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Table 4 Proportions with, and adjusted odds ratios (AOR) for, frequent migraine attacks (10–14 days/month) among different BMI categories

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

BMI

Frequent migraine n/denominator (%)

AOR (95 % CI)

p

Normal

10/121 (8.3 %)

Reference

 

Underweight

0/13 (0.0 %)

0.000

0.999

Overweight

5/65 (7.7 %)

1.03 (0.32–3.29)

0.960

Obese

8/53 (15.1 %)

2.11 (0.74–5.98)

0.161

Morbidly obese

1/18 (5.6 %)

0.64 (0.08–5.41)

0.680

Total

24/270 (8.9 %)

  
  1. Overall χ2 = 4.208
  2. p = 0.379