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. Author manuscript; available in PMC: 2011 Nov 1.
Published in final edited form as: Alcohol. 2010 Jan 6;44(7-8):595–603. doi: 10.1016/j.alcohol.2009.08.009

Table 4.

Specificity and Sensitivity in Detecting Across-Pregnancy Drinking (AADXP)

Tolerance > 2 Tolerance > 3
Total T-ACE Cut-point = 2 Total T-ACE Cut-point = 3 Total T-ACE Cut-point = 2 Total T-ACE Cut-point = 3
Sensitivity .947a .789 .947 .789
Specificity .404 .808 .654 .827
Positive Predictive Value .367 .600 .500 .625
Negative Predictive Value .945 .913 .971 .915
Positive Likelihood Ratio 1.59 4.11 2.74 4.56
Negative Likelihood Ratio 0.63 0.24 0.37 0.22
a

Values in table were obtained from Receiver Operator Curves (ROCs).