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Methods of a Danish multipractice study 1977-78.
Scandinavian Journal of Primary Health Care
|January 1, 1983
Summary
This multipractice study assessed asthma and allergic rhinitis recording methods in Danish general practices. Self-estimated recording rates, particularly above 90%, proved useful indicators of data quality for disease prevalence research.
Area of Science:
- General Practice Research
- Epidemiology
- Health Services Research
Background:
- A 1977-78 multipractice study investigated asthma and allergic rhinitis.
- 153 general practices (271 physicians) and 450,271 individuals participated.
- Practice demographics (physician age, patient age, region) differed slightly from national averages.
Purpose of the Study:
- To describe the methods employed in a large-scale general practice study.
- To evaluate the quality of data recording for respiratory conditions.
- To identify factors influencing interpractice variability in data collection.
Main Methods:
- Assessed recording methods in 153 Danish general practices.
- Calculated practice population size from health insurance data.
- Evaluated recording quality by comparing self-estimated recording activity with actual consultation numbers.
Main Results:
- Self-estimated recording rates served as a reliable indicator of recording quality.
- Approximately two-thirds of practices estimated over 90% recording accuracy.
- Interpractice variability in recording was observed, with some characteristics showing interaction, but major sources remained unexplained.
Conclusions:
- Despite methodological challenges like interpractice variability, Denmark offers favorable conditions for general practice research.
- High population registration with practices and access to registers facilitate data collection.
- Self-reported recording activity is a valuable tool for assessing data quality in multipractice studies.