-Inwood Columbia Aging Project (n = 548, 60-93 years) were used. Multiple regressions were conducted to examine the effects of ethnicity/race, size, composition, and their interaction on global cognition. Analyses revealed that networks with a greater proportion of friends were associated with better global cognition than networks with a greater proportion of family. Additionally, larger social network size was only associated with better global cognition among individuals who had a greater proportion of friends in their networks. Race further moderated this effect, as it was limited to African Americans. Overall, these findings highlight the importance of looking at both composition and size when examining the relationship between social network characteristics and global cognition. These findings suggest that friendships may be especially important and further suggest that social network characteristics and cognitive aging may be more strongly related among African Americans. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Abstract A84: Perceived Social Support Moderates the Associations between Race-Based Medical Suspicion and Perceptions of Cancer Treatment

Abstract Background: Decades of research have demonstrated the salutary effects of higher perceived social support on thoughts and feelings about one's health. Separate work has shown that Black patients with higher race-based medical suspicion have more negative perceptions of their healthcare. Prior studies have not systematically investigated the extent to which perceived social support is related to medical suspicion in Black cancer populations. Purpose: We specifically explored whether larger social network size and higher social support satisfaction moderated negative perceptions and feelings typically experienced by Black patients scoring high on suspicion. Methods: 114 Black cancer patients reported their social support and suspicion at a baseline session. One week later, they interacted with their oncologist about initial treatment options during a clinic visit. Following the interaction, patients reported their uncertainty regarding the recommended treatment, perceived difficulty completing treatment, and distress. Results: Moderation results showed that larger social network size was related to less uncertainty and less perceived difficulty completing treatment for Black patients low in suspicion. However, larger social network size failed to reduce uncertainty and perceived difficulty and exacerbated distress for Black patients high in suspicion. Social support satisfaction moderated only the relation between medical suspicion and perceived difficulty. Conclusions: Social support is associated with distinct cancer treatment perceptions for Black cancer patients as a function of patients' suspicion, which may be explained by entrenchment in a social network that reinforces negative personal biases. Citation Format: Sarah C. E. Stanton, Louis A. Penner, Susan Eggly, Felicity W. K. Harper, Lauren M. Hamel, Tanina Foster, Michael S. Simon, Ellen Barton, Robert A. Chapman, Terrance L. Albrecht. Perceived Social Support Moderates the Associations between Race-Based Medical Suspicion and Perceptions of Cancer Treatment. [abstract]. In: Proceedings of the Ninth AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2016 Sep 25-28; Fort Lauderdale, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2017;26(2 Suppl):Abstract nr A84.

Offline Social Relationships and Online Cancer Communication: Effects of Social and Family Support on Online Social Network Building

ABSTRACTThis study investigates how social support and family relationship perceptions influence breast cancer patients’ online communication networks in a computer-mediated social support (CMSS) group. To examine social interactions in the CMSS group, we identified two types of online social networks: open and targeted communication networks. The open communication network reflects group communication behaviors (i.e., one-to-many or “broadcast” communication) in which the intended audience is not specified; in contrast, the targeted communication network reflects interpersonal discourses (i.e., one-to-one or directed communication) in which the audience for the message is specified. The communication networks were constructed by tracking CMSS group usage data of 237 breast cancer patients who participated in one of two National Cancer Institute-funded randomized clinical trials. Eligible subjects were within 2 months of a diagnosis of primary breast cancer or recurrence at the time of recruitment. Findings reveal that breast cancer patients who perceived less availability of offline social support had a larger social network size in the open communication network. In contrast, those who perceived less family cohesion had a larger targeted communication network in the CMSS group, meaning they were inclined to use the CMSS group for developing interpersonal relationships.

Determinants of Living Well With Aphasia in the First Year Poststroke: A Prospective Cohort Study

ObjectiveTo determine factors that contribute to living well with aphasia in the first 12 months poststroke. DesignProspective longitudinal cohort study. SettingHospitalized care, ambulatory care, and general community. ParticipantsA referred sample of people (N=58) with a first incidence of aphasia after stroke was assessed at 3, 6, 9, and 12 months postonset. Participants were recruited through speech-language pathologists in 2 capital cities in Australia. Presence of aphasia was determined through the Western Aphasia Battery-Revised by an experienced speech-language pathologist. InterventionsNot applicable. Main Outcome MeasuresThe main outcomes were the 5 domains of the Assessment for Living with Aphasia at 3, 6, 9, and 12 months poststroke. The independent variables included demographics, physical functioning, social network, mood, aphasia severity, and a self-rating of successfully living with aphasia at the same time points. Mixed effects modeling was used to determine which factors contributed to the trajectory of each of the 5 domains of participation, impairment, environment, personal factors, and life with aphasia. ResultsHigher household income, larger social network size, being a woman, and having milder aphasia were positively associated with the participation domain. Graduate or postgraduate educational levels, low mood, and poor physical functioning were negatively associated with the participation domain. Factors positively associated with other domains included higher income, self-ratings of successfully living with aphasia, and aphasia severity. Low mood was consistently negatively associated with all of the domains. ConclusionsPsychosocial determinants were the most significant predictors of living well with aphasia in the first 12 months postonset. Aphasia rehabilitation needs to attend more to these factors to optimize outcomes.

