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Baseline characteristics of the brief intervention and business as usual groups
| Brief intervention (N=24) | Business as usual (N=36) | |
|---|---|---|
| Age, mean (95% CI) | 43.0 (40.6 to 45.5) | 41.4 (38.8 to 44.0) |
| Gender | ||
| Women (% (n)) | 92 (22) | 83 (30) |
| Men (% (n)) | 8 (2) | 17 (6) |
| Co-occurrence of migraine, % (n) | 67 (16) | 72 (26) |
| Mean years of chronic headache (95% CI) | 16.4 (12.3 to 20.6) | 16.8 (13.1 to 20.4) |
| Mean years of medication overuse (95% CI) | 8.8 (6.9 to 10.8) | 8.6 (6.5 to 10.8) |
