Roger A Horn

Biographic Data

ID5537224
NAMERoger A Horn
GIVEN NAMESRoger A
FAMILY NAMEHorn
SIGNATUREHORN R A
AFFILIATIONSJohns Hopkins University
ORCID0000-0003-1307-2938
VERIFIEDNo
TOTAL WORKS5
TOTAL CITATIONS0
WORKS AS AUTHOR5
WORKS AS EDITOR0
FIRST PUBLICATION YEAR1986
LATEST PUBLICATION YEAR1991
H-INDEX0

  • The Relationship Between Severity of Illness and Hospital Length of Stay and Mortality

    Susan D Horn, Phoebe D Sharkey et al.ARTICLEMedical Care1991

    To address the question of quantification of severity of illness on a wide scale, the Computerized Severity Index (CSI) was developed by a research team at the Johns Hopkins University. This article describes an initial assessment of some aspects of the validity and reliability of the CSI on a sample of 2,378 patients within 27 high-volume DRGs from five teaching hospitals. The 27 DRGs predicted 27% of the variation in LOS, while DRGs adjusted fo…

  • Psychiatric Severity of Illness

    Susan D Horn, Angela F Chambers et al.ARTICLEMedical Care1989

    This study was undertaken to determine if a measure of severity of illness for psychiatric patients, the Psychiatric Severity of Illness Index, could produce psychiatric case mix groups that are more homogeneous with respect to resource use than the diagnosis-related groups (DRGs). Psychiatric Severity of Illness data were collected on 1,672 cases in ten hospitals of various types. Of these cases, 1,418 had enough information in the medical recor…

  • Profiles of physician practice and patient severity of illness

    Susan D Horn, Roger A Horn et al.ARTICLEAmerican Journal of Public Health1986References: 2

    We report on a study that examined physician practice profiles using two methods of patient classification: the Severity of Illness Index and diagnosis-related groups (DRGs). When used together with conventional management information and DRGs, the Severity of Illness Index permitted useful comparisons to be made among physicians; differences in both case-mix and severity could be estimated. In 37 per cent of the physicians studied, we found diff…

  • Reliability and Validity of the Severity of Illness Index

    Susan D Horn, Roger A HornARTICLEMedical Care1986

    The authors discuss the objectives and definition of the Severity of Illness Index, which has been developed and refined at The Johns Hopkins University over the past 5 years. In addition, the training program for raters, the method used to ascertain reliability, and data from reliability testing in 18 hospitals are described. After at least 2 months' experience with severity scoring, the average agreement between hospital raters and the staff re…

  • Severity of Illness Within DRGs

    Susan D Horn, Roger A Horn et al.ARTICLEMedical Care1986

    The authors assess the ability of the Severity of Illness Index to explain variability of resource use within each DRG. The data came from 15 hospitals, all of which had a HCFA DRG case mix index greater than 1. The data set comprised approximately 106,000 discharges, for which discharge abstract data, financial data, and Severity of Illness data were available. To pool the data over the 15 hospitals, the authors converted all charges to costs an…