Surgery
Volume 145, Issue 6 , Pages 602-610 , June 2009

Investigations using clinical data registries: Observational studies and risk adjustment

  • Bruce L. Hall, MD, PhD, MBA FACS

      Affiliations

    • Department of Surgery, John Cochran Veterans Affairs Medical Center and the Department of Surgery, School of Medicine, Olin Business School, and Center for Health Policy, Washington University in St. Louis, St. Louis, MO
    • ,
  • Karl Y. Bilimoria, MD, MS

      Affiliations

    • Department of Surgery, Northwestern University, Chicago, IL
    • ,
  • Clifford Y. Ko, MD, MS, MSHS, FACS

      Affiliations

    • Department of Surgery, Division of Research and Optimal Patient Care, David Geffen School of Medicine at UCLA, Los Angeles, CA
    • Corresponding Author InformationReprint requests: Clifford Y. Ko, MD, MS, MSHS, FACS, Department of Surgery, Division of Research and Optimal Patient Care, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095.

,Accepted 3 March 2009.

References 

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  13. Stukel TA, Fisher ES, Wennberg DE, Alter DA, Gottlieb DJ, Vermeulen MJ. Analysis of observational studies in the presence of treatment selection bias: effects of invasive cardiac management on AMI survival using propensity score and instrumental variable methods. JAMA. 2007;297:278–285
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  15. Newhouse JP, McClellan M. Econometrics in outcomes research: the use of instrumental variables. Annu Rev Public Health. 1998;19:17–34
  16. In:  Saltelli A,  Chan K,  Scott E editor. Sensitivity analysis. Wiley series in probability and statistics. New York: John Wiley and Sons; 2000;
  17. Charlson ME, Pompei P, Ales KL, MacKenzie CR. A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. J Chronic Dis. 1987;40:373–383
  18. Elixhauser A, Steiner C, Harris DR, Coffey RM. Comorbidity measures for use with administrative data. Med Care. 1998;36:8–27
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  20. Iezzoni L. Finally present on admission but needs attention. Med Care. 2007;45:280–282

PII: S0039-6060(09)00106-8

doi: 10.1016/j.surg.2009.03.002

Surgery
Volume 145, Issue 6 , Pages 602-610 , June 2009

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