Community intervention study about Cancer screening behavior of Colorectal cancer

Interventions: Tailored-Matched group: Stage of colorectal cancer screening behavior based on TTM model in each participants were assessed, they are shown the tailored message that matches their stage.
Tailored-Nonmatched group: Stage of colorectal cancer screening behavior based on TTM model in each participants were assessed, they are shown the message that, although we use same messages as Tailored-Matched group, does not matches their stages.
Common message group: Participants were uniformly shown the single message that was developed with a social marketing approach. This message was conposed of the common element to three messages
Control group: Participants were uniformly shown the message of cancer screening that arbitrary local government uses
Primary outcome(s): participation rate in colorectal cancer screening
Study Design: Parallel Randomized