Pregnancy Data Among ENG-Releasing Implant Users Through 5 Years From McNicholas et al., 201717
| Year 4 | Year 5 | |
|---|---|---|
| No. of women | 223 | 102 |
| Woman-years of observation | 444.0 | |
| No. of pregnancies | 0 | 0 |
| Pregnancy rate per 100 woman-years (1-sided 97.5% CI) | 0 (0, 1.48) | 0 (0, 2.65) |
Abbreviations: CI, confidence interval; ENG, etonogestrel.