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Table 3 Proportions with, and adjusted odds ratios (AOR) for, severe migraine (VAS ≥8) among different BMI categories

From: Body mass index and migraine: a survey of the Chinese adult population

BMI Severe migraine n/denominator (%) AOR (95 % CI) p
Normal 41/147 (27.9 %) Reference  
Underweight 11/23 (47.8 %) 2.32 (0.94–5.75) 0.070
Overweight 20/82 (24.4 %) 0.83 (0.44–1.57) 0.569
Obese 16/73 (21.9 %) 0.72 (0.36–1.43) 0.348
Morbidly obese 8/25 (32.0 %) 1.13 (0.45–2.86) 0.793
Total 96/350 (27.4 %)   
  1. Overall χ2 = 6.580
  2. p = 0.160