Table 7 Regression analysis to identify correlates of having quit smoking
| Â | Odds of being a former smoker | |
|---|---|---|
OR (95% CI) | P value | |
Age | 1.00 (0.98–1.01) | 0.573 |
Gender | ||
 Female (point of reference) |  |  |
 Male | 0.58 (0.43–0.80) | 0.001 |
Education | ||
 Less than Senior School Certificate (point of reference) |  |  |
 Secondary/High School Certificate | 1.95 (0.21–18.31) | 0.560 |
 Graduate/postgraduate | 3.07 (0.33–28.20) | 0.322 |
 Professional degree | 4.38 (0.48–40.31) | 0.192 |
Smoking duration | 1.00 (1.00–1.00) | 0.399 |
Smoking before e-cigarette use initiation | 1.03 (0.99–1.07) | 0.156 |
FTCD | 0.86 (0.81–0.92) | < 0.001 |
E-cigarette use duration | 0.99 (0.98–1.00) | 0.017 |
E-cigarette use frequency | ||
 Less than monthly (point of reference) |  |  |
 Daily | 2.67 (1.28–5.58) | 0.009 |
 Weekly | 3.04 (1.45–6.38) | 0.003 |
 Monthly | 1.70 (0.76–3.81) | 0.199 |
E-cigarette liquid consumption | 1.33 (1.27–1.39) | < 0.001 |
Nicotine concentration | 1.06 (1.02–1.10) | 0.007 |
Number of flavors used | ||
 1 (point of reference) |  |  |
 2 or more | 1.25 (0.99–1.57) | 0.062 |
Flavors type used | ||
 Tobacco/mint/menthol only (point of reference) |  |  |
 At least one non-tobacco/mint/menthol | 0.95 (0.76–1.19) | 0.669 |
Perception of harm | ||
 Equally/more harmful than smoking (point of reference) |  |  |
 Harmless/less harmful than smoking | 1.80 (1.34–2.41) | < 0.001 |