Prospective early adulthood risk factors for vasomotor symptoms in the Coronary Artery Risk Development in Young Adults study

OBJECTIVE: Previous studies have assessed potential risk factors for vasomotor symptoms (VMS) beginning in midlife. We examined whether early adulthood risk factors predict VMS trajectories over time. METHODS: We performed a secondary data analysis of the Coronary Artery Risk Development in Young Adults (CARDIA) study, a population-based cohort. We included women who answered questions about VMS at three or more examinations (n = 1,966). We examined whether risk factors at baseline (when participants were aged 18-30 y; average age, 25 y) and the year 15 (Y15) exam (at ages 33-45 y; average age, 40 y) were associated with VMS trajectories from Y15 through Y35. Logistic regression models were used to evaluate the associations with VMS trajectories. RESULTS: We identified three trajectories of VMS presence: minimal (40%), increasing over time (27%), and persistent (33%). Baseline factors associated with persistent VMS over time included Black race, less than a high school education, depressive symptoms, migraines, cigarette use, and at Y15 hysterectomy. Baseline factors associated with increasing VMS over time included Black race and lower body mass index. Risk factors for bothersome VMS were similar and also included thyroid disease, although thyroid disease was not associated with persistence of VMS over time. Associations were similar among women who had not undergone hysterectomy and in Black and White women. CONCLUSIONS: Risk factors for VMS may be identified in early adulthood. Further examination of risk factors such as migraines and depressive symptoms in early adulthood may be helpful in identifying therapies for VMS.