ArticleSocial psychiatry and psychiatric epidemiology2026
Genetic susceptibility to depressive symptoms in middle-aged to older Americans: time-varying effects and effect modification by early psychosocial factors.
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. Cited by 1 paper.
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1 citing paper in PubMed.
- Synergistic Effects of Early Psychosocial Factors and Polygenic Risk for Smoking: a Cross-Sectional Analysis of a Sample of Older Adults in the United States.Developmental psychobiology · 2026Article
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7 authors.
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Abstract
purposeWe examined age-varying genetic influences on depression across young adulthood to older adulthood and the moderating role of early psychosocial factors.
methodsData are from the Health and Retirement Study (HRS) with 6,977 European Americans (57% women) from 2006 to 2016 (M age 62.4 ± 14.3, range 26-101 years in 2006). The polygenic score (PGS) for major depression was operationalized as a binary variable at the 75th percentile. Early psychosocial factors examined included maternal warmth, parental education, perceived financial status, and childhood stressful events. Depressive symptoms were measured by the Center for Epidemiological Studies Depression Scale (CES-D; range: 0-8). We utilized time-varying effect modeling to determine the survey wave when genetic risk most affected depressive symptoms. Within this wave, we analyzed the age-varying effect of genetic risk on depressive symptoms and conducted interaction analyses between PGS with each early psychosocial factor.
resultsThe wave-varying effect model revealed that the genetic effect was strongest in 2006. During that year, genetic effects remained significant and stable across age groups, from middle-aged to older adults. In 2006, without negative experiences, those at high genetic risk for depression had 51-60% higher odds of depressive symptoms (CES-D ≥ 3). Conversely, without genetic risk, adverse early psychosocial factors raised depression risk by 37-54%. No multiplicative or additive interaction was observed between genetic risk and psychosocial factors.
conclusionIdentifying individuals with higher genetic susceptibility and adverse early experiences may inform targeted preventive approaches.
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