Table 4.
Multivariate analysis of preoperative independent risk factors for POH after AADS.
| Characteristics | Coefficient | Standard | OR (95% CI) | P value |
|---|---|---|---|---|
| error | ||||
| Platelet count (×109/L) | −0.004 | 0.001 | 0.996 (0.994–0.998) | 0.002 |
| Female sex | 1.332 | 0.228 | 3.789 (2.423–5.927) | <0.001 |
| Age (years) | −0.045 | 0.007 | 0.956 (0.942–0.969) | <0.001 |
| Smoking history | 1.291 | 0.194 | 3.636 (2.488–5.313) | <0.001 |
| Cerebrovascular disease | 0.949 | 0.198 | 2.584 (1.753–3.808) | <0.001 |
| Chronic headache history | 1.060 | 0.217 | 2.888 (1.888–4.418) | <0.001 |
| White blood cell count (×109/L) | 0.084 | 0.020 | 1.087 (1.045–1.132) | <0.001 |
| Constant | −1.610 | 0.625 | 0.200 | 0.010 |
AADS, Stanford type A acute aortic dissection surgery; CI, confidence interval; OR, odds ratio; POH, postoperative headache.