. Author manuscript; available in PMC: 2013 Oct 1.

Published in final edited form as: Heart Rhythm. 2012 Jun 6;9(10):1627–1634. doi: 10.1016/j.hrthm.2012.06.008

Table 1.

Baseline characteristics of the GWAS study sample FHS H2K KORA F4

Study	FHS		H2K		KORA F4

	ERP +	ERP −	ERP +	ERP −	ERP +	ERP −
Number, total	3726		2082		1674
Females, n (%)	52 (23%)	1946 (56%)	16 (26%)	1054 (52%)	69 (42%)	809 (54%)
Age, years (mean ± SD)	37 ± 9.0	40 ± 8.8	46 ± 10.2	50 ± 10.9	60 ± 8.4	61 ± 8.8
Age, range	19 to 63	19 to 72	31 to 72	30 to 75	44 to 78	31 to 81
RR interval, ms (mean ± SD)	1060 ± 184.5	985 ± 158.2	1045 ± 180.3	977 ± 157.1	964 ± 159.9	944 ± 143.3

GWAS – genome wide association study; ERP – early repolarization pattern; FHS – Framingham Heart Study; H2K – Health 2000 Study; n – number; SD – standard deviation.