Cluster randomised controlled trial to evaluate what the effect is of evidence-based order sets aimed at five indications on the appropriateness of laboratory test ordering in primary care.
Cluster randomised controlled trial in Belgian primary care practices. Participants will be primary care physicians working in primary care practices affiliated to one of three collaborating laboratories in the Leuven, Ghent or Antwerp regions. Primary care practices will be allocated and randomized to either the intervention or control group. Physicians in PCPs randomized to the intervention will be offered order sets based on indication when using the CPOE for ordering laboratory tests. The effect of order sets will be analyzed for 17 common indications for ordering laboratory tests in Belgian primary care: diabetes mellitus, hypertension, cardiovascular disease, general check-up, unexplained fatigue, anemia, liver pathology, medication monitoring, gout, chronic kidney disease, lung embolism, acute coronary syndrome, diarrhea, thyroid disease, sexually transmitted disease, rheumatoid arthritis and obesity.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Enrollment
288
CPOE including series of recommended tests ordered per indication
CPOE only
Academic Centre for General Practice
Leuven, Belgium
Appropriateness
number of appropriate tests for 17 study indications
Time frame: 3 months
Missed or delayed diagnoses
Incidence of missed or delayed diagnoses after laboratory test
Time frame: 1 year
Laboratory test volume
Total volume of ordered laboratory tests
Time frame: 1 year
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