investigated. Method: Ninety-six women (17 first-time OC users, 34 long-time users, and 45
never-users) completed the Positive and Negative Affect Schedule (PANAS) and the
Menstrual Distress Questionnaire (MDQ) daily for 35 days. This study was the first to
examine positive affect variability; and personal family psychiatric history; and to compare
early-, late-, and never-users of OCs. Results: Triphasic users experienced greater variability …