. Author manuscript; available in PMC: 2009 Aug 10.

Published in final edited form as: Am J Epidemiol. 2007 Mar 10;165(9):1076–1087. doi: 10.1093/aje/kwk115

Table 1.

Examinations for participants in the Reykjavik Study (1967–1996) and AGES-Reykjavik (2002–2004)^*.

			Reykjavik Study Number of Participants
		Subcohort	B	C	A	D	E	F
		Total Sample
Stage of Reykjavik Study	Dates of Examination	Men	2,955	2,743	2,755	2,282	2,106	2,081
Stage of Reykjavik Study	Dates of Examination	Women	3,101	2,990	2,936	2,429	2,191	2,225	Respondents
I	1967–1968	Men	2,203						2,203
	1968–1969	Women	2,371						2,371
II	1970–1971	Men	2,072	1,985					4,057
	1971–1972	Women	2,049	2,134					4,183
III	1974–1976	Men	1,916	1,785	1,859				5,560
	1977–1979	Women	1,014	955	1,931				3,900
IV	1979–1981	Men	1,801			1,443			3,244
	1981–1984	Women	1,968			1,619			3,587
V	1985–1987	Men	1,477				1,115		2,592
	1987–1991	Women	1,765				1,266		3,028
VI	1991–1994	Men	664					169	833
	1994–1996	Women	943					267	1,210
			AGES-Reykjavik Number of Participants
AGES-Reykjavik	2002–2004	Men	344	320	305	2	5	0	976
AGES-Reykjavik	2002–2004	Women	467	414	426	7	10	0	1,324

This table shows the cohort recruitment and examination schedule for the Reykjavik Study (RS) and the Age, Gene/Environment Susceptibility- Reykjavik Study (AGES-Reykjavik) through February, 2004. The RS cohort was randomized into six groups or subcohorts (B, C, A, D, E, and F) based on birth dates. The RS examinations were done in six stages, listed on the left, during which different sub-cohorts groups were invited. The B group was designated for longitudinal follow-up and examined at each stage. Men and women were examined separately at each stage to optimize examination clinic logistics. At the bottom, the row labeled ‘AGES-Reykjavik’ represents the number of persons from each of the RS subcohorts who were recruited among the first 2,300 participants to enter the AGES-Reykjavik Study. When AGES-Reykjavik began, 4,800 men and 6.749 women from the RS were alive (as of March, 2002).