表 4.

影响麻醉方式相关因素的多因素Logistic回归分析

Multivariate logistic regression analysis of the factors affecting the choice of anesthetic method

Factor	B	S χ2	Wald χ2	OR	OR 95% CI	P
ELA: Epidural labor analgesia; ARM: Artificial rupture of membranes.
Per hour prolongation of ELA	0.089	0.018	26.057	1.094	1.057~1.132	< 0.001
Per cm increase in cervical orifice	0.064	0.027	5.748	1.066	1.011~1.124	0.017
ARM	-0.506	0.211	5.661	0.603	0.399~0.912	0.017