Randomized Trial Evaluating the Effectiveness of the General Practitioner Involvement in Cancer Screening Invitations

Randomized Trial Evaluating the Effectiveness of a "Targeted Communication" With the General Practitioner Involvement in Cancer Screening Invitation Letters

Our goal is to evaluate, in France, the effectiveness (in terms of participation) of the general practitioner involvement (signature) and a more personalized communication in invitation letters to organized screening of breast, colorectal and cervical cancers.

The hypothesis on which this project is based is that communication is probably more effective if the "receiver" feels personally targeted by invitation letters (Dear Martin, I am writing ...) and if he knows "the issuer "(his general practitioner rather an unknown person).

Inclusion Criteria:

• Living in Indre-et-Loire (french territorial division 37)
• Be affiliated to the following three health insurance companies: CPAM (Caisse Primaire d'Assurance Maladie), MSA (Mutualité Sociale Agricole), or RSI (Régime social des Indépendants)
• Having declared (to health insurance company) an attending physician who has given its written consent to participate in the study
• Present no exclusion criterion to cancer screening ( for each one)
• Be old from 50 to 74 years (breast and colorectal cancer) or from 25 to 65 years (cervical cancer)

Exclusion Criteria: