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Table 4 Sensitivity and specificity of the App in detection of risky drinking, where the clinical interview is used as the reference test

From: Asking about the last four drinking occasions on a tablet computer as a way to record alcohol consumption in Aboriginal and Torres Strait Islander Australians: a validation

Risk All data Matched time periods
Sens. Spec. Sens. Spec.
Short-term risk 0.97 [0.93, 0.99] 0.11 [0.03, 0.25] 0.93 [0.86, 0.97] 0.70 [0.54, 0.83]
Long-term risk 0.70 [0.55, 0.83] 0.61 [0.51, 0.70] 0.71 [0.54, 0.84] 0.69 [0.59, 0.77]
High-risk: short-term 0.93 [0.86, 0.97] 0.40 [0.27, 0.54] 0.88 [0.80, 0.94] 0.79 [0.67, 0.89]
High-risk: long-term 0.69 [0.39, 0.91] 0.82 [0.75, 0.88] 0.81 [0.54, 0.96] 0.85 [0.78, 0.91]
  1. Sens = Sensitivity; Spec = Specificity; drinking subjects only; n = 156; 95% confidence intervals are presented within square brackets