Table 3.

Univariate and multivariate logistic regression analyses of correlations of each index with postoperative complications (Clavien Dindo ≥2)

Variable	Objective variable	Control	Univariate analysis			Multivariate analysis
			OR	95% CI	p value	OR	95% CI	p value
Age	≥85	75–84	1.66	0.63–1.66	0.894
Sex	male	female	1.59	1.15–2.19	0.005	1.53	1.10–2.12	0.010
BMI	≥25	< 25	1.10	0.73–1.62	0.648	1.19	0.79–1.78	0.397
Tumor location	rectum	colon	1.75	1.22–2.49	0.003	1.79	1.24–2.56	0.002
CONUT score	≥4	0–3	1.88	1.13–3.09	0.015	1.93	1.15–3.20	0.013
ASA-PS	3	1/2	0.93	0.62–1.37	0.703
CCI	≥4	< 4	0.84	0.54–1.26	0.402
NIA/NCI	≥4	0–3	0.78	0.43–1.36	0.395
ACE-27	Severe	Moderate	0.76	0.55–1.05	0.098

BMI body mass index, CONUT Controlling Nutritional Status, ASA-PS American Society of Anesthesiologists Physical Status classification, CCI Charlson Comorbidity Index, NIA/NCI National Institute on Aging and National Cancer Institute Comorbidity Index, ACE-27 Adult Comorbidity Evaluation-27, OR odds ratio, CI confidence interval