Table 2.
Logistic regression analyses for prospective association between Wave 9 post-quit experiences and smoking relapse at Wave 10 follow-up for Australia and the UK
| % Relapse | Model 1 |
Model 2 |
|||||
|---|---|---|---|---|---|---|---|
| Predictors | AOR | 95% CI | P | AOR | 95% CI | P | |
|
| |||||||
| Since quit, capacity to enjoy life | 0.324 | 0.632 | |||||
| Improved | 8.4 | 0.58 | 0.28–1.22 | 0.151 | 0.65 | 0.26–1.65 | 0.365 |
| Gotten worse | 17.4 | 0.59 | 0.11–3.05 | 0.525 | 1.17 | 0.12–11.49 | 0.894 |
| Stayed the same | 16.8 | ref | ref | ||||
| Since quit, ability to cope with stress | 0.012 | 0.023 | |||||
| Improved | 6.7 | 0.77 | 0.23–2.56 | 0.667 | 1.21 | 0.28–5.34 | 0.799 |
| Gotten worse | 23.7 | 4.17 | 1.55–11.18 | 0.005 | 5.77 | 1.64–20.31 | 0.006 |
| Stayed the same | 11.7 | ref | ref | ||||
| Since quit, ability to control negative feelings | 0.291 | 0.175 | |||||
| Improved | 8.7 | 1.16 | 0.38–3.60 | 0.794 | 0.95 | 0.22–4.09 | 0.949 |
| Gotten worse | 15.6 | 0.41 | 0.13–1.31 | 0.133 | 0.26 | 0.06–1.08 | 0.064 |
| Stayed the same | 12.5 | ref | ref | ||||
| Since quit, work performance | 0.918 | 0.600 | |||||
| Improved | 7.6 | 0.69 | 0.18–2.71 | 0.596 | 1.99 | 0.33–12.05 | 0.456 |
| Gotten worse | -- | -- | -- | -- | -- | -- | -- |
| Not employed | 13.6 | 1.12 | 0.58–2.19 | 0.730 | 1.90 | 0.70–5.13 | 0.205 |
| Stayed the same | 12.8 | ref | ref | ||||
| Since quit, home air quality and cleanliness | |||||||
| Improved | 7.9 | 0.37 | 0.19–0.72 | 0.003 | 0.34 | 0.13–.93 | 0.036 |
| Noticed no difference | 18.7 | ref | ref | ||||
| Since quit, have more/less spare time | 0.951 | 0.545 | |||||
| Have more | 9.9 | 1.13 | 0.52–2.45 | 0.751 | 0.56 | 0.19–1.58 | 0.271 |
| Have less | – | – | – | – | – | – | – |
| Stayed the same | 13.1 | ref | ref | ||||
| Since quit, have more/less money to spend | 0.773 | 0.926 | |||||
| Have more | 11.7 | 1.29 | 0.65–2.56 | 0.473 | 1.20 | 0.48–3.02 | 0.695 |
| Have less | – | – | – | – | – | – | – |
| Stayed the same | 13.8 | ref | ref | ||||
| Since quit, social confidence | 0.153 | 0.155 | |||||
| Improved | 2.8 | 0.26 | 0.06–1.19 | 0.082 | 0.20 | 0.03–1.60 | 0.130 |
| Gotten worse | 15.0 | 0.36 | 0.04–3.30 | 0.368 | 0.15 | 0.01–2.59 | 0.193 |
| Stayed the same | 31.3 | ref | ref | ||||
| Gender | |||||||
| Female | 11.9 | NA | 0.98 | 0.42–2.29 | 0.961 | ||
| Male | 12.8 | NA | ref | ||||
| Country | |||||||
| Australia | 12.0 | NA | 0.59 | 0.24–1.47 | 0.259 | ||
| UK | 12.6 | NA | ref | ||||
| Age at recruitment, years | 0.318 | ||||||
| 18–24 | 12.5 | NA | ref | ||||
| 25–39 | 14.7 | NA | 0.33 | 0.05–2.27 | 0.262 | ||
| 40–54 | 13.5 | NA | 0.48 | 0.07–3.21 | 0.447 | ||
| 55+ | 8.3 | NA | 0.17 | 0.02–1.50 | 0.111 | ||
| Ethnicity | |||||||
| White | 12.3 | NA | ref | ||||
| Non-white | 11.2 | NA | 2.15 | 0.41–11.36 | 0.366 | ||
| Income | 0.318 | ||||||
| High | 12.8 | NA | 0.49 | 0.14 – 1.70 | 0.262 | ||
| Moderate | 11.6 | NA | 0.47 | 0.14 – 1.61 | 0.229 | ||
| Low | 11.6 | NA | ref | ||||
| Education | 0.327 | ||||||
| High | 9.7 | NA | 1.20 | 0.73–6.58 | 0.159 | ||
| Moderate | 14.9 | NA | 1.04 | 0.37–2.96 | 0.935 | ||
| Low | 15.6 | NA | ref | ||||
| Wave of recruitment# | NA | NA | 1.00 | 0.85–1.18 | 0.993 | ||
|
| |||||||
| Survey mode | |||||||
|
| |||||||
| Internet | 13.3 | NA | 1.59 | 0.56–4.49 | 0.380 | ||
|
| |||||||
| Telephone | 9.6 | NA | ref | ||||
|
| |||||||
| Quit duration | <0.001 | ||||||
|
| |||||||
| <1 month | 42.9 | NA | ref | ||||
|
| |||||||
| 1–6 months | 36.1 | NA | 0.95 | 0.27–3.35 | 0.934 | ||
|
| |||||||
| 7–12 months | 37.0 | NA | 1.00 | 0.24–4.25 | 1.00 | ||
|
| |||||||
| > 12 months | 3.2 | NA | 0.03 | 0.01–0.13 | 0.000 | ||
|
| |||||||
| Urges to smoke# | NA | NA | 1.33 | 0.82–2.15 | 0.247 | ||
|
| |||||||
| Use of stop-smoking medication | |||||||
|
| |||||||
| Yes | 29.8 | NA | 1.23 | 0.51–2.93 | 0.647 | ||
|
| |||||||
| No | 7.8 | NA | Ref | ||||
|
| |||||||
| Home smoking bans | |||||||
|
| |||||||
| None | 13.6 | NA | Ref | ||||
|
| |||||||
| Partial/total ban | 12.4 | NA | 1.08 | 0.24–4.76 | 0.923 | ||
Note.
Wave of recruitment and urges to smoke were treated as quasi-continuous variables for modelling purposes. Model 1 shows odds ratio for each key predictor adjusting for the other seven key predictor variables in the table. Model 2 shows odds ratio also adjusted for control variables assessed at baseline such as age group, gender, ethnicity, income, education, wave recruited into the study, survey mode, quit length, urges to smoke, use of any stop-smoking medications and home smoking bans. AOR, adjusted odds ratio; CI, confidence interval; NA, not applicable; – estimates could not be computed due to small sample size; Refused and Don’t Know responses (not more than 4.6%) were excluded.