Table 1.

Clinical profile of the study participants

	No headache	Non-migraine headache	Migraine
Morbid sample (n=4748)
Women (%)	51.7	60.2	69.8
Mean age (SD)	67.0 (11.2)	58.7 (12.9)	51.5 (12.5)
Antihypertensive use (%)	86.9	84.4	83.0
Diabetes (%)	22.5	22.5	20.9
Daily smokers (%)	19.3	24.6	23.1
Mean body mass index (SD)	28.6 (4.5)	29.0 (4.9)	28.7 (4.8)
Random sample (n=1851)
Women (%)	46.8	63.2	75.0
Mean age (SD)	53.9 (16.5)	43.6 (13.7)	39.6 (11.1)
Antihypertensive use (%)	13.1	7.2	7.0
Diabetes (%)	4.1	1.2	0.0
Daily smokers (%)	27.3	33.3	34.8
Mean body mass index (SD)	26.5 (4.0)	26.1 (4.0)	25.8 (3.8)