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Primary exclusion N = 12. Subjects received invitation letter N = 4484. Secondary exclusion N = 32. Potentially eligible sample N = 4452. Sampled subjects N = 4496. Invalid address N = 213 (4.8%). Negative answer N = 502. No answer N = 2192. Positive answer N = 1545.
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Primary exclusionN =12 Subjects received invitation letter N = 4484 Secondary exclusion N = 32 Potentially eligible sample N = 4452 Sampled subjects N = 4496 Invalid address N = 213 (4.8%) Negative answer N = 502 No answer N = 2192 Positive answer N = 1545 Withdrawal case N = 80 Couldn’t participate N = 31 Recruited subjects N = 1434 Tertiary exclusion N = 2 Participants N = 1432 (32.2%) Non participants N = 3018 (67.8%)