TY - JOUR PY - 2010// TI - Using a hierarchical model to estimate risk-adjusted mortality for hospitals not included in the reference sample JO - Health services research A1 - Clark, David E. A1 - Hannan, Edward L. A1 - Raudenbush, Stephen W. SP - 577 EP - 587 VL - 45 IS - 2 N2 - 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.

CONCLUSIONS: To allow independent verification, agencies using reference databases for hospital mortality "report cards" 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.

Language: en

LA - en SN - 0017-9124 UR - http://dx.doi.org/10.1111/j.1475-6773.2009.01074.x ID - ref1 ER -