Validation of a Prediction Model for Intraoperative Hypothermia in Patients Receiving General Anesthesia

Table 4

Incidence of intraoperative hypothermia across the 3 risk groups in the entire sample (N = 227).

Risk group^a	Observed incidence (%)	Relative risk	value for trend^b	Likelihood ratio
Low	23.0 (12.4–33.5)	(Reference)	<0.001	0.39 (0.23–0.66)
Moderate	43.4 (33.7–53.2)	1.89 (1.13–3.16)		0.99 (0.74–1.39)
High	62.7 (51.5–74.3)	2.73 (1.66–4.48)		2.17 (1.43–3.31)

Data are shown with (a 95% confidence interval). ^aRisk group was assessed according to the scale: high, ≥ 90 in score; moderate, 70∼90 in score; low, ≤ 70 in score. ^b value for trend from logistic regression.