Table 1 Demographics and health related variables
From: Headache following head injury: a population-based longitudinal cohort study (HUNT)
Head injury population | Controls | |
|---|---|---|
Variable | ||
Total number of subjects | 294 | 25,662 |
Age at participation in HUNT2 (years) (mean ± SD) | 48.4 ± 14.7 | 47.3 ± 13.1 |
Age at injury (first injury) (years) (mean ± SD) | 53.8 ± 15.2 | |
Age at participation in HUNT3 (years) (mean ± SD) | 59.6 ± 14.7 | 58.5 ± 13.1 |
Time from head injury (first injury) to HUNT3 (years) (mean ± SD) | 4.9 ± 3.2 | |
Female | 137 (46.5) | 14,639 (57.0) |
Duration of education (HUNT2) (n (%)) | ||
≤ 9 years | 82 (27.9) | 7535 (29.4) |
10–12 years | 135 (45.9) | 11,663 (45.4) |
≥ 13 years | 73 (24.8) | 6007 (23.4) |
HADS score (mean ± SD) (HUNT2) | 8.8 ± 5.7 | 7.4 ± 5.4 |
HADS score (mean ± SD) (HUNT3) | 8.5 ± 6.0 | 7.3 ± 5.4 |
BMI (mean ± SD) (HUNT2) | 26.2 ± 3.9 | 26.0 ± 3.6 |
BMI (mean ± SD) (HUNT3) | 27.4 ± 4.3 | 27.4 ± 4.3 |
Daily smoking (HUNT2) (n (%)) | 62 (21.1) | 6278 (24.5) |
Daily and occasionally smoking (HUNT3) (n (%)) | 73 (24.8) | 5338 (20.8) |
Self-reported health poor or less than good (HUNT2) (n (%)) | 82 (27.9) | 5451 (21.2) |
Self-reported health poor or less than good (HUNT3) (n (%)) | 102 (34.7) | 6883 (26.8) |
Headache sufferer (n (%)) | ||
HUNT2 | 129 (43.9) | 10,697 (41.7) |
HUNT3 | 111 (37.8) | 8492 (33.1) |
CAGEa ≥ 1 (HUNT2) (n (%)) | 56 (19.0) | 3721 (14.5) |
CAGEa ≥ 1 (HUNT3) (n (%)) | 58 (19.7) | 3834 (14.9) |