Risk factors | Univariate logistic regression | Multivariate logistic regression | ||
---|---|---|---|---|
Odds ratio (95% CI) | P | Odds ratio (95% CI) | P | |
From ward (N = 168) | ||||
 Outdoor temperature | 0.76 (0.55–1.04) | 0.088 |  |  |
 Anxiety | 1.85 (0.93–3.66) | 0.078 |  |  |
 Enter OR visual analog scale | 1.17 (0.93–1.46) | 0.182 |  |  |
 Visual analog scale | 2.10 (0.77–5.78) | 0.149 |  |  |
 Electivea vs. emergency | 2.99 (1.51–5.95) | 0.002 | 2.99 (1.51–5.95) | 0.002 |
 Rupture of membranes | 1.87 (0.73–4.83) | 0.195 |  |  |
 Operation indications | 1.10 (0.97–1.24) | 0.134 |  |  |
From delivery room (N = 44) | ||||
 Anxiety | 1.89 (0.72–4.95) | 0.193 |  |  |
 Enter OR visual analog scale | 1.39 (0.99–1.96) | 0.056 |  |  |
 Visual analog scale | 3.24 (0.86–12.22) | 0.082 |  |  |