From: The diagnostic value of biomarkers (SteatoTest) for the prediction of liver steatosis
Cut-off | Sensitivity | Specificity | Positive Predictive Value | Negative Predictive Value |
---|---|---|---|---|
Training Group N = 310 | Â | Â | Prevalence = 45% | Â |
SteatoTest 0.30 | 0.91 (127/140) | 0.45 (77/170) | 0.58 (127/220) | 0.86 (77/90) |
SteatoTest 0.50 | 0.69 (97/140) | 0.74 (126/170) | 0.69 (97/141) | 0.75 (126/169) |
SteatoTest 0.70 | 0.45 (63/140) | 0.89 (152/170) | 0.78 (63/81) | 0.66 (152/229) |
GGT 50 IU/L | 0.66 (92/140) | 0.55 (94/170) | 0.55 (92/168) | 0.66 (94/142) |
ALT 50 IU/L | 0.77 (108/140) | 0.35 (60/170) | 0.50 (108/218) | 0.65 (60/92) |
Validation Group1 N = 171 | Â | Â | Prevalence = 26% | Â |
SteatoTest 0.30 | 0.98 (44/45) | 0.24 (30/126) | 0.31 (44/140) | 0.97 (30/31) |
SteatoTest 0.50 | 0.89 (40/45) | 0.58 (73/126) | 0.43 (40/93) | 0.94 (73/78) |
SteatoTest 0.70 | 0.44 (20/45) | 0.83 (105/126) | 0.49 (20/41) | 0.81 (105/130) |
GGT 50 IU/L | 0.62 (28/45) | 0.61 (72/126) | 0.34 (28/82) | 0.81 (72/89) |
ALT 50 IU/L | 1.00 (45/45) | 0.06 (8/126) | 0.28 (45/163) | 1.00 (8/8) |
Validation Group 2 N = 201 | Â | Â | Prevalence = 11% | Â |
SteatoTest 0.30 | 1.00 (22/22) | 0.56 (100/179) | 0.22 (22/101) | 1.00 (100/100) |
SteatoTest 0.50 | 0.68 (15/22) | 0.79 (142/179) | 0.29 (15/52) | 0.95 (142/149) |
SteatoTest 0.70 | 0.32 (7/22) | 0.92 (165/179) | 0.33 (7/21) | 0.92 (165/180) |
GGT 50 IU/L | 0.09 (2/22) | 0.97 (174/179) | 0.29 (2/7) | 0.90 (174/194) |
ALT 50 IU/L | 0.05 (1/22) | 0.98 (176/179) | 0.25 (1/3) | 0.89 (176/197) |
Validation Group 3 N = 62 | Â | Â | Prevalence = 94% | Â |
SteatoTest 0.30 | 0.85 (49/58) | 0.00 (0/4) | 0.93 (49/53) | 0.00 (0/9) |
SteatoTest 0.50 | 0.62 (36/58) | 1.00 (4/4) | 1.00 (36/36) | 0.15 (4/26) |
SteatoTest 0.70 | 0.40 (23/58) | 1.00 (4/4) | 1.00 (23/23) | 0.10 (4/39) |
GGT 50 IU/L | 0.90 (52/58) | 0.00 (0/4) | 0.93 (52/56) | 0.00 (0/6) |
ALT 50 IU/L | 0.53 (31/58) | 0.75 (3/4) | 0.97 (31/32) | 0.10 (3/30) |
All Groups N = 884 | Â | Â | Prevalence = 30% | Â |
SteatoTest 0.30 | 0.90 (238/265) | 0.54 (336/619) | 0.46 (238/521) | 0.93 (336/363) |
SteatoTest 0.50 | 0.72 (190/265) | 0.75 (466/619) | 0.55 (190/343) | 0.86 (466/541) |
SteatoTest 0.70 | 0.46 (122/265) | 0.88 (546/619) | 0.63 (122/195) | 0.79 (546/689) |
GGT 50 IU/L | 0.66 (174/265) | 0.76 (468/619) | 0.54 (174/325) | 0.84 (468/559) |
ALT 50 IU/L | 0.72 (185/265) | 0.62 (382/619) | 0.44 (185/422) | 0.83 (382/462) |