Multivariate logistic regression analyses† showing associations between free/lower cost cessation medication as a trigger for thinking about quitting smoking and medication use, quit attempts and quit success in the UK and the Netherlands (weighted data)
| Medication use† | Quit attempts | Quit success† | ||||
| OR (95% CI) | OR (95% CI) | OR (95% CI) | ||||
| UK | NL | UK | NL | UK | NL | |
| Gender | ||||||
| Female | 0.67 (0.38 to 1.19) | 0.70 (0.36 to 1.35) | 1.04 (0.75 to 1.44) | 0.79 (0.59 to 1.07) | 1.28 (0.74 to 2.20) | 1.95 (1.10 to 3.45)* |
| Male | 1 | 1 | 1 | 1 | 1 | 1 |
| Age (years) | ||||||
| 18–24 | 1.67 (0.61 to 4.58) | 0.14 (0.03 to 0.71)* | 2.34 (1.33 to 4.13)** | 1.18 (0.71 to 1.97) | 0.60 (0.23 to 1.54) | 0.33 (0.10 to 1.06) |
| 25–39 | 0.97 (0.42 to 2.20) | 0.53 (0.22 to 1.26) | 1.89 (1.19 to 3.00)** | 1.75 (1.16 to 2.65)** | 0.78 (0.36 to 1.70) | 0.95 (0.43 to 2.09) |
| 40–54 | 0.66 (0.28 to 1.52) | 1.21 (0.55 to 2.69) | 1.27 (0.82 to 1.98) | 1.04 (0.70 to 1.54) | 0.69 (0.32 to 1.52) | 1.11 (0.52 to 2.38) |
| 55+ | 1 | 1 | 1 | 1 | 1 | 1 |
| Heaviness of Smoking Index | 0.99 (0.83 to 1.19) | 1.38 (1.10 to 1.72)** | 0.96 (0.86 to 1.07) | 0.88 (0.79 to 0.97)* | 0.85 (0.72 to 1.02) | 0.74 (0.61 to 0.90)** |
| Trigger | ||||||
| Yes | 4.19 (2.33 to 7.53)*** | 2.14 (1.07 to 4.29)* | 1.45 (1.04 to 2.02)* | 1.10 (0.78 to 1.56) | 0.99 (0.58 to 1.68) | 0.58 (0.28 to 1.20) |
| No | 1 | 1 | 1 | 1 | 1 | 1 |
| Income level | ||||||
| Low | 1.47 (0.70 to 3.08) | 1.68 (0.77 to 3.67) | 0.76 (0.50 to 1.16) | 1.12 (0.78 to 1.61) | 0.65 (0.32 to 1.32) | 0.45 (0.23 to 0.90)* |
| Moderate | 0.64 (0.32 to 1.27) | 2.00 (0.89 to 4.46) | 0.74 (0.50 to 1.09) | 0.74 (0.51 to 1.07) | 0.62 (0.33 to 1.18) | 0.43 (0.21 to 0.88)* |
| High | 1 | 1 | 1 | 1 | 1 | 1 |
| Education level | ||||||
| Low | 2.17 (0.87 to 5.46) | 0.49 (0.19 to 1.22) | 0.85 (0.52 to 1.38) | 0.78 (0.51 to 1.20) | 0.70 (0.29 to 1.68) | 1.30 (0.56 to 2.98) |
| Moderate | 0.49 (0.24 to 0.97)* | 0.71 (0.32 to 1.56) | 0.56 (0.38 to 0.82)** | 0.84 (0.59 to 1.21) | 0.53 (0.27 to 1.02) | 1.11 (0.57 to 2.19) |
| High | 1 | 1 | 1 | 1 | 1 | 1 |
| Time-in-sample | 0.85 (0.76 to 0.93) * | 0.93 (0.80 to 1.07) | 0.96 (0.91 to 1.02) | 0.98 (0.91 to 1.05) | 1.03 (0.94 to 1.13) | 1.12 (0.98 to 1.28) |
*P<0.05; **P<0.01; ***P<0.001.
†Only participants who made a quit attempt in the last year.
NL, Netherlands; Trigger, participant mentioned free/lower cost medication as a trigger for thinking about quitting smoking.