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| Clinical group | Mean age (SD) | Number of samples | ||
|---|---|---|---|---|
| Total | Male (%) | Female (%) | ||
| gFOBT blood-negative | 67.0 (4.5) | 491 (22%) | 205 (42%) | 286 (58%) |
| gFOBT blood-positive, with the following diagnosis at colonoscopy: | ||||
| CRC | 68.1 (5.0) | 430 (19%) | 289 (67%) | 141 (33%) |
| Adenoma | 66.3 (4.7) | 665 (30%) | 432 (65%) | 233 (35%) |
| Normal colonoscopy | 66.6 (4.3) | 300 (13%) | 155 (52%) | 145 (48%) |
| Non-neoplastic diagnosis | 66.7 (4.7) | 366 (16%) | 188 (51%) | 178 (49%) |
