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Comment
. 2007 Apr 10;176(8):1125; author reply 1125.
doi: 10.1503/cmaj.1060187.

Bias in revascularization study

Carl van Walraven, Alan J Forster
Comment

Bias in revascularization study

Carl van Walraven et al. CMAJ. .
No abstract available

PubMed Disclaimer

Comment on

  • Revascularization in patients with heart failure.
    Tsuyuki RT, Shrive FM, Galbraith PD, Knudtson ML, Graham MM; APPROACH Investigators. Tsuyuki RT, et al. CMAJ. 2006 Aug 15;175(4):361-5. doi: 10.1503/cmaj.060108. CMAJ. 2006. PMID: 16908896 Free PMC article.

References

    1. Tsuyuki RT, Shrive FM, Galbraith PD, et al, for the APPROACH Investigators. Revascularization in patients with heart failure. CMAJ 2006;175(4):361-5. - PMC - PubMed
    1. van Walraven C, Davis D, Forster AJ, et al. Time-dependent bias due to improper analytical methodology is common in prominent medical journals. J Clin Epidemiol 2004;57:672-82. - PubMed
    1. Allison PD. Estimating Cox-regression models with PROC PHREG. Survival analysis using the SAS system. Cary (NC): SAS Institute Inc.; 2000. p. 111-84.