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- W2889003887 abstract "Heavy menstrual bleeding is a leading cause of copper intrauterine device discontinuation. Thus, girls and women with heavy baseline menstrual bleeding may be at increased risk for early copper intrauterine device discontinuation.Our objective was to assess if there was an association between baseline menstrual bleeding pattern prior to intrauterine device insertion and discontinuation rate at 12 months among study participants who chose copper intrauterine device at baseline.We performed a secondary analysis of the Contraceptive CHOICE Project, a prospective observational cohort study of 9256 girls and women offered no-cost contraception for 2-3 years. Included in our study were participants who chose copper intrauterine device for contraception and for whom method continuation data at 12 months were available. Prior to contraception initiation, participants were asked to qualify their menstrual bleeding over the past year as: light, moderate, moderately heavy, or heavy. Light bleeding corresponded to using ≤10 pads/tampons per period. Moderate, moderately heavy, and heavy bleeding corresponded to 11-20 pads/tampons, 21-30 pads/tampons, and >30 pads/tampons per period, respectively. Subjects were then categorized into either a heavy baseline group (those reporting moderately heavy or heavy bleeding at baseline), or a not heavy group (those reporting light or moderate bleeding). The 12-month continuation rate for each group was then calculated using Kaplan-Meier survival function, and hazard ratio for risk of discontinuation was evaluated using a Cox proportional hazard model to determine if moderately heavy or heavy bleeding at baseline was associated with early discontinuation.Of the 918 girls and women meeting the inclusion criteria for this analysis, 165 were in the heavy baseline bleeding group, while 753 were in the not heavy bleeding group. The 12-month continuation rates for groups were similar: 80.2% (heavy) and 85.0% (not heavy; P = .24). Patients reporting either moderately heavy or heavy baseline bleeding were not at increased risk for early discontinuation of copper intrauterine device (hazard ratio, 1.21; 95% confidence interval, 0.88-1.66). Our sample size provided >90% power to detect a clinically important difference of 15% (assuming 20% discontinuation rate in not heavy bleeding group and a 35% discontinuation rate in the heavy bleeding group).We did not find that girls and women who reported baseline moderately heavy or heavy menstrual bleeding were at increased risk for early discontinuation. Thus, we do not believe that girls and women with heavy menstrual bleeding should be discouraged from using this safe and highly effective form of contraception." @default.
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- W2889003887 date "2018-11-01" @default.
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- W2889003887 title "Effect of baseline menstrual bleeding pattern on copper intrauterine device continuation" @default.
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- W2889003887 doi "https://doi.org/10.1016/j.ajog.2018.08.028" @default.
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