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Duration first stage of labor
| Study | CSE | Epidural | P-value |
|---|---|---|---|
| Tsen, 1999 | 3.8 ± 2.6 | 5.1 ± 2.6 | P <0.05 |
| Norris, 2001 | 10.0 | 9.8 | NS |
| Cortes, 2007 | 1.5 | 1.55 | 0.90 |
| Frigo, 2011 | 4.01 ± 1.43 | 4.60 ± 1.39 | 0.043 |
Reported in hours (mean ± SD). CSE=combined spinal-epidural; NS=not significant.
