S122. ASSOCIATION BETWEEN SEASON OF BIRTH AND PERSONALITY

Abstract Background Previous studies have shown that season of birth is one of the environmental variables and affects personality. The purpose of this study was to investigate the relationship between season of birth and personality in Korean college students. Methods A total of 2962 college students were included. The subjects were assessed with the Temperament and Character Inventory(TCI) and the Korean version of the Patient Health Questionnaire-9 (PHQ-9) for depressive symptoms, temperament, and personality traits. One-way ANOVA and linear regression analysis were used for statistical analysis. Results Men born in spring had lower novelty seeking (NS) (P = 0.018, P = 0.03) than men born in autumn and winter. In the case of spring, men decreased the propensity for extravagance vs reserve (NS3) (β = -0.91, p = 0.001). When men were born in autumn and winter, they increased disorientation vs regimentation (NS4) tendency (autumn: β = 0.76, p = 0.04, winter: β = 0.056, p = 0.043). Discussion In this study, we examined the effects of season of birth on personality, especially the relationship between season of birth and Novelty Seeking of Temperament and Character Inventory(TCI). In the Temperament and Character Inventory(TCI) scale, Novelty Seeking (NS) is associated with bipolar disorder, dependency disorder, and antisocial personality disorder. Further research is needed on season of birth, personality and mental illness.