YAZ Post Authorization Safety Study (PASS)/Post Authorization Efficacy Study (PAES) in China

The primary objective is to assess the safety profile of YAZ in Chinese women, including adverse drug reactions (ADRs). The secondary objectives are to investigate the rate of unintended pregnancies, the cycle control for subjects with and without preceding abortion, the bleeding pattern of subjects with and without preceding abortion (including the abortion-related bleeding pattern) and the efficacy in moderate acne vulgaris. Another objective is to investigate the effect on dysmenorrhea.