Table 1 Maternal and Delivery Characteristics of Women Experiencing OL/PL/FTP vs Normal Labor, 2010-2013
OL/PL/FTP | No OL/PL/FTP | RR (95% CI) | |
|---|---|---|---|
Women with deliveries, N* | 29,449 | 237,274 | |
Maternal age, N (%) | |||
< 20 | 3,503 (11.9) | 28,713 (12.1) | 1.3 (1.2, 1.3) |
20-35 | 24,929 (84.8) | 198,840 (83.9) | 1.0 |
> 35 | 950 (3.2) | 9,360 (4.0) | 1.0 (0.9, 1.0) |
Parity, N (%) | |||
0 | 14,074 (48.0) | 75,629 (32.0) | 1.8 (1.7, 2.0) |
1-2 | 9,436 (32.2) | 102,628 (43.4) | 1.0 |
≥3 | 5,816 (19.8) | 58,359 (24.7) | 0.8 (0.7, 0.9) |
Education, N (%) | |||
No formal education | 8,748 (29.8) | 57,912 (24.5) | 0.7 (0.7, 0.8) |
Primary | 8,278 (28.2) | 92,430 (39.1) | 1.0 |
Secondary | 8,996 (30.7) | 70,354 (29.8) | 1.3 (1.2, 1.3) |
University+ | 3,311 (11.3) | 15,488 (6.6) | 1.8 (1.7, 1.9) |
Birth weight (measured), N (%) | |||
< 1500g | 140 (0.5) | 1,852 (0.8) | 0.7 (0.5, 0.8) |
1500-2499g | 3,194 (12.0) | 23,170 (10.5) | 1.0 (1.0, 1.1) |
2500-3499g | 20,349 (76.6) | 173,974 (79.0) | 1.0 |
> 3500g | 2,894 (10.9) | 21,163 (9.6) | 1.2 (1.1, 1.3) |
Gestational age at delivery, N (%) | |||
Preterm | 2,589 (9.2) | 22,182 (9.6) | 0.9 (0.8, 1.0) |
Term | 25,683 (90.8) | 208,047 (90.4) | 1.0 |
BMI, N (%) | 23,857 | 182,118 | |
< 18 kg/m2 | 4,056 (17.0) | 32,459 (17.8) | 0.8 (0.8, 0.9) |
18-25 kg/m2 | 16,120 (67.6) | 124,468 (68.3) | 1.0 |
> 25 kg/m2 | 3,681 (15.4) | 25,191 (13.8) | 1.4 (1.3, 1.5) |
Delivery mode, N (%) | |||
Vaginal | 12,022 (40.8) | 217,381 (91.9) | 1.0 |
Vaginal assisted | 1,933 (6.6) | 2,194 (0.9) | 7.1 (5.1, 9.8) |
Cesarean section | 15,488 (52.6) | 17,061 (7.2) | 10.0 (7.8, 12.8) |
Birth attendant, N (%) | |||
Physician | 20,133 (68.4) | 82,183 (34.6) | 18.1 (9.5, 34.3) |
Nurse/Midwife/HW | 6,558 (22.3) | 80,998 (34.2) | 5.2 (2.9, 9.4) |
TBA/Family/Other | 2,754 (9.4) | 74,002 (31.2) | 1.0 |
Delivery location, N (%) | |||
Hospital | 21,491 (73.0) | 100,822 (42.5) | 14.5 (8.3, 25.2) |
Clinic | 5,376 (18.3) | 62,454 (26.3) | 4.9 (2.9, 8.5) |
Home/Other | 2,569 (8.7) | 73,869 (31.1) | 1.0 |