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Sensitivity, specificity, and χ2 tests of the uEtG tests with respect to past day drinking, past 3-day drinking and past 3-day binge drinking.
| Sensitivity (% of drinking detected) | Specificity (% of non-drinking detected) | χ2 | df | p | |
|---|---|---|---|---|---|
| Past Day Drinking | 73.91% | 80.00% | 18.73 | 1 | <0.001 |
| Past 3-Day Drinking | 43.64% | 84.62% | 2.94 | 1 | 0.11 |
| Past Day Binge Drinking | 83.33% | 66.13% | 5.67 | 1 | <0.001 |
| Past 3-Day Binge Drinking | 39.39% | 62.86% | 0.04 | 1 | 0.30 |
