title: Relation of social network characteristics to 5-year mortality among young-old versus old-old white women in an urban community.
abstract: This study examines age-related differences in the association between social network characteristics and mortality for aged white women. Subjects include a community-dwelling sample of white women aged > or = 65 years (n = 806), who lived in northeast Baltimore, Maryland, in 1984. Three characteristics of social networks were measured: availability of network resources; contact with network resources; and integration into the neighborhood. The association of social network with 5-year mortality was examined with a proportional hazards model adjusting for perceived health status, impairment in physical activities of daily living, number of chronic conditions, and years of education. Analyses were stratified by age (65-74 years, > or = 75 years). Elements of social network contact and neighborhood integration were associated with reduced mortality among women aged > or = 75 years, but not among women aged 65-74 years. In the > or = 75 years group, women who had no contact with children, friends, and group organizations showed hazard ratios (95% confidence intervals (CI)) of 3.1 (1.2-7.5), 2.2 (1.0-4.9), and 2.8 (1.2-6.5), respectively. Women who had lived < or = 10 years in the neighborhood and women who had no interaction with local merchants showed hazard ratios of 2.5 (95% CI 1.3-4.8) and 2.2 (95% CI 1.2-3.9), respectively. Thus, both age and specific aspects of network structure were found to influence the association between social networks and mortality in elderly women.
authors.affiliation: Department of Public Health, Kochi Medical School, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Yasuda
authors.forename: S I
authors.initials: SI
authors.lastname: Zimmerman
authors.forename: W
authors.initials: W
authors.lastname: Hawkes
authors.forename: L
authors.initials: L
authors.lastname: Fredman
authors.forename: J R
authors.initials: JR
authors.lastname: Hebel
authors.forename: J
authors.initials: J
authors.lastname: Magaziner
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015142:Baltimore / Q000453:epidemiology; D005260:Female; D006304:Health Status; D006801:Humans; D009026:Mortality / Q000639:trends*; D012917:Social Adjustment; D012944:Social Support; D014505:Urban Population / Q000706:statistics & numerical data*; D044465:White People