Education as a determinant of smoking prevalence and quit ratio
| Unadjusted estimate (95% CI)*** | Adjusted* estimate (95% CI)*** | |
| Smoking prevalence | ||
| Prevalence ratio | ||
| Primary vs tertiary education | 1.44 (1.31 to 1.58) | 1.58 (1.43 to 1.73) |
| Secondary vs tertiary education | 1.56 (1.45 to 1.68) | 1.62 (1.50 to 1.74) |
| RII (least to most educated) | 1.79 (1.58 to 2.01) | 2.04 (1.80 to 2.30) |
| SII (least to most educated) | 0.13 (0.10 to 0.15) | 0.15 (0.13 to 0.18) |
| Smoking cessation (quit ratio) | ||
| Prevalence ratio | ||
| Primary vs tertiary education | 0.83 (0.77 to 0.90) | 0.82 (0.76 to 0.89) |
| Secondary vs tertiary education | 0.84 (0.80 to 0.90) | 0.83 (0.78 to 0.88) |
| RII (least to most educated) | 0.75 (0.68 to 0.83) | 0.73 (0.66 to 0.81) |
| SII (least to most educated) | −0.17 (−0.20 to −0.13) | −0.18 (–0.22 to −0.14) |
***All P values are <0.001.
*Age, gender, nationality and time trend.
RII, relative index of inequality; SII, slope index of inequality.