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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