| Questions | Males | Females | Ratio m/f | Total | P-value |
| Question A: Headache days in last 3 months Mean (95% CI) Range | - - 5.3 (1 - 9.5) 0 - 42 | - - 6 (2.5 - 9.4) 0 - 60 | - - 0.8:1 - | - - 5.7 (3.1 - 8.4) 0 - 60 | - - - 0.873 |
| Question B: Pain intensity Mean (95% CI) Range | - 4.1 (2.3 - 5.8) 0 - 10 | - 4.2 (3.1 - 5.4) 0 - 10 | - 1:1 - | - 4.2 (3.3 - 5.1) 0 - 10 | - 0.943 - |
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