Registration in the danish hip arthroplasty registry: completeness of total hip arthroplasties and positive predictive value of registered diagnosis and postoperative complications

Acta Orthopaedica Scandinavica
Alma PedersenUlf Lucht

Abstract

There are few publications regarding the validity of data in hip arthroplasty registers. The Danish Hip Arthroplasty Registry (DHR) is a nationwide clinical database of THAs and revisions in Denmark. We assessed the completeness of registration of primary total hip arthroplasties (THAs) and revisions in the DHR from 1995-2000. In addition, the positive predictive value (PPV) of registered data for diagnoses in patients undergoing primary THA and postoperative complications was analyzed. Completeness was assessed using the Danish National Registry of Patients (NRP) as a reference, which is a nationwide and population-based registry of all somatic hospital admissions since 1977. The positive predictive value of registered data was assessed by review of medical records and preoperative radiographs from samples of randomly selected patients registered in the DHR using a standardized form. The overall completeness of registration for primary THAs and/or revisions was 94% (26,129 patients registered in both NRP and DHR and 27,757 patients registered in the NRP). There was a lower degree of completeness for revisions than for primary THAs (81% versus 94%). The completeness did not vary substantially according to gender and age. Comple...Continue Reading

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Citations

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