Table 1.

Characteristics of the study population.

Characteristic		All (N=7,620)	Women (N=4,093)	Men (N=3,527)
Age – yr
Mean ± SD		56.7±7.3	56.5±7.3	57.0±7.5
Age group – N (%)
<50		294 (3.9)	162 (4.0)	132 (3.7)
50–54		3,123 (41.0)	1,720 (42.0)	1,403 (39.8)
55–59		2,024 (26.5)	1,103 (26.9)	921 (26.1)
60–64		1,266 (16.6)	660 (16.2)	606 (17.2)
≥65		913 (12.0)	448 (10.9)	465 (13.2)
Positive family history
N (%)		200 (2.6%)	119 (2.9)	81 (2.3)
BMI
Mean ± SD		28.1±7.1	27.8±8.5	28.4±5.1
≥25, N (%)		5,125 (67.3)	2,411 (58.9)	2,714 (76.9)
Positive CTC, N (%)		1,087 (14.3)	480 (11.7)	607 (17.2)
Patients to polypectomy, N (%)		735 (9.6)	341 (8.3)	394 (11.2)