Table 3.
Delivery | O'Sullivan | WHO | Carpenter and Coustan | |||
---|---|---|---|---|---|---|
Positive | Negative | Positive | Negative | Positive | Negative | |
Abnormal | 3 | 74 | 4 | 73 | 4 | 73 |
Normal | 3 | 211 | 8 | 206 | 9 | 205 |
Total | 6 | 285 | 12 | 279 | 13 | 278 |
Relative risk (95% CI) | 1.93 (0.84–4.39) | 1.39 (0.43–4.48) | 1.17 (0.51–2.71) |
WHO: World Health Organization.