Patient characteristics (n=200)
| Age (mean, range, in years) | 50.4 (35–69) |
| Male sex, n (%) | 88 (44) |
| Mutation type, n (%) | |
| MLH1 | 50 (25) |
| MSH2 | 68 (34) |
| Epcam | 3 (1.5) |
| MSH6 | 76 (38) |
| PMS2 | 3 (1.5) |
| Positive family history for SBC, n (%) | 9 (5) |
| Personal history of neoplasia, n (%) | 50 (25) |
SBC, small-bowel cancer.