Table 10.

Descriptive Statistics/Results From Conditional Logistic Regression Analysis of AF/AFl in the Swedish Population (1987–2008): Siblings in Families With at Least 2 Siblings

	Number of Cases	Odds Ratio (95% CI) for AF/AFl in at Least 1 Sibling
Excluding CHD	37 623	3.27 (3.17 to 3.38)
Excluding HF	47 725	3.14 (3.05 to 3.23)
Born in Sweden	55 774	3.08 (3.00 to 3.16)
Born outside Sweden	311	4.92 (2.87 to 8.44)
Low level of education	19 075	3.01 (2.89 to 3.13)
Middle level of education	23 131	3.12 (3.00 to 3.25)
High level of education	13 879	3.15 (2.98 to 3.33)

AF/AFl indicates atrial fibrillation/atrial flutter; CHD, coronary heart disease; HF, heart failure.