Table 1 Demographic and obstetric characteristics of the study participants
Maternal characteristics | Placental abruption (N = 112; %) | No placental abruption (n =39,881; %) | P value* |
|---|---|---|---|
Maternal agea | 29.1 (5.4) | 27.5 (6.0) | 0.004 |
Maternal age (years) | Â | Â | 0.02 |
 <20 | 12 (10.7) | 3528 ((8.8) |  |
 20–34 | 80 (71.4) | 30,782 (77.3) |  |
 ≥35 | 20 (17.9) | 5571 (13.9) |  |
Marital status | Â | Â | 0.03 |
 Married | 107 (95.5) | 35,549 (89.1) |  |
 Single | 5 (0.5) | 4332 (10.9) |  |
Mother’s area of residence |  |  |  |
 Rural | 61 (54.5) | 16,995 (42.6) | 0.01 |
 Urban | 51 (45.5) | 22,886 (57.4) |  |
Smoking in current pregnancy | Â | Â | 1.00 |
 Yes | 0 (0) | 44 (0.1) |  |
 No | 112 (100) | 39,837 (99.9) |  |
Alcohol use during pregnancy | Â | Â | 0.12 |
 Yes | 44 (38.4) | 12,679 (31.8) |  |
 No | 68 (60.7) | 27,202 (68.2) |  |
Mother’s educational (years) |  |  | 0.001 |
 <12 | 87 (77.7) | 25,081 (62.9) |  |
 ≥12 | 25 (22.3) | 14,800 (37.1) |  |
Antenatal care (ANC) | Â | Â | 0.54 |
 Yes | 111 (99.1) | 39,607 (99.3) |  |
 No | 1 (0.9) | 274 (0.7) |  |
Gravidity | Â | Â | <0.001 |
 1 | 22 (19.6) | 12,105 (30.4) |  |
 2–4 | 67 (59.8) | 24,618 (61.7) |  |
 ≥5 | 23 (20.6) | 3158 (7.9) |  |
Parity | Â | Â | <0.001 |
 0 | 24 (21.4) | 13,056 (32.7) |  |
 1–4 | 76 (67.9) | 25,777 (64.6) |  |
 ≥5 | 12 (10.7) | 1048 (2.6) |  |