Table 3:

Results of analysis stratified by age and sex

	Odds Ratio (95% CI)*
Variable	All Cancer	Proximal Cancer	Distal Colon/Rectum Cancer
Stratified by Age
<65
No endoscopy	1.00	1.00	1.00
Colonoscopy	0.33 (0.27–0.39)	0.47 (0.36–0.62)	0.25 (0.19–0.32)
≥65
No endoscopy	1.00	1.00	1.00
Colonoscopy	0.44 (0.40–0.49)	0.61 (0.53–0.70)	0.31 (0.26–0.36)
Stratified by Sex
Male
No endoscopy	1.00	1.00	1.00
Colonoscopy	0.36 (0.32–0.41)	0.54 (0.45–0.65)	0.27 (0.22–0.32)
Female
No endoscopy	1.00	1.00	1.00
Colonoscopy	0.46 (0.41–0.52)	0.61 (0.52–0.72)	0.32 (0.26–0.38)
Stratified by Stage
Early Stage (1)
No endoscopy	1.00	1.00	1.00
Colonoscopy	0.43 (0.39–0.49)	0.62 (0.52–0.73)	0.32 (0.27–0.37)
Late Stage (2–4)
No endoscopy	1.00	1.00	1.00
Colonoscopy	0.38 (0.33–0.43)	0.54 (0.45–0.65)	0.23 (0.18–0.29)

^*conditional logistic regression results