Table 3.

Of the 31 subjects with complete family history data, the number of subjects with at least one family member of the type described in each row is shown.

Family Member Type (at least one)	Lone Atrial Fibrillation (n=13)	All other subjects without lone AF*(n=18)	p value	Non-Lone Atrial Fibrillation (n=8)	p value
Parent	11 (85%)	12 (67%)	0.26	5 (62%)	0.25
Father	7 (53%)	6 (33%)	0.25	1 (13%)	0.058
Sibling†	4 (31%)	6 (35%)	0.79	3 (38%)	0.59
Children†	2 (15%)	1 (6%)	0.36	0	0.24
Aunt or Uncle	1 (8%)	4 (22%)	0.28	1 (13%)	0.72
Grandparent	0	1 (6%)	0.39	0
Male family members	10 (77%)	11 (61%)	0.35	4 (50%)	0.20
Female family members	6 (46%)	12 (67%)	0.25	6 (75%)	0.20

^*This group consists of 8 non-lone atrial fibrillation subjects, 5 atrial flutter subjects, 3 supraventricular tachycardia subjects, and 2 normal controls.

^†All of these relatives were male