Hepatitis C virus seroprevalence among people who inject drugs and factors associated with infection in eight Russian cities.

BackgroundBehavioural surveillance among people who inject drugs (PWID) and testing for hepatitis C virus (HCV) and HIV is needed to understand the scope of both epidemics in at-risk populations and to suggest steps to improve their health.MethodsPWID were recruited using respondent-driven sampling (RDS) in eight Russian cities. A standardized survey was administered to collect sociodemographic and behavioral information. Blood specimens were obtained for serological testing for HCV and HIV-1. Data across the eight sites were pooled to identify individual-, network-, and city-level factors associated with positive HCV serostatus.ResultsAmong 2,596 PWID participating in the study, 1,837 tested positive for HCV (71%). The sample was 73% male and the mean age was 28. Very few PWID reported regular contact with harm reduction programs. Factors associated with testing positive for HCV were longer duration of injection drug use, testing positive for HIV-1, sharing non-syringe injection paraphernalia and water for rinsing syringes, and larger social network size. Factors negatively associated with HCV-positive serostatus were injecting with a used syringe and two city-level factors: longer mean RDS recruitment chain in a city and higher levels of injecting stimulants.ConclusionsHCV prevalence in all eight Russian cities is at the higher end of the range of HCV prevalence among PWID in Europe, which provides evidence that more resources, better prevention programs, and accelerated treatment targeting PWID are needed to control the HCV epidemic.

Myopathie squelettique associée à la sclérodermie systémique (ScS) : particularités cliniques et apport pronostique de la biopsie musculaire. Étude cas témoin

To determine factors that contribute to living well with aphasia in the first 12 months poststroke.Prospective longitudinal cohort study.Hospitalized care, ambulatory care, and general community.A referred sample of people (N=58) with a first incidence of aphasia after stroke was assessed at 3, 6, 9, and 12 months postonset. Participants were recruited through speech-language pathologists in 2 capital cities in Australia. Presence of aphasia was determined through the Western Aphasia Battery-Revised by an experienced speech-language pathologist.Not applicable.The main outcomes were the 5 domains of the Assessment for Living with Aphasia at 3, 6, 9, and 12 months poststroke. The independent variables included demographics, physical functioning, social network, mood, aphasia severity, and a self-rating of successfully living with aphasia at the same time points. Mixed effects modeling was used to determine which factors contributed to the trajectory of each of the 5 domains of participation, impairment, environment, personal factors, and life with aphasia.Higher household income, larger social network size, being a woman, and having milder aphasia were positively associated with the participation domain. Graduate or postgraduate educational levels, low mood, and poor physical functioning were negatively associated with the participation domain. Factors positively associated with other domains included higher income, self-ratings of successfully living with aphasia, and aphasia severity. Low mood was consistently negatively associated with all of the domains.Psychosocial determinants were the most significant predictors of living well with aphasia in the first 12 months postonset. Aphasia rehabilitation needs to attend more to these factors to optimize outcomes.

Un rôle des Heat Shock Protéines dans l'auto-immunité associée au VHC?

To determine factors that contribute to living well with aphasia in the first 12 months poststroke.Prospective longitudinal cohort study.Hospitalized care, ambulatory care, and general community.A referred sample of people (N=58) with a first incidence of aphasia after stroke was assessed at 3, 6, 9, and 12 months postonset. Participants were recruited through speech-language pathologists in 2 capital cities in Australia. Presence of aphasia was determined through the Western Aphasia Battery-Revised by an experienced speech-language pathologist.Not applicable.The main outcomes were the 5 domains of the Assessment for Living with Aphasia at 3, 6, 9, and 12 months poststroke. The independent variables included demographics, physical functioning, social network, mood, aphasia severity, and a self-rating of successfully living with aphasia at the same time points. Mixed effects modeling was used to determine which factors contributed to the trajectory of each of the 5 domains of participation, impairment, environment, personal factors, and life with aphasia.Higher household income, larger social network size, being a woman, and having milder aphasia were positively associated with the participation domain. Graduate or postgraduate educational levels, low mood, and poor physical functioning were negatively associated with the participation domain. Factors positively associated with other domains included higher income, self-ratings of successfully living with aphasia, and aphasia severity. Low mood was consistently negatively associated with all of the domains.Psychosocial determinants were the most significant predictors of living well with aphasia in the first 12 months postonset. Aphasia rehabilitation needs to attend more to these factors to optimize outcomes.