Table 4 The performance of AST to Platelet Ratio Index (APRI), NAFLD fibrosis score (NFS) and fibrosis 4 (FIB-4) in prediction of advanced fibrosis in elderly NAFLD patients and non-elderly NAFLD patients

Non-elderly NAFLD

0.67 (0.60–0.74) p < 0.001

0.68 (0.61–0.75) p < 0.001

0.71 (0.64–0.78) p < 0.001

(n = 480)

(n = 475)

(n = 480)

Elderly NAFLD

0.62 (0.52–0.72) p = 0.03

0.65 (0.55–0.75) p = 0.01

0.64 (0.54–0.74) p = 0.01

(n = 132)

(n = 131)

(n = 132)

All patients

0.66 (0.61–0.72) p < 0.001

0.70 (0.65–0.75) p < 0.001

0.73 (0.67–0.78) p < 0.001

(n = 612)

(n = 606)

(n = 612)