Table 5 Associations between pain intensity (worst evening pain) gestation week 30 and risk factors measured in early pregnancy (n = 268).
Crude estimates | Adjusted estimates; model 1 | Adjusted estimates; model 2 | ||||
|---|---|---|---|---|---|---|
β1 (95% CI2) | p-value | β1 (95% CI2) | p-value | β1 (95% CI2) | p-value | |
Pain locations | ||||||
No pain | Reference | <0.001 | Reference | <0.001 | Reference | <0.001 |
Symphysis pain only | 44.2 (27.7, 60.6) | 40.4 (24.4, 56.5) | 35.5 (19.7, 51.1) | |||
Posterior pain only | 23.5 (16.6, 30.3) | 15.3 (7.8, 22.8) | 11.8 (4.3, 19.2) | |||
Combined symphysis pain and posterior pain | 40.5 (26.9, 54.0) | 26.0 (11.6, 40.4) | 16.5 (1.8, 31.1) | |||
P4 test | ||||||
Negative | Reference | <0.001 | Reference | 0.07 | Reference | 0.01 |
Unilateral positive | 16.5 (7.7, 25.2) | 5.8 (-3.1, 14.8) | 6.1 (-2.6, 14.7) | |||
Bilateral positive | 28.6 (19.9, 37.3) | 15.2 (5.8, 24.6) | 13.7 (4.5, 22.8) | |||
Pain provocation tests (sum) | 6.3 (4.5, 8.0) | <0.001 | 2.3 (0.3, 4.4) | 0.03 | 1.3 (-0.8, 3.3) | 0.23 |
Pain intensity in early pregnancy (worst evening pain) | 0.7 (0.5, 0.8) | <0.001 | - | - | 0.4 (0.2, 0.5) | <0.001 |