Vaginal (n = 11,074) | Prelabor C-section (n = 10,331) | Intrapartum C-section (n = 1,315) | P-value* | |
---|---|---|---|---|
n (%) | n (%) | n (%) | ||
Source of payment of birth | ||||
Public | 10,512 (94.9) | 6,368 (61.6) | 1,140 (86.7) | <0,001 |
Private | 562 (5.1) | 3,963 (38.4) | 175 (13.3) | |
Age in years (11,071; 10,328; 1,315) | ||||
12–19 | 2,739 (24.7) | 1,218 (11.8) | 312 (23.7) | <0,001 |
20–34 | 7,505 (67.8) | 7,664 (74.2) | 892 (67.8) | |
≥ 35 | 827 (7.5) | 1,446 (14.0) | 111 (8.4) | |
Years of schooling (11,030; 10,267; 1,310) | ||||
≤ 7 | 3,815 (34.6) | 1,791 (17.4) | 373 (28.5) | <0,001 |
8–10 | 3,303 (29.9) | 2,155 (21) | 320 (24.4) | |
11–14 | 3,617 (32.8) | 4,650 (45.3) | 533 (40.7) | |
≥ 15 | 295 (2.7) | 1,671 (16.3) | 84 (6.4) | |
Previous births | ||||
0 | 4,696 (42.6) | 5,126 (46.5) | 717 (6.5) | <0,001 |
1–2 | 4,844 (43.9) | 4,501 (40.8) | 481 (4.4) | |
≥ 3 | 1,534 (13.9) | 704 (6.4) | 117 (1.1) | |
Fetal presentation | ||||
Cefalic | 11,022 (99.5) | 9,599 (92.9) | 1,177 (89.5) | <0,001 |
Non-cefalic | 52 (0.5) | 732 (7.1) | 138 (10.5) | |
Type of pregnancy | ||||
Single | 11,007 (99.4) | 9,994 (96.7) | 1,256 (95.5) | <0,001 |
Multiple | 67 (0.6) | 337 (3.3) | 59 (4.5) | |
Obstetric risk | ||||
Any | 1,410 (12.7) | 3,283 (31.8) | 377 (28.7) | <0,001 |
Hypertensive disorders | 601 (5.4) | 1,680 (16.3) | 136 (10.3) | <0,001 |
Diabetes (pre-gestational or gestational) | 799 (7.2) | 1,047 (10.1) | 105 (8.0) | <0,001 |
Abruptio placentae | 33 (0.3) | 154 (1.5) | 31 (2.4) | <0,001 |
Placental praevia | 17 (0.2) | 76 (0.7) | 7 (0.5) | <0,001 |
Intra uterine growth restriction | 55 (0.5) | 902 (8.7) | 160 (12.2) | <0,001 |
Gestational age in weeks | ||||
34–36 | 860 (7.8) | 991 (9.6) | 151 (11.5) | <0,001 |
37–38 | 3,671 (33.1) | 4,189 (40.5) | 416 (31.6) | |
39–41 | 6,237 (56.3) | 4,915 (47.6) | 713 (54.2) | |
42 or more | 306 (2.8) | 236 (2.3) | 35 (2.7) |