CMAJ • January 1, 2008; 178 (1). doi:10.1503/cmaj.070743.
© 2008 Canadian Medical Association or its licensors
All editorial matter in CMAJ represents the opinions of the authors and not necessarily those of the Canadian Medical Association.
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Hospital volume and patient outcomes in pulmonary embolism

Drahomir Aujesky, MD MSc, Maria K. Mor, PhD, Ming Geng, MS, Michael J. Fine, MD MSc, Bertrand Renaud, MD and Said A. Ibrahim, MD MPH

From the Division of Internal Medicine (Aujesky), University of Lausanne, Lausanne, Switzerland; the VA Center for Health Equity Research and Promotion (Mor, Geng, Fine, Ibrahim), Pittsburgh, Pa.; the Department of Biostatistics, Graduate School of Public Health (Mor, Geng) and the Division of General Internal Medicine, Department of Medicine (Fine, Ibrahim), University of Pittsburgh, Pittsburgh, Pa.; and the Department of Emergency Medicine (Renaud), University Hospital Henri Mondor, Paris, France


Figure 117
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  		Figure 1: Identification of sample for study of outcomes of pulmonary embolism in relation to hospital case volume. ICD-9-CM = International Classification of Diseases, 9th revision, Clinical Modification.

 

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  		Table 1.

 

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  		Table 2.

 

Figure 217
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  		Figure 2: Unadjusted and adjusted odds ratios for in-hospital mortality among 15 531 patients with pulmonary embolism, by hospital volume (annual number of cases of pulmonary embolism treated). (Adjustments were for hospital region within Pennsylvania, hospital teaching status, race, insurance status, severity of illness and administration of thrombolytic therapy.) OR = odds ratio, CI = confidence interval.

 

Figure 317
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  		Figure 3: Unadjusted and adjusted odds ratios for 30-day mortality among 15 531 patients with pulmonary embolism, by hospital volume (annual number of cases of pulmonary embolism treated). (Adjustments were for hospital region within Pennsylvania, hospital teaching status, race, insurance status, severity of illness and administration of thrombolytic therapy.) OR = odds ratio, CI = confidence interval.