Preoperative spectral computed tomography multi-parameter prediction of postoperative complications in colorectal cancer: A single-center retrospective cohort study

Table 5 Multivariate logistic regression analysis for postoperative complications prediction

Predictive factor	β	SE	χ²	P value	OR	95%CI	VIF
Age	0.041	0.018	5.184	0.023	1.042	1.006-1.080	1.12
Albumin	-0.127	0.047	7.289	0.007	0.881	0.803-0.967	1.34
Portal venous phase tumor normalized iodine concentration	-28.734	8.125	12.511	< 0.001	< 0.001	< 0.001-0.021	1.08
TNM stage (stage III vs stage I)	1.186	0.548	4.685	0.030	3.274	1.119-9.582	1.23
Intraoperative blood loss	0.003	0.001	6.841	0.009	1.003	1.001-1.005	1.15
Constant	1.287	1.952	0.434	0.510	3.621

Model equation: Logit (P) = 1.287 + 0.041 × Age - 0.127 × albumin - 28.734 × portal venous phase tumor normalized iodine concentration + 1.186 × TNM stage (stage III) + 0.003 × intraoperative blood loss. TNM: Tumor-nodes-metastasis; OR: Odds ratio; CI: Confidence interval; VIF: Variance inflation factor.