Table 1. Comparison of demographic characteristics between nulliparous and multiparous women (n = 342).
| Nulliparous (n = 179) | Multiparous (n = 163) | t∕χ2 | P | |
|---|---|---|---|---|
| Age (years) (mean ± SD) | 28.42 ± 3.82 | 32.71 ± 3.70 | 10.532a | <0.001* |
| Gestational weeks (mean ± SD) | 19.58 ± 9.57 | 19.30 ± 9.77 | 0.267 | 0.790 |
| Gestation n (%) | ||||
| First trimester | 64 (35.8) | 58 (35.6) | ||
| Second trimester | 60 (33.5) | 57 (35.0) | 0.099b | 0.952 |
| Third trimester | 55 (30.7) | 48 (29.4) | ||
| BMI (mean ± SD) | 23.17 ± 3.52 | 23.18 ± 3.37 | 0.026a | 0.979 |
| Constipation during pregnancy n (%) | ||||
| Yes | 49 (27.4) | 51 (31.3) | 0.632b | 0.476 |
| Number of pregnancies (mean ± SD) | 1.35 ± 0.53 | 2.79 ± 0.85 | 19.020a | <0.001* |
| Prior miscarriages/abortions n (%) | ||||
| Yes | 57 (31.8) | 87 (53.4) | 16.224b | <0.001* |
Notes.
a
t.
b
χ2.
*
Significant difference between nulliparous and multiparous women.
BMI, body mass index.