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Table 2 1 year migraine prevalence and adjusted odds ratios (AOR) for BMI categories

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

BMI

N

Prevalence n (%)

AOR (95 % CI)

p

Normal

2,469

212 (8.6 %)

Reference

 

Underweight

262

27 (10.3 %)

1.22 (0.80–1.87)

0.359

Overweight

1,064

100 (9.4 %)

1.08 (0.84–1.39)

0.541

Obese

1,044

96 (9.2 %)

1.04 (0.80–1.34)

0.795

Morbidly obese

190

32 (16.8 %)

2.10 (1.39–3.15)

0.000

Total

5,029

467 (9.3 %)

  
  1. Overall χ2 = 14.661
  2. p = 0.005