Related Experiment Video
Updated: Aug 16, 2026

Inverse Probability of Treatment Weighting (Propensity Score) using the Military Health System Data Repository and National Death Index
Published on: January 8, 2020
Statistics for hospital epidemiology. General design and analysis questions
1Department of Preventive Medicine, University of Iowa Hospitals and Clinics, Iowa City 52242.
Abstract:
In this first article of the series, we have listed a number of issues for the design and analysis of epidemiologic studies. In subsequent papers, we shall discuss methods appropriate for a variety of data from both retrospective and prospective studies. Methods of analysis will be described that will permit adequate control for stratification variables and adjustment for factors related to both disease and risk factor. When possible, we shall describe computer packages that will be helpful in carrying out the analysis. Our emphasis, however, will be on interpretation of the methods we describe.
Related Concept Videos
Introduction to Epidemiology
Study Designs in Epidemiology
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
Bias in Epidemiological Studies
Statistical Methods for Analyzing Epidemiological Data
Steps in Outbreak Investigation
Statistical Software for Data Analysis and Clinical Trials