Table 2.

Comparison of outcome variables in the pretest of intervention and control groups

Variable	Pretest				Results
	intervention		control
	Mean	SD	Mean	SD
headache attacks in the previous month	6.16	1.65	6.10	1.34	p = 0.86
average number of headache days	11.94	3.54	11.06	2.78	p = 0.172
severity of headache	7.43	1.1	7.04	1.07	p = 0.076
Midas	19.06	5.31	17.47	3.85	p = 0.091