Impact of the Hormonal Status in Women on Intraoperative Hypothermia during Laparoscopic Gynecologic Surgery when Considering the Fresh Gas Flow Rate: A Retrospective Study

Table 4

Univariate and multivariate logistic analyses of risk factors associated with intraoperative hypothermia.

Variables	Univariate analysis		Multivariate analysis
	OR (95% CI)	value	OR (95% CI)	value
Duration of anesthesia	1.05 (1.04–1.06)	≤ 0.01	1.08 (1.06–1.10)	≤ 0.01
Body mass index	0.29 (0.24–0.35)	≤ 0.01	0.22 (0.14–0.33)	≤ 0.01
Fresh gas flow rate	2.85 (2.02–4.03)	≤ 0.01	53.60 (12.64–227.29)	≤ 0.01
Core body temperature before anesthesia induction	0.003 (0.001–0.010)	≤ 0.01	0.00 (0.00–0.002)	≤ 0.01
Menstrual cycle phase	0.95 (077–1.17)	0.63
Follicular phase (0)
Luteal phase (1)			23.36 (1.08–504.85)	0.04
Menopause (2)			0.93 (0.22–3.94)	0.93
Estradiol	0.99 (0.992–0.997)	≤ 0.01	1.00 (0.99–1.01)	0.76
Progesterone	0.89 (0.85–0.92)	≤ 0.01	0.80 (0.61–1.06)	0.12

OR: odds ratio; CI: confidence interval.