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Quality of Care

  1. Sharon-Lise T. Normand

Published Online: 15 JUL 2005

DOI: 10.1002/0470011815.b2a4a035

Encyclopedia of Biostatistics

Encyclopedia of Biostatistics

How to Cite

Normand, S.-L. T. 2005. Quality of Care. Encyclopedia of Biostatistics. 4.

Author Information

  1. Harvard School of Public Health, Boston, MA, USA

Publication History

  1. Published Online: 15 JUL 2005


Quality of care refers to the attributes or characteristics of the delivery and subsequent outcomes of mental and physical health care. Data are collected to assess quality in order to improve care, to provide accountability, and to quantify information for market choices. Analyses of health data, however, are challenging due to their nonexperimental nature and complex structure. These characteristics lead to potential problems with confounding when identifying factors that impact quality, with nonindependence of outcomes associated with individuals treated within health care units, as well as with clustering due to multiple mixed outcomes.


  • structural measures;
  • outcomes-based measures;
  • process-based measures;
  • regression-adjustment;
  • observational study;
  • hierarchical model;
  • latent variables