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

Table 3 Association between abnormal liver imaging and fibrosis staging in hepatitis C

Variables	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	LR (+)	LR (-)
Abnormal liver finding
≥ F4	81.70	70.40	48.20	92.00	2.76	0.26
≥ F3	75.20	75.10	62.20	84.70	3.02	0.33
≥ F2	55.70	77.30	79.10	53.10	2.45	0.57
Cirrhosis
≥ F4	18.30	99.20	88.20	78.30	22.87	0.82
≥ F3	13.90	99.50	94.10	67.90	27.8	0.87
≥ F2	8.60	100.00	100.00	41.50	Inf	0.91
Hepatic steatosis
≥ F4	15.20	92.00	39.10	76.30	1.9	0.92
≥ F3	13.90	92.40	50.00	66.30	1.83	0.93
≥ F2	11.60	93.00	71.90	40.50	1.66	0.95
Suggestive of chronic liver disease
≥ F4	59.80	84.00	55.70	86.10	3.74	0.48
≥ F3	51.70	86.50	67.60	76.60	3.83	0.56
≥ F2	37.50	89.10	84.10	48.00	3.44	0.7
Increased echogenicity
≥ F4	17.10	90.30	37.30	76.40	1.76	0.92
≥ F3	18.30	92.20	56.00	67.40	2.35	0.89
≥ F2	14.20	92.60	74.70	41.10	1.92	0.93

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