Table 1.
Selected Population Demographics and Response Rates
| Target population |
Included |
OR (95% CI) | Response | |||
|---|---|---|---|---|---|---|
| n | % | n | % | % | ||
| All delivered women | 4191 | 100 | 2830 | 100 | 67.5 | |
| Relationship status | ||||||
| Partnered | 3980 | 95.0 | 2716 | 96.0 | 1.0 | 68.2 |
| Single | 211 | 5.0 | 114 | 4.0 | 1.8 (1.4–2.4)** | 54.5 |
| Age | ||||||
| ≥ 24 years | 3651 | 87.1 | 2523 | 89.2 | 1.0 | 69.1 |
| < 24 years | 540 | 12.9 | 307 | 10.8 | 1.7 (1.4–2.0)** | 56.9 |
| Length of gestation | ||||||
| ≥ 37 weeks | 3936 | 93.9 | 2685 | 94.9 | 1.0 | 68.2 |
| < 37 weeks | 255 | 6.1 | 145 | 5.1 | 1.6 (1.3–2.1)** | 57.2 |
| Number of children | ||||||
| 1-2 children | 3285 | 78.4 | 2265 | 80.0 | 1.0 | 68.9 |
| 3 or more children | 906 | 21.6 | 565 | 20.0 | 1.3 (1.2–1.6)** | 62.6 |
| Mode of delivery | ||||||
| Vaginal | 3669 | 87.5 | 2490 | 88.0 | 1.0 | 67.9 |
| Operative* | 522 | 12.5 | 340 | 12.0 | 1.1 (0.9–1.4) | 65.3 |
| Infants | ||||||
| Single baby | 4109 | 98.0 | 2774 | 98.0 | 1.0 | 67.5 |
| Twins | 82 | 2.0 | 56 | 2.0 | 1.0 (0.6–1.5) | 68.3 |
*
Both elective and emergency, similar response rates;
**
P < 0.001, binary logistic regression