Table 3.

The multivariate binary logistic regression model

Variable	Odds ratio	95% confidence interval		P
		Lower bound	Upper bound
Gender (Male)	0.687	0.338	1.398	0.300
Age (≥18 years)	4.032	1.932	8.414	<0.001
Onset of PTH (within first week)	1.790	0.872	3.673	0.112
Bleeding source (Both tonsils)	2.380	1.032	5.487	0.042
Intraoperative blood transfusion	7.934	2.003	31.422	0.002