Table 3.
Distribution of controls and cases of maternal morbidity according to selected obstetric factors
| Proximal variables | Cases n (%) | Controls n (%) | χ2 | OR (95% CI) | p-value |
|---|---|---|---|---|---|
|
Number of consultations |
|
||||
| ≥ 6 |
51 (41.8) |
135 (55.3) |
|
1.00 |
|
| 4-5 |
42 (34.4) |
67 (27.5) |
|
1.65 (1.00-2.74) |
|
| 1-3 |
19 (15.6) |
27 (11.1) |
|
1.86 (0.95-3.63) |
|
| 0 |
9 (7.4) |
13 (5.3) |
|
|
|
| Not informed* |
1 (0.8) |
2 (0.8) |
|
|
|
| |
|
|
6.14 |
|
0.11 |
|
Hypertension during gestation |
|
||||
| No |
72 (59.0) |
207 (84.8) |
|
1.00 |
|
| Yes |
41 (33.6) |
24 (9.8) |
|
4.84 (2.73-8.50) |
|
| No prenatal care /not informed* |
9 (7.4) |
13 (5.3) |
|
|
|
| |
|
|
33.20 |
|
<0.001 |
|
Reference to high risk prenatal care |
|
||||
| No |
71 (58.2) |
202 (82.8) |
|
1.00 |
|
| Yes |
42 (34.4) |
29 (11.9) |
|
4.12 (2.39-7.11) |
|
| No prenatal care/ not informed* |
9 (7.4) |
13 (5.3) |
|
|
|
| 28.07 | <0.001 | ||||
* The missing information was not considered for the assessment of χ2.
Sao Luis, Brazil, 2009.