Table 2.

Associated symptoms or signs, ipsilateral to the headache, which were reported by the patients in cluster analysis.

Variables		Cluster 1	Cluster 2	p
		(n = 81)	(n = 122)
Conjunctival injection	n (%)	54 (66.67)	57 (46.72)	0.004
Lacrimation	n (%)	73 (90.12)	88 (72.13)	0.001
Miosis and/or ptosis	n (%)	58 (71.60)	42 (34.43)	<0.001
Nasal congestion	n (%)	60 (74.07)	51 (41.80)	<0.001
Rhinorrhea	n (%)	56 (69.14)	34 (27.87)	<0.001
Forehead and facial sweating	n (%)	28 (34.57)	23 (18.85)	0.012
Agitation	n (%)	60 (74.07)	49 (40.16)	<0.001
Nausea and/or vomiting during attacks	n (%)	33 (40.74)	33 (27.s05)	0.042
Phonophobia during attacks	n (%)	18 (22.22)	9 (7.38)	0.002
Vertigo during attacks	n (%)	6 (7.41)	6 (4.92)	0.465

n, number of subjects; Bold indicates p < 0.05.