Logistic regression on ‘ever tried an e-cigarette’
| Variable | Model 1 OR (99% CI) | Model 2 OR (99% CI) |
|---|---|---|
| Never smoked | 0.12 (0.06 to 0.21) | 0.10 (0.07 to 0.16) |
| Ever smoked | 1 | 1 |
| Brand recognition | 1.20 (1.06 to 1.36) | 1.20 (1.05 to 1.38) |
| Best friend smoke | ||
| Yes | 3.31 (1.45 to 7.54) | 3.17 (1.42 to 7.09) |
| No | 1 | 1 |
| Gender | ||
| Male | 1 | |
| Female | 1.03 (0.47 to 2.25) | |
| Family Affluence Scale | ||
| 1 low | 1 | |
| 2 medium | 1.19 (0.72 to 1.98) | |
| 3 high | 0.80 (0.24 to 2.71) | |
| White ethnic group | 1 | |
| Other ethnic group | 1.87 (0.45 to 7.76) | |
| Age in years | 0.96 (0.73 to 1.25) | |
Model 1 unadjusted model n=892, Pearson χ2 goodness-of-fit=53.11, p=0.59. The pseudo R2 value is 0.34. Model 2 adjusted model n=884, Hosmer-Lemeshow goodness-of-fit=7.04, p=0.53. The pseudo R2 value 0.36. Bold: p<0.01.