Table 4:
Susceptibility measure: sensitivity, specificiy, Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of the susceptibility to smoking measure among students who tried a regular cigarette but are not current smokers, current smokers and those who only tried an e-cigarette.
| ARGENTINAa | MEXICOb | |||||
|---|---|---|---|---|---|---|
| Tried but not current smoker % (95%CI) | Current smokers % (95%CI) | Tried E-cig % (95%CI) | Tried but not current smoker % (95%CI) | Current smokers % (95%CI) | Tried E-cig % (95%CI) | |
| Sensitivity | 38.0 (32.0–44.3) | 54.4(46.3–62.3) | 30.4(21.7–40.3) | 36.5 (33.3–39.7) | 37.9 (32.2–43.8) | 28.3(24.2–32.6) |
| Specificity | 82.2 (80.0–84.2) | 78.9 (76.8–80.9) | 76.3 (74.1–78.3) | 82.2 (80.9–83.4) | 78.4 (77.2–79.6) | 78.2 (76.9–79.4) |
| Positive predictive Value | 29.3 (24.4–34.6) | 21.2 (17.4–25.5) | 7.7 (5.3–10.7) | 33.7 (30.8–36.7) | 9.7 (7.98–11.6) | 12.1 (10.2–14.1) |
| Negative predictive Value | 87.2 (85.2–89.0) | 94.0 (92.9–95.5) | 94.4 (93.0–95.0) | 83.9 (82.6–85.0) | 95.4 (94.7–96.0) | 91.1 (90.0–92.0) |
a
Surveys in Buenos Aires, Cordoba and Tucuman. October- November, 2015
b
Survey in Mexico City, Guadalajara, and Monterrey. October- November 2016.