Table 4.

Multivariate regression analysis for risk factors of conversion from laparoscopic to open repair

	Odds ratio	p value
Age	1.005 (0.974–1.038)	0.750
Sex (male)	0.889 (0.390–2.028)	0.780
PULP score	1.432 (1.096–1.872)	0.008
ASA score	1.025 (0.329–3.188)	0.966
Hypertension	1.134 (0.507–2.536)	0.760
Chronic kidney disease (grade 3)	1.498 (0.255–8.784)	0.654

Hosmer and Lemeshow test: 0.695

Collinearity between each factor was measured by the variance inflation factor, and all of them were less than 10