Table 3 Distribution of the type of birth according to gestational aspects at São Carlos, São Paulo, 2018
From: Antenatal care as a risk factor for caesarean section: a case study in Brazil
Gestational variable | Type of birth | Statistical analysis 2 | Total | |
|---|---|---|---|---|
Caesarean section | Vaginal | |||
Access to antenatal care 1 | ||||
Did not have antenatal care 2 | 2 (66.67%) | 1 (33.33%) | OR = 1.47; CI = 0.08–87.09; p = 1.000 | 3 (0.09%) |
Not adequate | 319 (52.21%) | 292 (47.79%) | OR = 0.76; CI = 0.64–0.91; p = 0.003 | 611 (18.82%) |
Adequate | 1433 (58.63%) | 1011 (41.37%) | OR = 1.19; CI = 1.01–1.40; p = 0.031 | 2444 (75.27%) |
Not informed | 115 (60.85%) | 74 (39.15%) | - | 189 (5.82%) |
Gestational age (weeks) | ||||
22–27 | 5 (45.45%) | 6 (54.55%) | OR = 0.61; CI = 0.17–2.11; p = 0.416 | 11 (0.34%) |
28–36 | 173 (60.92%) | 111 (39.08%) | OR = 1.16; CI = 0.91–1.50; p = 0.231 | 284 (8.75%) |
> 36 | 1670 (57.39%) | 1240 (42.61%) | OR = 0.93; CI = 0.74–1.17; p = 0.559 | 2910 (89.62%) |
Not informed | 21 (50.00%) | 21 (50.00%) | - | 42 (1.29%) |
Number of antenatal visits | ||||
None | 10 (62.50%) | 6 (37.50%) | OR = 1.23; CI = 0.44–3.66; p = 0.689 | 16 (0.49%) |
1–6 | 223 (51.15%) | 213 (48.85%) | OR = 0.74; CI = 0.60–0.91; p = 0.003 | 436 (13.43%) |
> 6 | 1625 (59.01%) | 1129 (40.99%) | OR = 1.47; CI = 1.21–1.78; p = 0.000 | 2754 (84.82%) |
Not informed | 11 (26.83%) | 30 (73.17%) | - | 41 (1.26%) |
Type of pregnancy | ||||
Twin | 87 (81.31%) | 20 (18.69%) | OR = 3.31; CI = 1.06–5.54; p = 0.000 | 107 (3.30%) |
Singleton | 1781 (56.77%) | 1356 (43.23%) | 3137 (96.61%) | |
Not informed | 1 (33.33%) | 2 (66.67%) | - | 3 (0.09%) |
Total | 1869 (57.56%) | 1378 (42.44%) | 3247 | |