Table 1.
Characteristics of cross-sectional KORA S4.
| Current smoker | Former smoker | Never smoker | Pa | ||
|---|---|---|---|---|---|
| Current versus former smoker | Current versus never smoker | ||||
| Male (N = 646) | |||||
| N (%) | 125 (19.3%) | 321 (49.7%) | 200 (31.0%) | ||
| Age (years) | 62.2 ±5.3 | 65.3 ± 5.3 | 64.1 ± 5.6 | 7.9e-08 | 3.0e-03 |
| BMI (kg/m2) | 27.0 ±3.6 | 28.9 ±3.6 | 27.8 ±3.4 | 1.5e-06 | 6.5e-02 |
| Alcohol consumption (g/day) | 27.5 ±29.0 | 24.1 ±24.3 | 20.5 ±21.3 | 0.25 | 0.02 |
| Pack yearsb | 39.3 ±22.4 | ||||
| Quit timec (years) | 23.6 ±12.6 | ||||
| Female (N = 595) | |||||
| N (%) | 70 (11.8%) | 130 (21.8%) | 395 (66.4%) | ||
| Age (years) | 61.3 ±5.2 | 64.0 ±5.2 | 64.6 ±5.3 | 7.5e-04 | 5.9e-06 |
| BMI (kg/m2) | 27.2 ±4.5 | 28.7 ±5.0 | 28.5 ±4.6 | 0.029 | 0.02 |
| Alcohol consumption (g/day) | 6.5 ±10.9 | 10.0 ±12.8 | 7.5 ±11.1 | 0.042 | 0.48 |
| Pack yearsb | 25.8 ±15.3 | ||||
| Quit timec (years) | 20.9 ±13.1 | ||||
The study characteristics of KORA S4 are shown separately for current, former and never smokers. Values are shown as mean ±SD when appropriate. aP-values are calculated by student's t-test; bcalculated as the number of cigarettes consumed per day × years of smoking/20; c the time till the survey is conducted since the person has stopped smoking. BMI: body mass index.