Association between Body Mass Index and Migraine: A Survey of Adult Population in China

Table 7

Frequency headache was significant associated with BMI.

Weight category	<10 days/months		10–14 days/months
	n	(%)	n	(%)
Underweight ()	16	100	0	0	0
Normal ()	108	90	12	10	<0.0001
Overweight ()	18	72	7	28	0.0006
Obese/morbidly obese ()	3	60	2	40	0.2392