Table 3 Past history/lifestyle and low back pain during pregnancy
Variable | Category | Â | Presence of pain | Odd ratio | P value | |
|---|---|---|---|---|---|---|
Total N = 410 | Yes n = 221 | No n = 189 | ||||
History of low back pain | Yes | 63 (15.4%) | 46 (20.8) | 17 (9.0) | 2.659(1.467–4.821) | 0.001 |
No (Ref) | 347 (84.6%) | 175 (79.2) | 172 (91) | Â | Â | |
Low back pain in previous pregnancy* | Yes | 102 (35.9%) | 73 (33.0) | 29 (15.3) | 3.003(1.785–5.050) | < 0.0001 |
No (Ref) | 182 (64.1%) | 83 (37.6) | 99 (52.4) | Â | Â | |
History of spinal anaesthesia | Yes | 16 (3.9%) | 8 (3.6) | 8 (4.2) | 0.850(0.313–2.310) | 0.750 |
No (Ref) | 394 (96.1%) | 213 (96.4) | 181 (95.8) | Â | Â | |
Exercise before pregnancy | Yes | 150 (36.6%) | 65 (29.4) | 85 (45.0) | 0.510 (0.339–0.766) | 0.001 |
No (Ref) | 260 (63.4%) | 156 (70.6) | 104 (55.0) | Â | Â | |
Exercise during pregnancy | Yes | 78 (19.0%) | 28 (12.7) | 50 (26.5) | 0.403 (0.242–0.673) | 0.001 |
No (Ref) | 332 (81.0%) | 193 (87.3) | 139 73.5 | Â | Â | |
Prolonged postural habit | Present | 201 (49.0%) | 119 (53.8) | 82 (43.4) | 1.522(1.030–2.250) | 0.035 |
| Â | Absent (Ref) | 209 (51.0%) | 102 (46.2) | 107 (56.6) | Â | Â |
Body mass index | Obese | 160(39.0%) | 111 (50.2) | 49 (25.9) | 2.883(1.897–4.383) | < 0.0001 |
| Â | Non obese (Ref) | 250 (61.0%) | 110 (49.8) | 140 (74.1) | Â | Â |
Firmness of mattress | Soft | 118 (28.8%) | 84 (38.0) | 34 (18.0) | 2.795(1.765–4.428) | < 0.0001 |
Firm (Ref) | 292 (71,2%) | 137 (62.0) | 155 (82.0) | Â | Â | |