Not All Women Who Experience Side Effects Discontinue Their Contraceptive Method: Insights from a Longitudinal Study in India.

Side effects are a primary reason why women stop using contraception, even though they may still want to avoid a pregnancy. The Demographic and Health Surveys (DHS), the largest source of nationally representative data on contraceptive discontinuation, only asks women who discontinued a method their reasons for discontinuation, for which side effects is an option. Yet, side effects are also experienced by continued users. Using longitudinal data collected from a cohort of contraceptive users in Odisha and Haryana, India, this study explores the effect of side effect severity and frequency on six-month discontinuation. Among women who experienced side effects of their enrollment method, 49.7 percent continued to use it by the six-month interview. Women who experienced moderate/severe side effects infrequently were 67 percent (adjusted odds ratio [AOR]: 0.33; 95 percent confidence interval [CI]: 0.16-0.64) less likely to discontinue the enrollment method compared to women who experienced moderate/severe side effects always. Women who experienced mild side effects were even less likely to discontinue (AOR: 0.15; 95 percent CI: 0.06-0.37). Study results suggest side effect severity and frequency are more important factors than simply the experience of a side effect in understanding contraceptive discontinuation. DHS and other national surveys should expand their exploration of side effects to include questions asked of current users.