TABLE 2.
The Odds Ratio (OR [95% CI]) and P Value for Logistic Regression and the Area Under the Receiver Operator Characteristic Curve (Area ROC) (95% CI) Calculated for Each Factor Analyzed for an Association With Pregnancy-Related Pelvic Girdle Pain
| Factor | Odds Ratio (95% CI) | P Value | Area ROC (95% CI) |
| Gestation age | 1.02 (1.00, 1.04) | 0.07 | 0.53 (0.49, 0.57) |
| Parity (previous pregnancies >24 weeks gestation) | 1.15 (1.02, 1.30) | 0.03∗ | 0.55 (0.51, 0.59) |
| LBP/PGP in previous pregnancy | 4.35 (2.97, 6.35) | <0.001∗ | 0.68 (0.63, 0.72) |
| LBP/PGP non-pregnancy related | 2.24 (1.62, 3.09) | <0.001∗ | 0.58 (0.54, 0.62) |
| Family history | 3.76 (2.61, 5.41) | <0.001∗ | 0.65 (0.60, 0.70) |
| Hours standing | 1.06 (1.02, 1.11) | 0.009∗ | 0.55 (0.51, 0.59) |
| Country of birth (by region) | 0.03∗ | 0.58 (0.54, 0.62) | |
| Australia (reference level) | |||
| Oceania | 0.57 (0.23, 1.44) | 0.24 | |
| Europe | 0.34 (0.11, 1.10) | 0.07 | |
| Middle East | 0.64 (0.38, 1.09) | 0.10 | |
| Africa | 0.85 (0.44, 1.64) | 0.62 | |
| Southeast and Northeast Asia | 0.80 (0.52, 1.25) | 0.33 | |
| South and Central Asia | 0.57 (0.40, 0.81) | 0.002∗ | |
| Americas | 4.66 (0.54, 40.49) | 0.16 | |
∗
Significant at 5% level (P < 0.05).
LBP indicates low back pain; PGP, pelvic girdle pain.