The red ear syndrome

Table 4 Characteristics of primary and secondary forms of red ear syndrome (RES)

	Primary RES	Secondary RES
Number	74	26
Median age of onset ^*	34 years (range: 5–74)	45 years (range: 9–76)
Gender	Females: 37 (51%)	Females: 17 (65%)
Gender	Males: 36 (49%)	Males: 9 (35%)
RE episodes: frequency ^***	≥ 1 attack/day: 17 (53%)	≥ 1 attack/day: 17 (77%)
RE episodes: frequency ^***	< 1 attack/day: 15 (47%)	< 1 attack/day: 5 (23%)
RE episodes: duration ^**	<4 hours: 47 (94%)	<4 hours: 13 (68%)
RE episodes: duration ^**	>4 hours: 3 (6%)	>4 hours: 6 (32%)
Triggered attacks	16/74 (22%)	18/26 (69%)
Personal history of migraine	60/74 (81%)	6/26 (23%)

*The median age of onset in primary RES is based on 34 patients for whom clear cut data were available.
^**Clear cut duration of attacks was available for 50 patients with primary RES and 19 patients with secondary RES.
^***Data on attack frequency were available for 32 and 22 patients with respectively primary and secondary RES.

ISSN: 1129-2377