Table 2.
Utilization after immediate vs delayed postpartum initiation of contraceptive implants at 3 and 6 months (intent to treat)
| Variables | Immediate | Delayed | Risk difference (95% Cl) | P value |
|---|---|---|---|---|
| 3 months postpartum | (n = 91),% | (n = 85, %) | ||
| Using implant at 3 mo | 90 (98.9) | 35 (41.2) | 57.7 (47.05—68.40) | < .001 |
| Using implant or other modern method at 3 monthsa | 91 (100) | 44 (51.8) | 48.2 (37.61—58.86) | < .001 |
| Using implant or other highly effective method at 3 monthsb | 91 (100) | 42 (49.4) | 50.6 (39.96—61.22) | < .001 |
| 6 months postpartum | (n = 96), % | (n = 87), % | ||
| Using implant at 6 mo | 93 (96.9) | 59 (67.8) | 29.1 (18.64—39.47) | < .001 |
| Using implant or other modern method at 6 moa | 95 (99.0) | 75 (86.2) | 12.8 (5.22—20.28) | .001 |
| Using implant or other highly effective method at 6 mob | 94 (97.9) | 70 (80.5) | 17.4 (8.65—26.27) | .001 |
| Pregnancies at 6 mo | 0(0) | 2 (2.3) | 2.3 (0.01—5.58) | .230 |
Data are presented as n (percentage) analyzed with a X2 or Fisher exact test.
CI, confidence interval; IUD, intrauterine device.
a
Modern methods include implant pill, injection, IUDs, condoms, sterilization (and lactational amenorrhea at 3 months)
b
Highly effective methods include implant, pill, injection, IUDs, and sterilization.
Averbach et al. Immediate initiation of postpartum contraceptive implants. Am J Obstet Gynecol 2017.