@article{ref1,
title="Using a hierarchical model to estimate risk-adjusted mortality for hospitals not included in the reference sample",
journal="Health services research",
year="2010",
author="Clark, David E. and Hannan, Edward L. and Raudenbush, Stephen W.",
volume="45",
number="2",
pages="577-587",
abstract="OBJECTIVE: To provide a method for any hospital to evaluate patient mortality using a hierarchical risk-adjustment equation derived from a reference sample. DATA SOURCE: American College of Surgeons National Trauma Data Bank (NTDB). STUDY DESIGN: Hierarchical logistic regression models predicting mortality were estimated from NTDB data. Risk-adjusted hospital effects obtained directly from models using standard software were compared with approximations derived from a summary equation and data from each individual hospital. PRINCIPAL FINDINGS: Theoretical approximations were similar to results using standard software. <br><br>CONCLUSIONS: To allow independent verification, agencies using reference databases for hospital mortality &quot;report cards&quot; should publish their risk-adjustment equations. Similar hospitals not in the reference database may also use the published equations along with the approximations described to evaluate their own outcomes using their own data.<p /><p>Language: en</p>",
language="en",
issn="0017-9124",
doi="10.1111/j.1475-6773.2009.01074.x",
url="http://dx.doi.org/10.1111/j.1475-6773.2009.01074.x"
}