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Demographics of study completers.
| Starting arm: OCPs | Starting arm: Placebo | |
|---|---|---|
| Age (years, mean ± SD) | 28.8 ± 3.02 | 28.2 ± 4.43 |
| Years of education (mean ± SD) | 15.2 ± 1.56 | 15.7 ± 2.21 |
| Self-identified ethnic background | ||
| More than one ethnicity: | 2 | 4 |
| Asian: | 3 | 1 |
| Black: | 2 | 4 |
| Hispanic: | 4 | 1 |
| White: | 5 | 6 |
