Research Article
Body Mass Index and Primary Headache: A Hospital-Based Study in China
Table 2
Comparison of BMI and other variables in the migraine group: EM vs. CM.
| | Variable | EM (n = 369) | CM (n =177) | p value |
| | Female (n, %) | 289 (77.5%) | 143 (82.7%) | 0.176 | | Age (years, mean ± SD) | 40.71 ± 20.34 | 46.9 ± 16.89 | <0.001 | | Marriage (n, %) | | | 0.001 | | Married | 304 (82.4%) | 164 (92.7%) | | | | 65 (17.6%) | 13 (7.3%) | | | Education level (n, %) | | | <0.001 | | Primary school or less | 192 (52.7%) | 127 (75.6%) | | | High school or technical school | 81 (22.3%) | 28 (16.7%) | | | University | 91 (25%) | 13 (7.7%) | | | Elevated blood pressure (n, %) | 68 (18.9%) | 50 (29.8%) | 0.005 | | Smoking (n, %) | 40 (11.4%) | 25 (15.3%) | 0.211 | | Alcohol consumption (n, %) | 17 (4.9%) | 15 (9.2%) | 0.06 | | Pain intensity (mean ± SD) | 4.5 ± 2.40 | 4.4 ± 2.62 | 0.714 | | Medication overuse | 2 (2.1%) | 94 (97.9%) | <0.001 | | Average headache days/month (days, mean ± SD) | 3.94 ± 5.18 | 21.79 ± 8.95 | <0.001 | | Family headache history (n, %) | 183 (68.8%) | 83 (31.2%) | 0.385 | | Duration of headache history (years, mean ± SD) | 10.83 ± 10.60 | 14.74± 11.98 | <0.001 | | BMI (mean ± SD) | 21.90 ± 2.88 | 23.34 ± 2.34 | <0.001 | | Waist/height ratio | 0.45 ± 0.08 | 0.45 ± 0.11 | 0.682 |
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Notes: #Single patients included unmarried, divorced, and widowed individuals. SD: standard deviation; EM: episodic migraine; CM: chronic migraine.
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