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Table 4 Obesity by headache frequency

From: Migraine, obesity and body fat distribution – a population-based study

   Non-obese (BMI) A Obesity (BMI) B Non-obese (WC) C Abdominal obesity (WC)D
Headache status Headache frequency N OR (95% CI) N N OR (95% CI)
No headache   18,929 1.0 (Ref.) 5424 14,271 1.0 (Ref.) 10,066
Tension-type headache Episodic (≤14 days/month) 3141 1.15** (1.06–1.25) 964 2320 1.15*** (1.07–1.24) 1778
  Chronic (> 14 days/month) 245 1.27 (0.99–1.62) 90 188 1.03 (0.82–1.30) 147
Migraine Episodic (≤14 days/month) 3015 1.25*** (1.16–1.36) 995 2191 1.15*** (1.07–1.24) 1805
  Chronic (> 14 days/month) 174 1.53** (1.16–2.02) 74 120 1.36* (1.04–1.76) S125
  1. OR odds ratio, CI confidence intervals, Ref. reference category, BMI body mass index
  2. ABody-mass index < 30. BBody-mass index ≥30. CWaist circumference ≤ 88 cm for women, ≤102 cm for men. DWaist circumference > 88 cm for women, > 102 cm for men. *p < 0.05; **p < 0.01; ***p < 0.001. Analyses are adjusted for age, sex, smoking, depression (HADS-D) and presence of diabetes