Table 1 Demographic, social and obstetric characteristics of women assisted in the two models of care
Maternal Characteristics | Total (N = 4,798) | PPA model of care (N = 2,571) | Standard of care model (N = 2,227) | P value | |||
|---|---|---|---|---|---|---|---|
n | % | n | % | N | % | ||
Age | < 0.001 | ||||||
< 20 | 83 | 1.7 | 67 | 2.6 | 16 | 0.7 | |
20 to 34 | 3067 | 63.9 | 1753 | 68.2 | 1315 | 59.0 | |
35 or more | 1647 | 34.3 | 750 | 29.2 | 897 | 40.3 | |
Self-reported skin colora | 0.215 | ||||||
White | 3239 | 67.6 | 1733 | 67.5 | 1506 | 67.7 | |
Black | 229 | 4.8 | 136 | 5.3 | 94 | 4.2 | |
Mixed | 1194 | 24.9 | 622 | 24.2 | 572 | 25.7 | |
Asian | 129 | 2.7 | 77 | 3,0 | 52 | 2.3 | |
Years of schooling | 0.563 | ||||||
1 to 10 | 204 | 4.3 | 117 | 4.6 | 87 | 3.9 | |
11 to 14 | 1859 | 38.9 | 997 | 39,0 | 862 | 38.8 | |
15 or more | 1414 | 29.6 | 738 | 28.9 | 677 | 30.5 | |
Post-graduate studies | 1298 | 27.2 | 702 | 27.5 | 596 | 26.8 | |
Economic class | < 0.001 | ||||||
D/E | 14 | 0.3 | 9 | 0.4 | 5 | 0.2 | |
C | 797 | 16.6 | 473 | 18.4 | 324 | 14.6 | |
B | 2614 | 54.5 | 1414 | 55.0 | 1200 | 53.9 | |
A | 1373 | 28.6 | 674 | 26.2 | 698 | 31.4 | |
Lives with partner | 4475 | 93.7 | 2352 | 92.0 | 2123 | 95.6 | < 0.001 |
Paid work | 3793 | 79.4 | 2075 | 81.2 | 1718 | 77.3 | 0.004 |
Primiparous | 2846 | 59.4 | 2084 | 81.1 | 762 | 34.3 | < 0.001 |
Previous cesarean sectionb | 1428 | 73.4 | 182 | 37.3 | 1246 | 85.4 | < 0.001 |
Robson´s groups | < 0.001 | ||||||
1.Nulliparous, single, term, cephalic, spontaneous labour | 817 | 17.0 | 718 | 27.9 | 99 | 4.4 | |
2a. Nulliparous, single, ≥ 37 ws, cepahlic, induced labour | 270 | 5.6 | 252 | 9.8 | 18 | 0.8 | |
2b. Nulliparous, single, ≥ 37 ws, cephalic, CS before labour | 1233 | 25.7 | 895 | 34.8 | 338 | 15.2 | |
3. Multiparous, single, ≥ 37 ws, cephalic, spontaneous labour | 250 | 5.2 | 182 | 7,1 | 68 | 3,1 | |
4a. Multiparous, single, ≥ 37 ws, cepahlic, induced labour | 63 | 1.3 | 50 | 1.9 | 13 | 0.6 | |
4b. Multiparous, single, ≥ 37 ws, cephalic, CS before labour | 127 | 2.6 | 52 | 2,0 | 75 | 3.4 | |
5. Previous CS, single, cephalic, ≥ 37 weeks | 1219 | 25,4 | 146 | 5.7 | 1072 | 48.2 | |
6. All nullipara breeches | 187 | 3.9 | 80 | 3.1 | 107 | 4.8 | |
7. All multípara breeches (including previous CS) | 93 | 1.9 | 16 | 0.6 | 77 | 3.5 | |
8. All multiple pregnancies (including previous CS) | 84 | 1.8 | 19 | 0.7 | 65 | 2.9 | |
9. All abnormal lies (including previou CS) | 39 | 0.8 | 6 | 0.2 | 33 | 1.5 | |
10. All single cephalic ≤ 36 weeks (including previous CS) | 418 | 8.7 | 156 | 6,1 | 262 | 11.7 | |
Complications during pregnancy | 1199 | 25.0 | 594 | 23.2 | 605 | 27.2 | 0.005 |