TABLE 3.
Primary and secondary outcomes in nulliparous patients
| Outcome | Lower physical activity (n=257) Reference | Higher physical activity (n=87) | Pvalue | RR (95% CI) | aRR (95% CIa) |
|---|---|---|---|---|---|
| Duration of second stage, h | 1.32 (1.20) | 1.98 (3.10) | .10 | ||
| Duration of active labor, h | 9.17 (6.66) | 6.98 (6.15) | .02b | ||
| Prolonged first stage | 74 (28.8) | 12 (13.8) | .01b | 0.48 (0.27–0.84)b | 0.51 (0.27–0.84)b |
| Prolonged second stage | 25 (9.7) | 10 (11.5) | .68 | 1.18 (0.59–2.36) | 1.27 (0.61–2.44) |
| Second-stage cesarean delivery | 10 (3.9) | 6 (6.9) | .25 | 1.77 (0.66–4.73) | 1.85 (0.65–4.84) |
| Operative vaginal delivery | 18 (7.0) | 4 (4.6) | .61 | 0.66 (0.29–1.89) | 0.66 (0.19–1.72) |
| All perineal lacerations | 154 (59.9) | 54 (62.1) | .80 | 1.04 (0.85–1.26) | 1.04 (0.85–1.23) |
| Severe perineal laceration | 13 (5.1) | 3 (3.4) | .77 | 0.68 (0.20–2.34) | 0.62 (0.14–1.86)c |
| PPH | 14 (5.4) | 3 (3.4) | .58 | 0.75 (0.19–2.15) | 0.62 (0.14–1.77) |
Data represent number (percentage) or mean (standard deviation).
aRR, adjusted relative risk; CI, confidence interval; PPH, postpartum hemorrhage; RR, relative risk.
a
Adjusted for obesity and epidural;
b
Clinically significant;
c
Adjusted only for obesity.