Table 1.
Characteristics of the regional study populations
| DHS (Dortmund) | KORA (Augsburg) | SHIP (Pomerania) | |
|---|---|---|---|
| n = 1,134a (n = 1,312)b | n = 2,805a | n = 2,597a (n = 3,300)c | |
| Characteristic | |||
| Age (range) | 35–75 (25–75) | 35–75 | 35–75 (25–80) |
| Mean age (years) | 55.6 (52.1) | 54.6 | 54.9 (54.5) |
| Women (%) | 52.4 (52.9) | 52.2 | 52.3 (51.9) |
| School education ≤9 years (%) | 54.7 (49.5) | 57.6 | 40.7 (40.5) |
| Current smoker (%) | 24.8 (25.5) | 20.3 | 25.7 (25.7) |
| Physical activity >2 h/week (%) | 31.1 (32.1) | 36.3 | 22.4 (22.2) |
| Median alcohol intake (g/d) | 2.9 (2.9) | 6.8 | 4.9 (4.4) |
| BMI ≥ 30 kg/m2 (%) | 28.8 (26.4) | 25.9 | 32.4 (30.4) |
| Mean systolic blood pressure (mmHg) | 143.0 (140.8) | 130.0 | 133.1 (132.5) |
| Mean diastolic blood pressure (mmHg) | 87.9 (86.8) | 82.5 | 82.7 (81.4) |
| History of hypertension (%) | 38.3 (35.2) | 44.2 | 51.6 (50.4) |
| History of myocardial infarction (%) | 4.3 (3.7) | 3.1 | 4.0 (4.3) |
| History of diabetes (%) | 8.7 (7.6) | 6.7 | 10.4 (11.2) |
| History of stroke (%) | 2. 6 (2.2) | 1.7 | 2.7 (3.0) |
| History of cancer (%) | 5.1 (4.6) | 5.0 | 5.4 (5.8) |
| Any headache during the last 6 months (%) | 45.3 (48.6) | 54.6 | 45.0 (45.5) |
| Migraine (%) | 12.7 (13.0) | 10.5 | 9.7 (9.5) |
| Complete criteria (%) | 8.0 (8.5) | 7.9 | 4.4 (4.3) |
| Probable criteria (%) | 4.7 (4.5) | 2.6 | 5.3 (5.2) |
| Tension-type headache (%) | 24.2 (26.8) | 35.0 | 27.4 (27.7) |
| Complete criteria (%) | 15.7 (17.5) | 23.6 | 15.5 (15.8) |
| Probable criteria (%) | 8.5 (9.2) | 11.4 | 11.9 (11.9) |
aAge group 35–75 years
bAge group 25–75 in Dortmund Health Study (DHS)
cAge group 25–88 years in the Study of Health in Pomerania (SHIP)