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. 2017 Jul 25;5:e3556. doi: 10.7717/peerj.3556

Table 2. The demographic and clinical characteristics of the participants.

Control G (N = 25) Migraine without aura G (N = 24) Tension-Type headache G (N = 25) P-value
Age (mean ± SD) 26.3 ± 9.8 28 ± 10.5 22.6 ± 7.1 0.008a
Type of occlusion (percentage of class I/II/III) 54.5/31.8/13.6 37.5/41.6/20.8 64/24/12 0.38
Clicked TMJ (% ) 29.6 36 42.3 0.79
Years of headache (mean ± SD) 10.1 ± 7 5.2 ± 3 0.001
Frequency of headache( times in month) 9 ± 6 9.5 ± 7 0.74

Notes.

a

A significant difference between TTH and MOA and between TTH and control group based on 4 Mann–Whitney test.