Generalised estimating equations analyses of predictors of attempts to quit smoking, quit success, use of reimbursed treatment and use of unreimbursed treatment, including interactions
| Quit attempts OR (95% CI) n=1972 | Quit success OR (95% CI) n=1746 | Use of reimbursed treatment OR (95% CI) n=1900 | Use of unreimbursed treatment OR (95% CI) n=1906 | |
|---|---|---|---|---|
| Gender | ||||
| Male | 1.00 | 1.00 | 1.00 | 1.00 |
| Female | 1.18 (0.98 to 1.42) | 1.13 (0.84 to 1.53) | 1.00 (0.61 to 1.63) | 0.95 (0.66 to 1.38) |
| Age group | ||||
| 18–39 years old | 1.00 | 1.00 | 1.00 | 1.00 |
| 40–54 years old | 1.26 (0.97 to 1.63) | 1.27 (0.82 to 1.97) | 3.34 (1.16 to 9.57)* | 1.33 (0.76 to 2.33) |
| 55 years and older | 0.96 (0.74 to 1.25) | 1.23 (0.78 to 1.92) | 2.96 (1.03 to 8.48)* | 1.02 (0.57 to 1.82) |
| Educational level | ||||
| Low | 1.00 | 1.00 | 1.00 | 1.00 |
| Moderate | 1.30 (1.02 to 1.65)* | 1.27 (0.88 to 1.85) | 1.23 (0.64 to 2.35) | 1.14 (0.71 to 1.84) |
| High | 1.31 (1.04 to 1.65)* | 1.03 (0.71 to 1.48) | 1.39 (0.75 to 2.59) | 0.97 (0.62 to 1.50) |
| Number of cigarettes per day (CPD) | ||||
| Less than 10 CPD (light smokers) | 1.00 | 1.00 | 1.00 | 1.00 |
| 10 or more CPD (moderate-to-heavy smokers) | 0.52 (0.39 to 0.68)*** | 0.39 (0.23 to 0.65)*** | 0.57 (0.19 to 1.69) | 1.11 (0.54 to 2.28) |
| Survey wave | ||||
| 1—September 2010 | 1.00 | – | 1.00 | 1.00 |
| 2—December 2010 | 0.93 (0.72 to 1.20) | 1.00 | 1.12 (0.34 to 3.71) | 0.85 (0.45 to 1.59) |
| 3—March 2011 | 1.02 (0.77 to 1.34) | 1.44 (1.04 to 1.98)* | 0.71 (0.17 to 2.93) | 0.53 (0.19 to 1.52) |
| 4—June 2011 | 1.22 (0.92 to 1.61) | 1.75 (1.21 to 2.52)** | 0.47 (0.09 to 2.44) | 0.44 (0.14 to 1.38) |
| Awareness of the reimbursement policy | ||||
| No | 1.00 | 1.00 | 1.00 | 1.00 |
| Yes | 1.18 (0.88 to 1.58) | 1.46 (1.01 to 2.11)* | 3.91 (1.35 to 11.33)* | 0.57 (0.19 to 1.72) |
| Attention to media coverage about the reimbursement policy† | 1.09 (0.96 to 1.24) | 1.19 (1.00 to 1.41) | 0.69 (0.37 to 1.31) | 1.29 (0.83 to 2.00) |
| Interactions | ||||
| CPD * survey wave 2 | 1.32 (0.93 to 1.88) | 1.49 (0.90 to 2.48) | 0.63 (0.14 to 2.70) | 1.09 (0.52 to 2.30) |
| CPD * survey wave 3 | 1.48 (1.06 to 2.08)* | 1.51 (0.95 to 2.39) | 1.23 (0.25 to 6.14) | 3.11 (1.03 to 9.46)* |
| CPD * survey wave 4 | 1.14 (0.83 to 1.58) | – | 1.46 (0.23 to 9.15) | 3.87 (1.15 to 13.02)* |
| CPD * awareness of the reimbursement policy | 0.87 (0.62 to 1.23) | 0.65 (0.40 to 1.04) | 0.76 (0.22 to 2.60) | 1.93 (0.61 to 6.10) |
| CPD * attention to media coverage about the reimbursement policy | 1.11 (0.95 to 1.30) | 1.01 (0.81 to 1.26) | 2.22 (1.11 to 4.47)* | 0.83 (0.52 to 1.34) |
*p<0.05, **p<0.01, ***p<0.001.
†On a scale from 0 to 3.