Self-rated mental health in the transition to adulthood predicts depressive symptoms in midlife.

Self-rated mental health (SRMH), a single item asking individuals to evaluate their mental or emotional health, is included in some surveys as an indicator of risk for mental disorders and to monitor population health, yet little longitudinal research examines how well it predicts future outcomes. Following a life course perspective, the current longitudinal study of 502 Canadian high school seniors tracked into midlife examined to what extent SRMH at ages 20, 25, and 32 years predicted depressive symptoms at ages 43 and 50. Hierarchical linear regressions showed that lower SRMH at age 25 and at 32 years was a significant predictor of higher levels of depressive symptoms at ages 43 and 50, even when controlling for sex, participant education, marital/cohabitation status, self-rated physical health, and baseline depressive symptoms. The results provide evidence that SRMH assessed during the transition to adulthood may be useful as a broad and powerful measure of risk for mental health problems decades into the future.