Correlation of liver imaging and transient elastography among patients with hepatitis C at a safety net hospital

Table 4 Association between abnormal liver imaging and steatosis staging in hepatitis C

Variables	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	LR (+)	LR (-)
Abnormal liver finding
≥ S3	56.10	60.40	24.30	85.90	1.42	0.73
≥ S2	53.30	61.40	34.20	77.70	1.38	0.76
≥ S1	51.50	61.30	38.10	73.20	1.33	0.79
Cirrhosis
≥ S3	3.50	94.60	12.90	81.20	0.65	1.02
≥ S2	3.60	94.40	19.40	72.20	0.64	1.02
≥ S1	3.90	94.20	23.50	67.90	0.67	1.02
Hepatic steatosis
≥ S3	24.60	93.00	44.40	84.50	3.53	0.81
≥ S2	20.10	93.50	54.00	75.60	3.11	0.85
≥ S1	18.00	93.90	57.80	71.20	2.95	0.87
Suggestive of chronic liver disease
≥ S3	28.10	73.40	19.30	81.80	1.05	0.98
≥ S2	26.00	72.80	26.50	72.30	0.96	1.02
≥ S1	26.20	72.60	30.70	68.00	0.96	1.02
Increased echogenicity
≥ S3	24.60	91.30	38.90	84.20	2.81	0.83
≥ S2	23.10	92.60	54.20	76.10	3.13	0.83
≥ S1	20.90	92.80	57.30	71.70	2.9	0.85

PPV: Positive predictive value; NPV: Negative predictive value; LR: Likelihood ratio.