Funding: An unrestricted financial

study. The sponsor’s representative (IL) participated in the study design and data collection. However, database handling and statistical analysis were carried out independently from the sponsor. MD is the guarantor of the paper and takes responsibility for the accuracy of the data and analyses. Competing Interests: The first author’s department has received grants from MSD in order to conduct studies in the field of rheumatology, and this author has also acted as a member of an advisory board for MSD. IL is an associate medical director of Merck France