Table 2.
Numbers of successful patients with regard to inhibition and delivery data in nifedipine and placebo groups
| Outcome | Nifedipine | Placebo | RR | Adjusted RRa | 95% CI | NNT |
|---|---|---|---|---|---|---|
| Successful at 90 minutes, n (%) | 91/103 (88.3%) | 72/103 (69.9%) | 1.18 | 1.27 | 1.10–1.47b | 5.6 |
| Successful after 48 hours, n (%) | 80/103 (77.6%) | 51/103 (49.5%) | 1.57 | 1.52 | 1.22–1.91b | 3.6 |
| Delayed delivery ≥48 hours, n (%) | 93/103 (90.3%) | 90/103 (87.4%) | 1.03 | 1.05 | 0.95–1.15 | 34.3 |
| Delivery ≥37 weeks, n (%) | 73/99 (76.7%) | 77/103 (74.8%) | 0.99 | 1.01 | 0.91–1.12 | 98.8 |
Notes:
a
Adjusted for gravid and previous abortion.
b
Statistically significant.
Abbreviations: CI, confidence interval; RR, relative risk; NNT, number needed to treat.