TABLE 2.

Detection time and detection accuracy in clinic use among liver disease patients for various alcohol biomarkers

Test	Source	Detection time	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Ethyl glucuronide	Urine	3–5 d	76–89	93–99	64–100	86–93
Ethyl glucuronide	Hair	Months	81–100	83–98	68–95	86–100
Ethyl sulfate	Urine	3–5 d	82	86	70	93
Phosphatidylethanol	Blood	2–3 wk	98–100	66–96	85	100

Abbreviations: NPV, negative predictive value; PPV, positive predictive value.