Table 5.

Diagnostic performance of total score for fatty liver at a cutoff of 5.0

Diagnostic parameter	On prediction set (95% CI) (n=1,054)	On validation set (95% CI) (n=454)
Sensitivity	79.0% (75.3–82.4%)	75.5% (69.1–81.2%)
Specificity	72.2% (68.1–76.1%)	70.3% (64.2–76.0%)
PPV	74.8% (71.0–78.3%)	68.3% (61.8–74.2%)
NPV	76.7% (72.7–80.4%)	77.2% (71.2–82.6%)
Positive LR	2.84 (2.46–3.29)	2.54 (2.07–3.13)
Negative LR	0.29 (0.24–0.35)	0.35 (0.27–0.45)
Disease prevalence	51.1% (48.0–54.2%)	45.8% (41.2–50.5%)
Kappa statistics	0.519 (P<0.001)	0.454 (P<0.001)

Abbreviations: CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value; LR, likelihood ratio.