TABLE 6.
Estimate* of median active phase and second stage of labor in hours by length of latent labor
| Nulliparous women | Multiparous Women | |||
|---|---|---|---|---|
| Stage of labor | Latent labor duration < mean | Latent labor duration ≥ mean | Latent labor duration < mean | Latent labor duration ≥ mean |
| Active labor | 5.75 h | 8.00 h | 5.25 h | 8.25 h |
| Second-stage labor | 1.48 h | 1.90 h | 0.53 h | 1.17 h |
Note:
*
Estimate from model-based prediction for women: <35 y of age, middle 80th percentile of height, normal BMI, weight gain within CDC guidelines, partnered, no diabetes, no PROM, no GBS, birthweight AGA, term delivery.