Table 1.

Enrollment in health screening and subsequent participation in follow-ups

Admission cohorts	Year
	2006	2007	2008	2009	2010	2011	2012	2013	2014
2006	1605a		1137b			874c			649d
2007		2068a		1483b		1155c			782d
2008			1424a		1066b	949c			654d
2009				676a		425b	321c		269d
2010					128a		63b	59c	53d
2011						156a		71b	66c
2012							56a		23b
2013								39a
2014									30a

^aEnrollment at baseline (N = 6182, across admission cohorts)

^b1^st follow-up participation (n = 4268, across admission cohorts)

^c2^nd follow-up participation (n = 3424, across admission cohorts)

^d3^rd follow-up participation (n = 2407, across admission cohorts)