Author Contributions: Dr Hemingway had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Hemingway, McCallum, Manderbacka, Martikainen, Keskimäki.
Acquisition of data: Hemingway, Manderbacka, Martikainen, Keskimäki.
Analysis and interpretation of data: Hemingway, McCallum, Shipley, Manderbacka, Martikainen, Keskimäki.
Drafting of the manuscript: Hemingway, McCallum, Shipley, Manderbacka.
Critical revision of the manuscript for important intellectual content: Hemingway, Shipley, Manderbacka, Martikainen, Keskimäki.
Statistical analysis: Shipley, Martikainen.
Obtained funding: Hemingway, Manderbacka, Martikainen, Keskimäki.
Administrative, technical, or material support: McCallum, Keskimäki.
Study supervision: Hemingway, Martikainen, Keskimäki.
Financial Disclosures: None reported.
Funding/Support: Dr Hemingway is funded by a UK Department of Health Public Health Career Scientist award. Drs McCallum, Manderbacka, and Martikainen were financially supported by the Academy of Finland, who also supported the data collection. Mr Shipley is supported by the British Heart Foundation.
Role of the Sponsors: The funders had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, and approval of the manuscript.