Table 3.

Lineer regression analysis

	P	OR	95% CI
			Min.	Max.
Age	0.515	0.001	-0.002	0.001
Sex	0.623	0.011	-0.017	0.029
DM	0.993	0.061	-0.12	0.119
HT	0.748	0.056	-0.093	0.13
COPD	0.747	0.08	-0.132	0.184
CHD	0.818	0.098	-0.17	0.215
Hospital stay	4.110	0.01	0.16	0.2
Radix ligation	0.003	0.011	0.011	0.057
Surgical pathology	0.414	0.069	0.016	0.089

CI: confidence interval; OR: odds ratio; DM: diabetes mellitus; HT: hypertension; COPD: chronic obstructive pulmonary disease; CHD: coronary heart disease; *p<0.05 is statistically significant. Independent samples t-test/Mann–Whitney U test/chi-square test (Fisher’s exact test).