Multivariable ordinal regression model of associations with level of motivation to stop smoking among current adult tobacco smokers in Germany (unweighted data)
| Higher rating on the MTSS (1-7) | ||
| Full sample analysis* (wave 1–33, n=17 243)† | Subsample analysis* (wave 13–33, n=11 458)‡ | |
| ORadj(95% CI)§ | ORadj(95% CI)§ | |
| Age (per 10 years) | 0.97 (0.96 to 0.99) | 0.95 (0.93 to 0.98) |
| Gender | ||
| Men (ref) | 1.00 | 1.00 |
| Women | 1.03 (0.98 to 1.10) | 1.00 (0.93 to 1.07) |
| Level of education | ||
| Low (ref) | 1.00 | 1.00 |
| Middle | 1.10 (1.03 to 1.18) | 1.07 (0.98 to 1.16) |
| High | 1.40 (1.29 to 1.51) | 1.42 (1.28 to 1.57) |
| Income¶ | 0.99 (0.96 to 1.03) | 1.00 (0.96 to 1.05) |
| Number of cigarettes per day (per 10 cigarettes per day) | 0.82 (0.79 to 0.86) | 0.80 (0.75 to 0.84) |
| Recent quit attempts | ||
| No attempt in the past 12 months (ref) | 1.00 | 1.00 |
| At least one attempt 7–12 months ago | 4.00 (3.59 to 4.45) | 4.96 (4.26 to 5.76) |
| At least one attempt 0–6 months ago | 7.54 (6.78 to 8.40) | 8.37 (7.25 to 9.67) |
| Time spent with urges to smoke | 1.05 (1.01 to 1.10) | 1.07 (1.01 to 1.12) |
| Strength of urges to smoke | 0.97 (0.93 to 1.01) | 1.00 (0.95 to 1.06) |
| Use of e-cigarettes | ||
| Never (ref) | 1.00 | 1.00 |
| Ex-experimental | 1.42 (1.32 to 1.53) | 1.45 (1.31 to 1.60) |
| Ex-regular | 1.30 (1.10 to 1.55) | 1.44 (1.16 to 1.79) |
| Current | 1.71 (1.48 to 1.99) | 1.68 (1.38 to 2.04) |
| Use of HTP | ||
| Never (ref) | – | 1.00 |
| Ex-experimental | – | 0.81 (0.70 to 0.93) |
| Ex-regular | – | 0.97 (0.62 to 1.53) |
| Current | – | 1.01 (0.65 to 1.55) |
| Use of waterpipe | ||
| Never (ref) | – | 1.00 |
| Ex-experimental | – | 1.07 (0.97 to 1.17) |
| Ex-regular | – | 0.95 (0.78 to 1.16) |
| Current | – | 0.65 (0.53 to 0.79) |
*Year of the survey added as a design factor.
†10.0% (n=1726) of cases had to be excluded due to missing data in at least one independent variable.
‡7.2% (n=895) of cases had to be excluded due to missing data in at least one independent variable.
§OR of a higher level on the MTSS (1–7) for a one-unit increase in a continuous predictor, unless otherwise stated, or change in level for a categorical predictor.
¶Range from 0 (0 Euro income) to 7 (7,000 or more Euro income).
.HTP, heated tobacco products; MTSS, Motivation To Stop Scale.