Clinical Research Directory

Inclusion Criteria: * Included participants with normal regular menses prior to LNG-IUS insertion * Included participants of any age, race, ethnicity, or parity * Contained bleeding and/or spotting data on the 52 mg (20 mg/d) LNG-IUS * Collected daily menstrual bleeding data from written diaries for at least 90 consecutive days Exclusion Criteria: * Heavy or prolonged menstrual bleeding (menorrhagia) * Actively breastfeeding * Hormonal long-acting reversible contraceptive method (LNG-IUS, implant) within 3 months of enrollment * Hormonal injectable contraceptive use within 6 months of enrollment * First 3 months (90 days) of data from women with postpartum or postabortion LNG-IUS insertions * Any anatomical or pathological condition (ie, uterine fibroids) that may have an impact on baseline menstrual bleeding pattern