Table 1 .
Characteristics of low risk women in primary care at onset of labour
| Characteristics | Total (n=146 752) | Planned place of birth at onset of labour | |
|---|---|---|---|
| Home (n=92 333) | Hospital (n=54 419) | ||
| Parity: | |||
| 0 | 65 227 (44.4) | 38 728 (41.9) | 26 499 (48.7) |
| 1+ | 81 521 (55.6) | 53 602 (58.1) | 27 919 (51.3) |
| Missing data | 4 (0) | — | — |
| Gestational age: | |||
| 37+0 to 37+6 | 5700 (3.9) | 3404 (3.7) | 2296 (4.2) |
| 38+0 to 40+6 | 107 763 (73.4) | 67 507 (73.1) | 40 256 (74.0) |
| 41+0 to 41+6 | 33 289 (22.7) | 21 422 (23.2) | 11 867 (21.8) |
| Maternal age (years): | |||
| <25 | 18 549 (12.6) | 9142 (9.9) | 9407 (17.3) |
| 25-34 | 101 691 (69.3) | 66 554 (72.1) | 35 137 (64.6) |
| ≥35 | 26 498 (18.1) | 16 630 (18.0) | 9868 (18.1) |
| Missing data | 14 (0) | — | — |
| Ethnicity: | |||
| Dutch | 119 755 (82.0) | 83 629 (90.9) | 36 126 (66.9) |
| Non-Dutch | 26 289 (18.1) | 8385 (9.1) | 17 904 (33.1) |
| Missing data | 708 (0.5) | — | — |
| Socioeconomic position: | |||
| High | 35 567 (24.6) | 23 243 (25.5) | 12 324 (23.0) |
| Medium | 66 419 (45.9) | 45 320 (49.7) | 21 099 (39.4) |
| Low | 42 861 (29.6) | 22 671 (24.8) | 20 190 (37.7) |
| Missing data | 1905 (1.3) | — | — |
For all characteristics P<0.001.