Table 4. Liver stiffness value and ICGR15 for preoperative risk assessment of PHLF.

Parameter	AUC	Cut-off value	Sensitivity (%)	Specificity (%)	Likelihood ratio	P value
≥ PHLF A (n=129 vs. n=43)
LSV	0.624 (0.536–0.712)	8.45 kPa	86.1 (72.1–94.7)	40.3 (31.8–49.3)	1.44	0.015
ICGR15	0.631 (0.542–0.721)	2.95%	90.7 (77.9–97.4)	31.0 (23.2–39.8)	1.31	0.01
≥ PHLF B (n=153 vs. n=19)
LSV	0.699 (0.576–0.821)	12.70 kPa	68.4 (43.5–87.4)	71.2 (63.4–78.3)	2.38	0.005
ICGR15	0.570 (0.436–0.704)	5.70%	52.6 (28.9–75.6)	63.4 (55.2–71.0)	1.44	0.32
≥ PHLF C (n=167 vs. n=5)
LSV	0.831 (0.737–0.925)	14.90 kPa	80.0 (28.4–99.5)	80.2 (73.4–86.0)	4.05	0.01
ICGR15	0.717 (0.515–0.920)	6.45%	80.0 (28.4–99.5)	71.9 (64.4–78.9)	2.84	0.098

Data in parentheses are 95% confidence intervals. PHLF, post-hepatectomy liver failure; ICGR15, indocyanine green retention rate at 15 minutes; LSV, liver stiffness value; AUC, area under the receiver operating characteristic curve.