Table 1.
Characteristics of the study population
| AOK N = 1081 | BKK N = 1054 | BARMER GEK N = 720 | TK N = 704 | DAK N = 539 | IKK N = 293 | Others N = 414 | Private N = 813 | All N = 5618 | |
|---|---|---|---|---|---|---|---|---|---|
| Age (%) | |||||||||
| Mean (in years) | 49.6 | 49.4 | 53.3 | 49.9 | 55.7 | 47.8 | 53.0 | 54.9 | 51.6 |
| Sex (%) | |||||||||
| Female | 53.0 | 54.2 | 55.7 | 53.4 | 58.4 | 56.3 | 53.6 | 30.6 | 51.1 |
| Socioeconomic Status (%) | |||||||||
| Lower class | 35.6 | 19.6 | 17.4 | 10.9 | 14.8 | 25.6 | 17.9 | 7.4 | 19.2 |
| Middle class | 57.7 | 64.6 | 64.4 | 60.5 | 70.7 | 62.3 | 69.2 | 48.1 | 61.1 |
| Upper class | 6.7 | 15.8 | 18.3 | 28.7 | 14.6 | 12.1 | 13.0 | 44.5 | 19.7 |
| Region of residence (%) | |||||||||
| West Germany | 72.9 | 82.7 | 75.6 | 81.2 | 81.4 | 52.2 | 75.6 | 90.0 | 78.6 |
| East Germany (incl. Berlin) | 27.1 | 17.3 | 24.4 | 18.8 | 18.6 | 47.8 | 24.4 | 10.0 | 21.5 |
| Health status (%) | |||||||||
| Excellent, very good | 25.3 | 30.5 | 28.3 | 31.1 | 21.9 | 33.6 | 25.1 | 29.2 | 28.1 |
| Good | 49.2 | 50.4 | 50.7 | 53.5 | 55.3 | 50.5 | 52.8 | 55.0 | 51.9 |
| Less good, poor | 25.5 | 19.1 | 21.0 | 15.4 | 22.8 | 15.9 | 22.1 | 15.8 | 20.0 |
| Town size (%) | |||||||||
| Up to 10,000 residents | 35.9 | 27.1 | 21.5 | 18.3 | 23.0 | 37.2 | 22.7 | 21.4 | 26.0 |
| 10,001–100,000 residents | 45.2 | 39.4 | 45.3 | 41.8 | 51.4 | 41.0 | 44.2 | 45.6 | 44.1 |
| 100,001–500,000 residents | 9.6 | 15.9 | 18.1 | 18.2 | 11.7 | 12.3 | 12.3 | 14.9 | 14.6 |
| From 500,000 residents | 9.3 | 17.6 | 15.1 | 21.7 | 13.9 | 9.6 | 9.6 | 18.1 | 15.3 |