Controlling for confounding by indication for treatment. Are administrative data equivalent to clinical data?

A new method of classifying prognostic comorbidity in longitudinal studies: Development and validation

1987 • 44,619 citations

The meaning and use of the area under a receiver operating characteristic (ROC) curve.

1982 • 20,275 citations

Judging disease activity in clinical practice in rheumatoid arthritis: first step in the development of a disease activity score.

1990 • 1,051 citations

Dealing With Medical Practice Variations: A Proposal for Action

1984 • 718 citations

Discordance of Databases Designed for Claims Payment versus Clinical Information Systems: Implications for Outcomes Research

1993 • 621 citations

Patterns of Care Related to Age of Breast Cancer Patients

1987 • 547 citations

Gram-Negative Bacteremia

1962 • 393 citations

Social and Economic Factors in the Choice of Lung Cancer Treatment

1988 • 275 citations

Recent Developments and Future Issues in the Use of Health Status Assessment Measures in Clinical Settings

1992 • 255 citations

Variations in Rates of Hospitalization of Children in Three Urban Communities

1989 • 254 citations

Decisions about Resuscitation: Inequities among Patients with Different Diseases but Similar Prognoses

1989 • 250 citations

An Assessment of Prostatectomy for Benign Urinary Tract Obstruction

1988 • 193 citations

How Accurate are Hospital Discharge Data for Evaluating Effectiveness of Care?

1993 • 188 citations

Surgical Rate Variations: Do They Reflect the Health or Socioeconomic Characteristics of the Population?

1982 • 117 citations

The Differential Processing of Product Category and Noncomparable Choice Alternatives

1989 • 115 citations

Using Administrative Data to Predict Important Health Outcomes: Entry to Hospital, Nursing Home, and Death

1988 • 99 citations

Comparing clinical information with claims data: Some similarities and differences

1991 • 95 citations

Problems with using observational databases to compare treatments

1991 • 93 citations

Postsurgical Mortality in Manitoba and New England

1990 • 85 citations

Interpreting Hospital Mortality Data

1988 • 77 citations

A test of consumer contribution to small area variations in health care delivery.

1977 • 56 citations

Statistical Considerations for a Medical Data Base

1980 • 45 citations

Is coronary-care-unit admission restricted for elderly patients? A multicenter study.

1991 • 39 citations

Current Uses of Large Data Sets to Assess the Quality of Providers: Construction of Risk-Adjusted Indexes of Hospital Performance

1990 • 29 citations

Para-analysis, Faute de mieux, and the perils of riding on a data barge

1989 • 29 citations

Mortality in a public and a private hospital compared: the severity of antecedent disorders in Medicare patients.

1993 • 24 citations

The Impact of a Rapid Screen for Streptococcal Pharyngitis on Clinical Decision Making in the Emergency Department

1991 • 10 citations