About the Authors

Nicolas Méthy

nicolas.methy@inserm.fr

Affiliation CESP-Inserm U1018, Le Kremlin-Bicêtre, France

Annie Velter

Affiliation Institut de veille sanitaire, Saint-Maurice, France

Caroline Semaille

Affiliation Agence nationale de sécurité du médicament et des produits de santé, Saint-Denis, France

Nathalie Bajos

Affiliations CESP-Inserm U1018, Le Kremlin-Bicêtre, France, Institut national d’études démographiques, Paris, France

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: NM. Wrote the paper: NM NB. Coordinated the Gay press surveys in 2004 and 2011: AV. Conceived and designed the study, were involved in the interpretation of the results: NM AV CS NB.