The Positive Predictive Value of Hip Fracture Diagnoses and Surgical Procedure Codes in the Danish Multidisciplinary Hip Fracture Registry and the Danish National Patient Registry
| Autor: | Hjelholt, Thomas J, Edwards, Nina M, Vesterager, Jeppe D, Kristensen, Pia K, Pedersen, Alma B |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
validity
medicine.medical_specialty Epidemiology medicine.medical_treatment 030204 cardiovascular system & hematology law.invention Intramedullary rod 03 medical and health sciences 0302 clinical medicine law medicine Internal fixation Femur Clinical Epidemiology 030212 general & internal medicine Original Research Hip fracture business.industry Medical record Gold standard medicine.disease Confidence interval Surgery hip fractures business |
| Zdroj: | Hjelholt, T J, Edwards, N M, Vesterager, J D, Kristensen, P K & Pedersen, A B 2020, ' The Positive Predictive Value of Hip Fracture Diagnoses and Surgical Procedure Codes in the Danish Multidisciplinary Hip Fracture Registry and the Danish National Patient Registry ', Clinical Epidemiology, vol. 12, pp. 123-131 . https://doi.org/10.2147/CLEP.S238722 Clinical Epidemiology |
| ISSN: | 1179-1349 |
| DOI: | 10.2147/CLEP.S238722 |
| Popis: | Thomas J Hjelholt,1 Nina M Edwards,1 Jeppe D Vesterager,1 Pia K Kristensen,1,2 Alma B Pedersen1 1Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus N, Denmark; 2Department of Orthopedic Surgery, Horsens Regional Hospital, Horsens 8700, DenmarkCorrespondence: Thomas J HjelholtDepartment of Clinical Epidemiology, Aarhus University Hospital, Olof Palmes Alle 43-45, Aarhus N 8200, DenmarkTel +45 871 68219Email tjh@clin.au.dkAim: The health-care databases may be a valuable source for epidemiological research in hip fracture surgery, if the diagnoses are valid. We examined the validity of hip fracture diagnoses and surgical procedure codes in the Danish Multidisciplinary Hip Fracture Registry (DMHFR) and the Danish National Patient Registry (DNPR) by calculating the positive predictive value (PPV).Methods: We identified a random sample of 750 hip fracture patients registered in the DMHFR between 2014 and 2017. Diagnoses have been coded by the 10th revision of the International Classification of Diseases, while procedures have been coded by the Nordic Medico-Statistical Committee classification in the DNPR and directly transferred to the DMHFR. Using the surgical procedure description from the medical record as gold standard, we estimated the PPV of the hip fracture diagnoses and surgical procedure codes in the DMHFR and the DNPR with 95% confidence interval (CIs).Results: The PPV was 90% (95% CI: 86%-93%) for fracture of the neck of femur, 92% (95% CI: 87%-95%) for trochanteric fracture, and 83% (95% CI: 78%-88%) for subtrochanteric fracture. Joining trochanteric and subtrochanteric fracture resulted in a PPV of 97% (95% CI: 95%-98%). Procedure codes had a PPV of 100% for primary prosthetic replacement and internal fixation with intramedullary nail, 96% (95% CI: 85%-99%) for internal fixation using screws alone, 91% (95% CI: 84%-96%) for internal fixation using plates and screws, and 89% (95% CI: 83%-94%) for internal fixation with other or combined methods. Stratifying by age group, gender, hospital type and calendar year of surgery showed similar results as the overall PPV estimates.Conclusion: Our findings indicate a high quality of the hip fracture diagnoses and corresponding procedure codes in the DMHFR and the DNPR, with a majority of PPVs above 90%. Thus, the DMHFR and the DNPR are a valuable data source on hip fracture for epidemiological research.Keywords: epidemiology, hip fractures, validity |
| Databáze: | OpenAIRE |
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