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Sensitivity, specificity, positive predictive value (PPV) and negative predicted value (NPV) of the one-item susceptibility measure for waterpipe tobacco (WP) and little cigars/cigarillos (LCC)
| Property | WP | LCC |
|---|---|---|
| % (95% CI) | % (95% CI) | |
| Sensitivity | 51.4 (39.2–63.6) | 40.2 (30.4–50.7) |
| Specificity | 84.9 (82.4–87.1) | 87.9 (85.6–90.0) |
| PPV | 20.3 (14.7–27.0) | 26.5 (19.6–34.4) |
| NPV | 95.9 (94.3–97.1) | 93.1 (91.2–94.7) |
