Table III.

Comparison between 30-49 and 50 years old participants.

	Comparison between 30-49 years and ≥50 years old participants
Characteristics	30-49 years	≥50 years	OR (95% CI)	P-value
Number of participants	47	333
Age, mean (SD, 95% CI)	42.5 (5.9, 40.8-44.1)	65.9 (8.3, 65-66.7)		0.0001
Sex
Male (%)	42.6	54.7	0.61 (0.33-1.13)	0.12
Prevalence of lesions (%)
Polyps	16(34)	181 (54.4)	0.43 (0.22-0.82)	0.009
Polyps/person (SD, 95% CI)	2.38 (1.7,1.9-2.8)	2.1 (2.2,1.91-2.38)		0.8
Adenomas	5 (10.6)	107 (32.1)	0.25 (0.09-0.65)	0.002
Advanced adenomas	4 (8.5)	41 (12.3)	0.66 (0.2-1.9)	0.63
HGD	3 (6.4)	17 (5.1)	1.26 (0.35-4.5)	0.72
Cancer	1 (2.1)	7 (2.1)	1.01 (0.12-8.4)	0.9
Hyperplastic polyps	14(30)	93 (27.9)	1.09 (0.5-2.1)	0.7
Serrated polyps	0	24 (7.2)	n/a	0.09a
Proximal colon	7(15)	84 (25.2)	0.51 (0.22-1.2)	0.12

SD, standard deviation.

^aFisher exact test.