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Statistics

Author: Elixhauser A, Steiner CA.
Title: Most common diagnoses and procedures in U.S. community hospitals.
Publication: Rockville (MD): AHCPR.
Date: 1999
Abstract: This publication provides information on the most frequent diagnoses and procedures for hospital inpatients. It helps to answer questions such as "What are the most common reasons for hospitalization in the United States?" "Which procedures are most frequently performed?" "For what conditions is this procedure used?" and "How is this condition treated?" The analysis is based on data for U.S. hospital inpatient stays in 1996 using the Healthcare Cost and Utilization Project Nationwide Inpatient Sample. For each of the 100 most frequently performed principal procedures, the authors list the 5 principal diagnoses most commonly recorded on the discharge abstract. Similarly, for each of the 100 most frequent principal diagnoses treated in hospitals, the authors list the 5 principal procedures most commonly performed. For each diagnosis-procedure combination, information on in-hospital mortality and mean and median length of stay and total charges is provided. This publication can be used to evaluate the variety of diagnoses associated with a given procedure and the variations in treatment for particular diagnoses. In addition, it provides information on variations in length of stay, total charges, and in-hospital mortality among diagnosis-procedure combinations.
Availability: AHCPR Publication No. 99-0046 is available from the AHRQ Publications Clearinghouse.

Authors: Elixhauser A., Johantgen M, Andrews R.
Title: Descriptive statistics by insurance status for most frequent hospital diagnoses and procedures.
Publication: Rockville (MD): AHCPR.
Date: 1997
Abstract: This Research Note presents data on the top 50 diagnoses and top 50 procedures in U.S. hospitals. It illustrates differences by insurance status for a range of conditions identified in a nationwide sample of inpatients.
Availability: AHCPR Publication No. 97-0009 is available from the AHRQ Publications Clearinghouse.

Author: Harris DR, Andrews R, Elixhauser A.
Title: Race/ethnicity and treatment of children and adolescents, by diagnosis.
Publication: Rockville (MD): AHCPR.
Date: 1996
Abstract: A number of recent studies have identified racial differences in treatment for selected diagnoses among adults. However, relatively few studies have examined treatment differences among children of different racial and ethnic groups. This Research Note examines treatment differences among children and adolescents by race/ethnicity across a comprehensive list of diagnoses in order to foster more research in this important area. Descriptive statistics are provided for 75 conditions treated on an inpatient basis; information is presented overall and separately by race/ethnicity (white, black, Hispanic, and other). This study used discharge abstract data on nearly 700,000 discharges of children and adolescents from the 1986 Hospital Cost and Utilization Project, a sample of about 10 percent of short-term, general, non-Federal hospitals in the United States. For each condition, statistics are provided on age, type of procedure, presence of complications, discharge status, disease stage, expected primary payer, length of stay and charges. Detailed tables allow comparison of racial/ethnic groups on all these variables. Otitis media is used as a case study to illustrate how these descriptive statistics can be used to design future research projects.
Availability: AHCPR Publication No. 96-0012 is available from the AHRQ Publications Clearinghouse.

Authors: Andrews R, Harris DR, Elixhauser A.
Title: Gender, Race/Ethnicity, and Treatment of Adults in Hospital Diagnosis
Publication: Rockville (MD): AHCPR.
Date: 1995
Abstract: Recent studies have identified differences in treatment for a few selected diagnoses based on race and gender. The extent to which such differences exist for all diagnoses and treatments is unknown. In addition, there has been almost no research on ethnic (Hispanic/non-Hispanic) differences in treatment. This Research Note examines treatment differences by gender and race/ethnicity across a comprehensive list of diagnoses in order to foster more research in this important area.

This Research note provides information on 100 conditions treated on an inpatient basis; descriptive statistics are presented overall and separately by gender and race/ethnicity (white, black, Hispanic, and other). This study used discharge abstract data on more than 3 million discharges from the 1986 Hospital Cost and Utilization Project, a sample of about 500 short-term, general, non-Federal hospitals in the United States. For each condition, statistics are provided on age, type of procedure, presence of complications, discharge status, disease stage, expected primary payer, length of stay, and charges. Detailed tables allow comparison of racial/ethnic groups overall and by gender on all these variables. Alcohol, drug abuse, and mental health diagnoses are used as a case study to provide an example of how these descriptive statistics can be used to design future research projects.
Availability: AHCPR Publication No. 96-0011 is available from the AHRQ Publications Clearinghouse.

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