Identifying Chinese Medicine Patterns of Tension-Type Headache and Understanding Its Subgroups

Table 23

Group comparisons on MIDAS, PSS, and TTH subtypes between Asian and Non-Asian participants.

MIDAS	Asian vs. Non-Asian			Chi	t-test
	MIDAS LEVEL			0.007	N/A
	MIDAS SUM			N/A	0.122
	MIDAS a (item)			N/A	0.073
	MIDAS B (item)			N/A	0.000
PSS	Asian vs. Non-Asian			Chi	t-test
	PSS SUM			N/A	0.615
	PSS perceived distress			N/A	0.445
	PSS perceived coping ability			N/A	0.000
TTH subtypes	Asian	Non-Asian	Total	Chi	t-test
(1) Infrequent ETTH	19	4	23	0.005	N/A
(2) Frequent ETTH	47	56	103
(3) Chronic TTH	18	20	38
Total	84	80	164

: the mean difference is significant at the 0.05 level.