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The Influence of Personality Characteristics and Negative Life Events During Adolescence on Depression in Young
Eirunn Skaug1, Trine Waaktaar1, Svenn Torgersen1
1University of Oslo Department of Psychology, Norway.
Abstract:
This study examined the influence of personality and negative life events during adolescence on depression in young adulthood, and the extent to which common genetic and environmental influences contributed to these associations. The data come from a Norwegian population based twin sample (N = 3,394). Depression was predicted by higher neuroticism and loneliness, as well as lower sense of coherence, self-efficacy, and resilience. Additionally, weak positive associations were found between negative life events and depression. Common genetic influences accounted for most of the phenotypic associations between depression and both personality and negative life events. The findings emphasize the importance of assessing personality characteristics early in adolescence, as they may serve as vulnerabilities for the development of depression later in life.
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