Table 2.

Beliefs about the relationship between caffeine consumption and headache.

Question	Response	Caffeine consumers (n = 396)
Why do you consume caffeine?	To relieve headache	229 (57.8%)
	To improve alertness/energy	317 (80.1%)
	Habit	152 (38.4%)
	Flavor/enjoyment	262 (66.2)
Do you believe that caffeine improves your headache?	Yes	120 (30.3%)
	Sometimes	149 (37.6%)
	No	88 (22.2%)
	I do not know	39 (9.8%)
Do you believe that caffeine makes your headache worse or triggers headaches?	Yes	20 (5.1%)
	Sometimes	76 (19.2%)
	No	216 (54.5%)
	I do not know	84 (21.2%)