Table 3. Quality of life outcomes from baseline to end if treatment and follow-up.

Variable	Group	Baseline	End of Treatment	Follow-up	Group*Time Interaction
HDI	Massage	26.5±3.51	19.6±3.38	17.8±3.11	F(4,52) = 3.26 p = 0.019
	Placebo	29.1±3.30	24.3±3.18	26.0±2.92
	Wait-list	21.6±3.23	22.6±3.11	20.4±2.86
HIT-6	Massage	56.3±1.57	51.1±1.54	50.2±1.57	F(4,52) = 3.27 p = 0.018
	Placebo	54.7±1.48	50.5±1.45	52.3±1.47
	Wait-list	53.2±1.45	53.4±1.41	52.1±1.44

Data are presented as mean ± standard error. HDI, Headache Disability Index; HIT-6, Headache Impact Test.