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 - Northwestern Memorial Hospital - Chicago

Vascular surgery mortality

Surgery is considered any procedure to remove, repair or replace a part of the body. Vascular surgery is any surgery involving the arteries and veins.

Hospitals seek to prevent patient deaths wherever possible. Not all deaths can be avoided, and some patients have higher risks than others or choose to discontinue treatment. However, some deaths are preventable.  A lower than expected mortality rate (a value of less than 1) may indicate that a hospital provides a higher level of patient care.

About this measure

Mortality rate is the statistical measure of the number of people who die. Vascular surgery mortality rate for this measure is expressed as the observed (actual) mortality in the hospital (deaths per 100 patients), compared to the “expected” mortality rate for similar patients at academic medical centers in the United States who participate in the University Healthsystem Consortium’s Clinical Data Base.  A value of 1.0 means that the mortality rate was exactly as expected.  A rate higher than 1.0 means the rate was higher than expected, and a rate below 1.0 means the rate was lower than expected.  

Note: In this case, a lower number is better.

Most Recent Available Data (Observed to Expected Ratio)
  2013 Q3
Northwestern Memorial 0.84
National Average 1
Academic Medical Centers Comparison 0.92
Performance Trend (Observed to Expected Ratio)
  2011 Q4 2012 Q1 2012 Q2 2012 Q3 2012 Q4 2013 Q1 2013 Q2 2013 Q3
Northwestern Memorial 0.8 0 0 0.91 0.91 1.1 1.24 0.84
National Average 1 1 1 1 1 1 1 1
Academic Medical Centers Comparison 0.86 0.82 0.91 1 1.01 0.86 0.85 0.92
Source:University Healthsystem Consortium www.uhc.edu
Vascular Surgery Mortality
Last UpdateFebruary 24, 2014

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