Table 2.
Demographic characteristics of women included in the study group.
| Maternal characteristics | Number (%) (N = 4610) |
|---|---|
| Country of birth | |
| Australia or New Zealand | 1932 (41.9) |
| Arab States | 111 (2.4) |
| West and Central Asia | 138 (3.0) |
| Southeast Asia | 922 (20.0) |
| East Asia | 154 (3.3) |
| South Asia | 673 (14.6) |
| Africa | 354 (7.7) |
| Latin America | 41 (0.9) |
| Oceania | 83 (1.8) |
| Europe and North America | 202 (4.4) |
| Age (years)† | 29.2 ± 6.1 |
| 1st quartile (≤26 years) | 1360 (29.5) |
| 2nd quartile (>26 and ≤29 years) | 1009 (21.9) |
| 3rd quartile (>29 and ≤33 years) | 1186 (25.7) |
| 4th quartile (>33 years) | 1055 (22.9) |
| Parity | |
| Nulliparous (parity = 0) | 1998 (43.3) |
| Multiparous (parity 1 to 4) | 2484 (53.9) |
| Grand multiparity (parity ≥ 5) | 128 (2.8) |
| Body mass index (kg/m2) | |
| Underweight (<18.5) | 198 (4.3) |
| Normal (≥18.5 and <25) | 2066 (44.8) |
| Overweight (≥25 and <30) | 1231 (26.7) |
| Obese (≥30 and <35) | 556 (12.1) |
| Morbidly obese (≥35) | 559 (12.1) |
†Mean and standard deviation.