Table 1: Baseline characteristics of Colon Check participants.

Characteristic	Penticton (start date January 2009)	Powell River(start date October 2009)	Downtown Vancouver (start date April 2010)	Other*	Total
No. (%) of participants	6732 (41.5)	3026 (18.6)	4266 (26.3)	2210 (13.6)	16 234
Age, yr, mean ± SD	61.8 ± 6.8	61.1 ± 6.6	63.5 ± 6.0	60 ± 6.6	62.0 ± 6.6
Sex, %
Male	45.2	47.7	54.9	54.3	49.5
Female	54.8	52.3	45.1	45.7	50.5

Note: SD = standard deviation.

*Participants who lived outside the participating communities but were referred by a primary care physician working in one of those communities.