Effects on frequency
headaches, headache
The LMM was run for the frequency of headaches. The results showed that the interaction effect among fixed factors was significant (Pairwise comparisons over the time points—By groups and response variablesThe frequency could get any of the following forms: (a) experiencing one headache day per 4 weeks; (b) one headache day in 2 weeks; (c) two or three headache days per week; or (d) more than three headache days per week during the past 4 weeks—over 3 months. EME, eye movement exercise; DB, diaphragmatic breathing, and control across three assessment points—that is, pre‐test, post‐test, and follow‐up. Note. * = 