Acknowledgements
The authors thank the investigators and participants of the DLCST and ECLIPSE for their valuable contributions, and the study sites staff for performing all the assessments.
DLCST was funded in full by the Danish Ministry of Interior and Health. The Danish Ministry of Interior and Health had no influence on the study design, the collection, analysis and interpretation of data, on the writing of the report or in the decision to submit the paper. ECLIPSE was funded by GlaxoSmithKline, and the study was designed by a Steering Committee which consisted of members from both the academic field and the sponsor. Data from ECLIPSE was provided by the sponsor, but analyzed and interpreted by the authors of this report.