Table 3.

Univariate analysis of long-term change in creatinine (1 year minus preoperative value).

Variable	Category	β estimate* (95% CI)	P	R2†
Ischaemia duration	1-min increase	0.005 (−0.001, 0.010)	0.086	0.082
Ischaemia duration	>30 vs ≤30 min (reference)	−0.040 (−0.184, 0.105)	0.581	0.009
Ischaemia type	Warm vs cold (reference)	−0.165 (−0.285, −0.044)	0.009	0.181
Creatinine 24-h after surgery minus preoperative	1-unit increase	0.210 (−0.063, 0.483)	0.128	0.065
End clamp thick section (n = 31)	1-unit increase	0.066 (−0.052, 0.185)	0.264	0.043
Tumour size (cm)	1-cm increase	0.004 (−0.048, 0.055)	0.883	0.001
Angiotensin-converting enzyme use	Yes vs no (reference)	0.088 (−0.050, 0.225	0.203	0.046
Body mass index	1-unit increase	−0.002 (−0.011, 0.007)	0.608	0.008
Age (years) at surgery	1-year increase	−0.003 (−0.009, 0.002)	0.269	0.035
Race/Ethnicity	White non-Hispanic vs Hispanic (reference)	0.090 (−0.059, 0.238)	0.229	0.041
Gender	Male vs female (reference)	0.084 (−0.047, 0.214)	0.201	0.046
Hypertension	Yes vs no (reference)	0.086 (−0.037, 0.208)	0.165	0.055
Type 2 diabetes	Yes vs no (reference)	0.067 (−0.064, 0.199)	0.304	0.030

^*β estimate: estimated coefficient for the independent variable in predicting long-term change in creatinine.

^†Coefficient of determination: proportion of variation of the outcome explained by the simple regression model.