Baseline predictors of virological response for chronic hepatitis B patients

Table 2 Predictive value of single and combined baseline factors

Parameters	Responders	Non-responders	Predictive value (%)
ALT ≥ 140	9	3	PPV = 75
ALT < 140	1	8	NPV = 89
TSH < 2.4	9	3	PPV = 75
TSH ≥ 2.4	1	8	NPV = 89
TT4 ≥ 120	6	2	PPV = 75
TT4 < 120	3	9	NPV = 75
ALT ≥ 140, TT4 ≥ 120	6	1	PPV = 86
ALT < 140, TT4 < 120	1	7	NPV = 88
ALT ≥ 140, TSH < 2.4	8	1	PPV = 89
ALT < 140, TSH ≥ 2.4	0	6	NPV = 100
TT4 ≥ 120, TSH < 2.4	5	1	PPV = 83
TT4 < 120, TSH ≥ 2.4	0	7	NPV = 100

Data are expressed as numbers of instances. PPV: Positive predictive values; NPV: Negative predictive values.