End point | p1 for C | p2 for M | Effect size | Achieved power | |
---|---|---|---|---|---|
Spinal group | Success (attempt = 1) | 20.31% | 59.38% | 0.97 | 1.000 |
N = 128 per each | Failure | 7.81% | 1.56% | 0.23 | 0.920 |
Complication | 1.56% | 1.56% | NA | NA | |
Epidural group | Success (attempt = 1) | 14.29% | 64.94% | 1.45 | 1.000 |
N = 77 per each | Failure | 15.58% | 2.60% | 0.36 | 0.965 |
Complication | 14.29% | 1.30% | 0.37 | 0.972 | |
Combined group | Success (attempt = 1) | 15.09% | 47.27% | 0.90 | 1.000 |
N = 53/55 | Failure | 22.64% | 1.82% | 0.50 | 0.987 |
Complication | 20.75% | 3.64% | 0.42 | 0.963 |