Table 3 Logistic regression on intention to try e-cigarettes in next 6 months - adjusted for clustering within school
Unadjusted model | Adjusted model 1 | Adjusted model 2 recoded e-cig variable | Adjusted model 3 fully imputed m = 20 | |
|---|---|---|---|---|
OR (99 % CI) | OR (99 % CI) | OR (99 % CI) | OR (99 % CI) | |
n = 2819 | n = 3370 | n = 3808 | ||
Recall e-cig supermarket | 3.60 (3.03 to 4.27) | 1.59 (1.17 to 2.17) | 1.60 (1.18 to 2.18) | 1.70 (1.22 to 2.36) |
Recall e-cig small shop | 3.93 (2.76 to 5.60) | 1.87 (1.04 to 3.35) | 1.88 (1.04 to 3.38) | 1.80 (1.08 to 2.99) |
Recall internet e-cig ads | 2.38 (1.51 to 3.76) | 1.39 (0.78 to 2.49) | 1.44 (0.83 to 2.50) | 1.50 (0.77 to 2.95) |
Recall other e-cig ads | 2.01 (1.87 to 2.17) | 1.28 (0.76 to 2.17) | 1.31 (0.77 to 2.24) | 1.24 (0.74 to 2.09) |
Never smoked tobacco | 0.32 (0.27 to 0.39) | 0.33 (0.27 to 0.39) | 0.32 (0.24 to 0.43) | |
Tried e-cigarette | 16.60 (13.09 to 21.04) | 20.01 (15.34 to 26.11) | 19.91 (13.76 to 28.80) | |
Gender- male | 1.59 (0.68 to 3.72) | 1.56 (0.66 to 3.72) | 1.56 (0.73 to 3.33) | |
Ethnic group-non-white | 1.39 (0.90 to 2.14) | 1.33 (0.85 to 2.08) | 1.24 (0.69 to 2.22) | |
Age | 1.16 (1.00 to 1.33) | 1.16 (1.01 to 1.33) | 1.16 (1.07 to 1.27) | |
FAS low | 1 | 1 | 1 | |
FAS medium | 1.16 (0.82 to 1.63) | 1.16 (0.82 to 1.64) | 1.14 (0.79 to 1.63) | |
FAS high | 1.56 (1.05 to 2.31) | 1.58 (1.07 to 2.33) | 1.50 (1.05 to 2.13) |