How well can hospital discharge abstracts be used to estimate patient health status? This
paper compares information on comorbidity obtained from hospital discharge abstracts for …

Claims-based indices of comorbidity and severity, as well as other measures derived from
routinely collected administrative data, are developed and tested. The extent to which risk …

Objective. To compare the precision of risk adjustment in the measurement of mortality rates
using:(i) data in hospitals' electronic discharge abstracts, including data elements that …

Background. The comorbidity variables that constitute the Charlson index are widely used in
health care research using administrative data. However, little is known about the validity of …

Administrative claims data have been used to measure risk-adjusted clinical outcomes of
hospitalized patients. These data have been criticized because they cannot differentiate risk …

We compared the coding of comorbid conditions in an administrative database to that found
in medical records for 485 men who had undergone a prostatectomy. Only a few specific …

Objective: To evaluate whether administrative claims data (ADM) from hospital discharges
can be transformed by present-on-admission (POA) codes and readily available clinical data …

Health services researchers rely heavily on administrative data bases, but incomplete or
incorrect coding may bias risk models based on administrative data. The best method for …

Demand for quality of care data has led to publication of adjusted mortality rates of hospitals
and physicians. Yet the accuracy of databases used for this purpose is questionable, raising …

Recently, there has been a great deal of discussion regarding the use of administrative
databases to study outcomes of medical care. A major issue in this discussion is how to …