Prevalence of colorectal neoplasms in young, average risk individuals: A turning tide between East and West

Table 4 Odds ratio for colorectal neoplasia detection among individuals aged 50-59 years compared to those aged 40-49 according to country of origin

Finding	OR (95%CI)	P value1
Studies of Western origin
Overall adenomas	1.7 (1.53-1.88)	< 0.0001
Advanced adenoma	2.34 (1.95-2.81)	< 0.0001
Cancer	2.33 (1.45-3.75)	< 0.0001
Studies of Asian origin
Overall adenomas	1.99 (1.89-2.09)	< 0.0001
Advanced adenoma	2.36 (2.05-2.72)	< 0.0001
Cancer	3.88 (2.41-6.23)	< 0.0001
Total
Overall adenomas	1.25 (1.20-1.30)	< 0.0001
Advanced adenoma	2.65 (2.38-2.94)	< 0.0001
Cancer	3.39 (2.45-4.68)	< 0.0001

¹χ² statistical comparison of distribution of selected findings.