ArticleSocial psychiatry and psychiatric epidemiology2026
Stability and change in social network size over four decades: an age-period-cohort analysis.
Article in Social psychiatry and psychiatric epidemiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeInterest in social networks has increased in recent decades amid concerns around social isolation and loneliness, despite increased access to social connections via electronics. Prior studies identified predictors and outcomes linked to network size, but few studies have examined age, period, and cohort effects simultaneously.
methodsUsing four decades of data, we assessed age, period, and cohort effects, as well as sociodemographic and personality factors, on family and friend network size. In 1981, 3,481 participants (M
resultsResults demonstrated that males, unmarried persons, and persons higher on neuroticism had smaller family networks; Non-White individuals and those higher on conscientiousness had smaller friend networks. Higher income, education, and extraversion predicted larger family and friend networks. No age or cohort effects were detected, though a period effect indicated larger friend networks during baseline data collection compared to other periods.
conclusionFindings suggest family and friend networks are shaped by demographic and personality traits but remain largely stable across time and generation.
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