Table 4.

Univariable and multivariable logistic regression analyses of risk factors for grade B or C posthepatectomy liver failure

	No. of patients	Univariable analysis		Multivariable analysis
		Odds ratio	P	Odds ratio	P
rHUI *
< 0·410	18	6·4 × 103 (77·9, 1·1 ×108)	< 0·001	2·0 × 103 (19·6, 3·8 × 107)	< 0·001
≥ 0·410	49	1·00 (reference)		1·00 (reference)
Total bilirubin (mg/dl) *
> 0·83	20	5·85 (1·08, 31·66)	0·026	34·4 (0·5, 9·7 ×103)	0·070
≤ 0·83	47	1·00 (reference)		1·00 (reference)
Serum albumin (g/dl) *
< 3·4	14	2·61 (0·54, 12·63)	0·247
≥ 3·4	53	1·00 (reference)
Prothrombin time (%) *
< 80	11	7·42 (1·50, 36·60)	0·016	33·2 (0·5, 7·3 × 103)	0·070
≥ 80	56	1·00 (reference)		1·00 (reference)
ICGK *
< 0·171	26	5·85 (1·08, 31·66)	0·026	60·0 (0·4, 4·8 × 104)	0·081
≥ 0·171	41	1·00 (reference)		1·00 (reference)
ICGK-F *
< 0·08	26	14·1 (1·69, 128·46)	0·002
≥ 0·08	41	1·00 (reference)
FLR volume (ml) *
< 407	16	14·7 (2·58, 83·65)	< 0·001
≥ 407	51	1·00 (reference)
FLR proportion (%) *
< 42	25	15·9 (1·82, 139·27)	0·001
≥ 42	42	1·00 (reference)

Values in parentheses are 95 per cent confidence intervals.

^*Cut-off values were determined to minimize the value of the Youden index. rHUI, remnant hepatocellular uptake index; ICGK, plasma clearance rate of indocyanine green (ICG); ICGK-F, future liver remnant (FLR) plasma clearance rate of ICG.