Table 4.

Characteristics of Headache Attacks in Relation to Interatrial Septal Anatomy in Patients With MA (n=72)

	No PFO, No ASA n=43	Isolated PFO n=14	Isolated ASA n=2	PFO With ASA n=13	P Value
Median duration, h (IQ1‐IQ3)	4 (1‐24)	1.5 (0.8‐4)	36 (0.25‐72)	24 (1.4‐24)	0.51
Median severity score, scale 0 to 10 (IQ1‐IQ3)	7 (5‐8)	7.5 (6‐8)	6.5 (5‐8)	7 (6‐8)	0.62
Frequency of migraine, n of patients					0.37
≥Once a month	21	9	0	7
≥Once a week	22	5	2	6

Kruskal‐Wallis tests were performed to compare headache characteristics between groups. ASA indicates atrial septal aneurysm; IQ, interquartile; MA, migraine with aura; n, number; PFO, patent foramen ovale.