Table 4 Multivariate regression analyses of the associations between head injury and relative headache status in HUNT3 versus HUNT2 with regard both to suffering from headache as well as to change in headache frequency
From: Headache following head injury: a population-based longitudinal cohort study (HUNT)
All | Men | Women | |||
|---|---|---|---|---|---|
Adjustment for age and sex | Complete adjustmenta | Complete adjustmenta | Complete adjustmenta | ||
N | N (OR, 95% CI) | N (OR, 95% CI) | N (OR, 95% CI) | N (OR, 95% CI) | |
Improvement of headache status1 | |||||
No head injury (reference) | 25,662 | 5413 (ref.) | 5413 (ref.) | 1852 (ref.) | 3561 (ref.) |
Any head injury | 294 | 59 (1.22, 0.89–1.68) | 59 (1.21, 0.85–1,72) | 28 (1.30, 0.81–2.08) | 31 (1.06, 0.63–1.80) |
Minimal head injury | 35 | 12 (1.62, 0.76–3.44) | 12 (1.35, 0.56–3.24) | 2 (0.76, 0.15–3.82) | 10 (1.65, 0.54–4.98) |
Mild head injury | 211 | 40 (1.26, 0.86–1.84) | 40 (1.27, 0.83–1.95) | 20 (1.39, 0.79–2.47) | 20 (1.09, 0.58–2.07) |
Moderate head injury | 32 | 6 (1.16, 0.44–3.02 | 6 (1.23, 0.45–3.31) | 5 (1.51, 0.51–4.42) | 1 (0.66, 0.06–7.63) |
Stable headache suffering and frequency2 | |||||
No head injury (reference) | 25,662 | 4234 (ref.) | 4234 (ref.) | 1302 (ref.) | 2932 (ref.) |
Any head injury | 294 | 55 (1.55, 1.11–2.15) | 55 (1.60, 1.12–2.28) | 28 (1.86, 1.16–2.99) | 27 (1.30, 0.76–2.21) |
Minimal head injury | 35 | 5 (0.88, 0.32–2.45) | 5 (0.71, 0.23–2.25) | 3 (1.37, 0.33–5.68) | 2 (0.28, 0.03–2.39) |
Mild head injury | 211 | 40 (1.71, 1.15–2.53) | 40 (1.83, 1.20–2.79) | 20 (2.14, 1.22–3.76) | 20 (1.48, 0.79–2.77) |
Moderate head injury | 32 | 5 (1.26, 0.44–3.61) | 5 (1.06, 0.33–3.40) | 3 (0.87, 0.19–4.02) | 2 (1.40, 0.18–10.82) |
Exacerbation of headache status3 | |||||
No head injury (reference) | 25,662 | 3026 (ref.) | 3026 (ref.) | 1181 (ref.) | 1845 (ref.) |
Any head injury | 294 | 43 (1.55, 1.09–2.21) | 43 (1.52, 1.02–2.25) | 26 (1.87, 1.14–3.05) | 17 (1.08, 0.56–2.08) |
Minimal head injury | 35 | 1 (0.24, 0.03–1.83) | 1 (0.26, 0.03–2.03) | 1 (0.62, 0.07–5.16) | 0 (−) |
Mild head injury | 211 | 37 (2.00, 1.35–2.98) | 37 (1.93, 1.24–3.02) | 22 (2.40, 1.37–4.21) | 15 (1.37, 0.66–2.85) |
Moderate head injury | 32 | 5 (1.56, 0.55–4.41) | 5 (1.65, 0.57–4.79) | 3 (1.42, 0.39–5.22) | 2 (2.09, 0.27–16.16) |