Explorative evaluation of the impact of premenstrual disorder on daily functioning and quality of life.

Objectives: : To assess the effects of premenstrual disorders on health-related quality of life (HR-QOL), hobbies and social activities, and relationships with others in the multinational IMPACT study.

Methods: : Women aged 15-45 years were screened for suspected premenstrual dysphoric disorder (PMDD) and premenstrual syndrome (PMS) and invited to participate in this web-based study. Based on the Daily Record of Severity of Problems (DRSP), prospectively assessed over two observational cycles, participants were grouped into two categories: no perceived symptoms/mild PMS or moderate-to-severe PMS/PMDD.