2017). It was found in Thailand that cancer-related deaths are due to risk behaviors and environment such as diet, tobacco, infection, radiation, stress, physical activity, and agents such as pollutants (Anand et al., 2008). Most common risk factors of cancer are smoking (55%), diet (20%), genetics (20%), alcohol drinking (19%), and other lifestyle components (17%) (Marlow et al., 2012), as well as aging due to older tissue proneness to the action of environmental carcinogens (Balducci, 2016). Previous study showed older person had higher prevalence of positive Fecal Immunochemical Test (FIT) than other group (Sarakarn et al., 2017).
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