Journal article
Methodologic issues in observational studies
Clinical orthopaedics and related research, Vol.413(413), pp.33-42
08/2003
DOI: 10.1097/01.blo.0000079325.41006.95
PMID: 12897594
Abstract
Assessment of orthopaedic treatments depends primarily on studies that analyze data abstracted from medical records or collected prospectively for research purposes. Because treatment in these studies is determined by the surgeon and the patient rather than controlled by the researcher, these studies are referred to as observational. Most orthopaedics research uses the observational study design because it is less expensive and more timely, includes more representative patients, and leaves medical decision-making under the control of the physician and the patient. Biases associated with observational studies are influenced greatly by study design, methods of data collection, and statistical analysis. All observational studies should report factors influencing relevance (characteristics of patients, treatments, and outcome measures), and factors that influence validity (methods to obtain information and patient risk factors that may differ between treatments). Improved standards for reporting observational studies will facilitate the interpretation of results and the comparison of studies with conflicting results.
Details
- Title: Subtitle
- Methodologic issues in observational studies
- Creators
- Arthur Hartz - Department of Family Medicine, University of Iowa College of Medicine, 01292-D PFP, Iowa City, IA 52242-1097, USA. arthur-hartz@uiowa.eduJ L Marsh
- Resource Type
- Journal article
- Publication Details
- Clinical orthopaedics and related research, Vol.413(413), pp.33-42
- Publisher
- United States
- DOI
- 10.1097/01.blo.0000079325.41006.95
- PMID
- 12897594
- ISSN
- 0009-921X
- eISSN
- 1528-1132
- Grant note
- 1R01 HS 10739-01 / AHRQ HHS
- Language
- English
- Date published
- 08/2003
- Academic Unit
- Orthopedics and Rehabilitation; Family and Community Medicine
- Record Identifier
- 9984040210202771
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