The Relationship between Infant Colic and Migraine as well as Tension-Type Headache: A Meta-Analysis

Table 2

Meta-analysis results of the included studies.

Outcome	No. of studies		OR [95% CI]	Heterogeneity
				χ^2	df	I^2 (%)	-Q test
Colic in migraine	7	0.005	2.51 [1.32, 4.77]	44.14	6	86	<0.00001
Colic in TTH	2	0.51	1.17 [0.73, 1.89]	2.41	1	59	0.12
Migraine vs. TTH	2	0.02	0.33 [0.13, 0.86]	7.29	1	86	0.007

OR: odds ratio.