- © 2007 Canadian Medical Association or its licensors
Nadia Khan and Finlay McAlister1 defined the primary outcome for their meta-analysis as the composite cardiovascular outcome of death, nonfatal myocardial infaraction or nonfatal stroke. Unfortunately, this definition is unclear; as a result, for some studies only cardiovascular deaths and for other studies all-cause deaths were included in the analyses. We checked the values presented for all trials in Figs. 2A and 2B against the original publications and found several discrepancies (see Appendix 1 available at www.cmaj.ca/cgi/content/full/176/7/971-a/DC1). We recommend recalculating the results and rethinking the interpretation.
REFERENCE
- 1.↵