Logistic regression models of participant factors* associated with participation in the smoking cessation trial (n=584)
| Unadjusted OR (95% CI) | p Value | Adjusted OR (95% CI) | p Value | ||
|---|---|---|---|---|---|
| Age in years (continuous) | 0.99 (0.9 to 1.0) | 0.29 | 0.99 (0.9 to 1.0) | 0.29 | |
| Gender | |||||
| Male | Ref | – | – | ||
| Female | 0.85 (0.6 to 1.2) | 0.37 | 0.63 (0.4 to 1.0) | 0.05 | |
| Indigenous status | |||||
| Non-Aboriginal | Ref | – | |||
| Aboriginal or Torres Strait Islander | 1.66 (0.9 to 2.9) | 0.07 | 2.05 (1.0 to 4.1) | 0.05 | |
| Income | 0.11 | 0.08 | |||
| > $400 per week | Ref | – | – | ||
| $201–$400 per week | 1.71 (1.0 to 2.0) | 1.94 (1.0 to 4.0) | |||
| <$200 per week | 1.54 (0.9 to 2.7) | 1.43 (0.7 to 3) | |||
| Anxiety score (continuous) | 0.99 (0.9 to 1.1) | 0.86 | 0.96 (0.8 to 1.1) | 0.59 | |
| Depression score (continuous) | 1.0 (0.9 to 1.0) | 0.99 | 0.99 (0.9 to 1.0) | 0.73 | |
| Financial stress score (continuous) | 0.96 (0.9 to 1.1) | 0.41 | 0.89 (0.8 to 1.0) | 0.11 | |
| Resilience score (continuous) | 0.82 (0.6 to 1.1) | 0.10 | 0.77 (0.6 to 1.0) | 0.11 | |
| Heaviness of smoking index | 0.93 | 0.63 | |||
| Low | Ref | – | – | ||
| Moderate | 0.92 (0.6 to 1.4) | 0.78 (0.5 to 1.3) | |||
| High | 0.92 (0.4 to 1.7) | 0.86 (0.4 to 1.8) | |||
| Enjoyment of smoking | 0.01 | 0.02 | |||
| Not at all | Ref | – | – | ||
| Not particularly | 0.44 (0.2 to 0.9) | 0.44 (0.2 to 1.2) | |||
| Quite a bit | 0.61 (0.3 to 1.3) | 0.79 (0.3 to 2.2) | |||
| Very much | 0.30 (0.1 to 0.7) | 0.42 (0.1 to 1.3) | |||
| Do not know | 0.32 (0.1 to 0.8) | 0.27 (0.1 to 0.8) | |||
| Friends or family who smoke | 0.17 | 0.12 | |||
| Most or all of them | Ref | – | – | ||
| About half | 0.66 (0.4 to 1.1) | 0.54 (0.3 to 0.9) | |||
| A few/less than half | 0.62 (0.4 to 0.9) | 0.56 (0.3 to 1.0) | |||
| None | 0.66 (0.3 to 1.3) | 0.87 (0.4 to 2.1) | |||
| Quit attempt ever | |||||
| Yes | Ref | – | – | ||
| No | 0.85 (0.5 to 1.4) | 0.51 | 1.06 (0.6 to 1.9) | 0.85 | |
| Quit self-efficacy | 0.79 | 0.59 | |||
| Not at all sure | Ref | – | – | ||
| Slightly sure | 1.21 (0.7 to 2.1) | 0.79 (0.4 to 1.5) | |||
| Moderately sure | 1.04 (0.6 to 1.7) | 0.79 (0.4 to 1.5) | |||
| Very sure | 0.89 (0.5 to 1.6) | 0.51 (0.2 to 1.1) | |||
| Extremely sure | 1.38 (0.7 to 2.8) | 0.79 (0.3 to 2.0) | |||
| Quit attempt approach preference | 0.02 | 0.08 | |||
| No preference | Ref | – | – | ||
| Gradual reduction of cigarettes | 1.99 (1.1 to 3.6) | 2.07 (1.0 to 4.2) | |||
| Stop smoking suddenly | 1.29 (0.7 to 2.4) | 1.43 (0.7 to 3.0) | |||
| Motivation to quit | <0.01 | <0.01 | |||
| High | Ref | – | – | ||
| Moderate | 0.62 (0.4 to 1.0) | 0.50 (0.3 to 0.9) | |||
| Low | 0.39 (0.2 to 0.6) | 0.26 (0.1 to 0.5) | |||
| Alcohol use | 0.95 | 0.81 | |||
| No use | Ref | – | – | ||
| Non-risky use | 1.09 (0.6 to 2.0) | 1.11 (0.5 to 2.3) | |||
| Risky use | 1.04 (0.7 to 1.6) | 1.19 (0.7 to 2.0) | |||
*Only those variables entered into the logistic regression shown.
p Values from Wald χ2 test.