Skin autofluorescence as a novel predictor of acute kidney injury after liver resection

Table 3 Subgroup analyses of the associations between skin autofluorescence and occurrence of acute kidney injury after liver resection

Subgroup	Factor	OR (95% CI)	p
Major resections lasting ≥3.5 hours	SAF	6.69 (1.57-28.58)	.010
Major resections lasting <3.5 hours or minor resections lasting ≥3.5 hours	SAF	0.48 (0.11-2.09)	.329
Minor resections lasting <3.5 hours	SAF	-^a	-^a

^a – not calculated due to only 3 events in the subgroup. OR – odds ratio; 95% CI – 95% confidence interval; SAF – skin autofluorescence. Odds ratios were calculated per 1 arbitrary unit increase

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