Phenotypic features of chronic migraine

Table 7 Associations of accompanying symptoms with each other

		Nausea	Vomiting	Phonophobia	Photophobia	Dizziness	Vertigo	Osmophobia
Nausea	+		51.2	86.1	77.4	19.7	14.9	57.8
	-		7.9	58.0	47.4	10.6	12.4	35.4
	p		0.001	0.001	0.001	0.008	0.445	0.006
Vomiting	+	95.3		88.2	83.1	25.0	16.5	59.8
	-	62.6		71.9	59.4	12.6	12.4	43.1
	p	0.001		0.001	0.001	0.001	0.142	0.013
Phonophobia	+	83.5	45.5		82.1	20.4	16.8	59.6
	-	52.9	22.3		27.4	6.6	6.6	19.5
	p	0.001	0.001		0.001	0.001	0.002	0.001
Photophobia	+	84.7	48.8	92.3		21.2	16.0	59.7
	-	59.3	22.1	49.6		9.3	10.5	28.0
	p	0.001	0.001	0.001		0.001	0.063	0.001
Dizziness	+	85.2	55.3	91.2	85.2		50.0	71.3
	-	73.5	34.7	73.9	64.0		6.2	32.0
	p	0.008	0.001	0.001	0.001		0.001	0.001
Vertigo	+	78.0	44.9	89.1	75.8	59.3		65.7
	-	74.3	36.8	74.3	65.9	8.8		39.9
	p	0.445	0.142	0.002	0.063	0.001		0.001
Osmophobia	+	86.4	53.5	93.5	88.8	60.8	43.6
	-	71.8	36.9	70.3	67.6	22.7	21.1
	p	0.006	0.013	0.001	0.001	0.001	0.001

In this table, + lines indicate subjects who had related symptoms, and – lines indicate subjects who did not have related symptoms

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