Table 1.
Available data in GENESIS per type of participant
| Type of participant | Signed consent form | Completed questionnaire | Blood sample | At least one mammogram performeda | At least one mammogram collected |
|---|---|---|---|---|---|
| N | N (%) | N (%) | N | N (%) | |
| Index case | 1721 | 1682 (98 %) | 1695 (98 %) | 1721 | 1169 (68 %) |
| Affected sister | 826 | 807 (98 %) | 805 (97 %) | 826 | 546 (66 %) |
| Unaffected sister | 599 | 592 (99 %) | 582 (97 %) | 589 | 493 (84 %) |
| Control | 1419 | 1411 (99 %) | 1360 (96 %) | 1322 | 1201 (91 %) |
| Total | 4565 | 4492 (98 %) | 4442 (97 %) | 4458 | 3409 (76 %) |
N, number; %, percentage, abased on questionnaire information for unaffected women