Comparative cardiovascular effects of thiazolidinediones: systematic review and meta-analysis of observational studies

Abstract
Footnotes Contributors: YKL, CSK, and SS developed the concept and protocol for the review. CSK and YKL abstracted and analysed data. YKL, CSK, and SS wrote the manuscript. YKL had full access to all of the data in the study, takes responsibility for the integrity of the data and the accuracy of the data analysis, and is the guarantor. Funding: SS is supported by grant number 1KL2RR025006-03 from the NCRR, a component of the National Institutes of Health (NIH), and NIH Roadmap for Medical Research. The design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, and approval of the manuscript was independent of any sources of funding. Its contents are solely the responsibility of the authors and do not necessarily represent the official view of NCRR or NIH. Competing interests: All authors have completed the Unified Competing Interest form at http://www.icmje.org/coi_disclosure.pdf (available on request from the corresponding author) and declare that (1) they have no relationships with any company that might have an interest in the submitted work in the previous three years; (2) their spouses, partners, or children have no financial relationships that may be relevant to the submitted work; and (4) they have no non-financial interests that may be relevant to the submitted work. Data sharing: No additional data available.