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Referrals in the first validation phase with 50 participants
| Referral indication | Questionnaire (n) | Pedigree (n) | False-negative (n) | False-positive (n) | Sensitivity (%, 95 % CI) | Specificity (%, 95 % CI) |
|---|---|---|---|---|---|---|
| Lynch syndrome | 9 | 9 | 1 | 1 | 90 (55–98) | 98 (87–100) |
| Familial colorectal cancer | 1 | 1 | 0 | 0 | ||
| Single colonoscopy | 0 | 0 | 0 | 0 |
