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Trends and between-Physician Variation in Laboratory Testing: A Retrospective Longitudinal Study in General Practice
Laboratory tests are frequently ordered by general practitioners (GPs), but little is known about time trends and between-GP variation of their use. In this retrospective longitudinal study, we analyzed over six million consultations by Swiss GPs during the decade 2009–2018. For 15 commonly used tes...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7355885/ https://www.ncbi.nlm.nih.gov/pubmed/32521786 http://dx.doi.org/10.3390/jcm9061787 |
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author | Schumacher, Lisa D. Jäger, Levy Meier, Rahel Rachamin, Yael Senn, Oliver Rosemann, Thomas Markun, Stefan |
author_facet | Schumacher, Lisa D. Jäger, Levy Meier, Rahel Rachamin, Yael Senn, Oliver Rosemann, Thomas Markun, Stefan |
author_sort | Schumacher, Lisa D. |
collection | PubMed |
description | Laboratory tests are frequently ordered by general practitioners (GPs), but little is known about time trends and between-GP variation of their use. In this retrospective longitudinal study, we analyzed over six million consultations by Swiss GPs during the decade 2009–2018. For 15 commonly used test types, we defined specific laboratory testing rates (sLTR) as the percentage of consultations involving corresponding laboratory testing requests. Patient age- and sex-adjusted time trends of sLTR were modeled with mixed-effect logistic regression accounting for clustering of patients within GPs. We quantified between-GP variation by means of intraclass correlation coefficients (ICC). Nine out of the 15 laboratory test types considered showed significant temporal increases, most eminently vitamin D (ten-year odds ratio (OR) 1.88, 95% confidence interval (CI) 1.71–2.06) and glycated hemoglobin (ten-year OR 1.87, 95% CI 1.82–1.92). Test types both subject to substantial increase and high between-GP variation of sLTR were vitamin D (ICC 0.075), glycated hemoglobin (ICC 0.101), C-reactive protein (ICC 0.202), and vitamin B12 (ICC 0.166). Increasing testing frequencies and large between-GP variation of specific test type use pointed at inconsistencies of medical practice and potential overuse. |
format | Online Article Text |
id | pubmed-7355885 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-73558852020-07-22 Trends and between-Physician Variation in Laboratory Testing: A Retrospective Longitudinal Study in General Practice Schumacher, Lisa D. Jäger, Levy Meier, Rahel Rachamin, Yael Senn, Oliver Rosemann, Thomas Markun, Stefan J Clin Med Article Laboratory tests are frequently ordered by general practitioners (GPs), but little is known about time trends and between-GP variation of their use. In this retrospective longitudinal study, we analyzed over six million consultations by Swiss GPs during the decade 2009–2018. For 15 commonly used test types, we defined specific laboratory testing rates (sLTR) as the percentage of consultations involving corresponding laboratory testing requests. Patient age- and sex-adjusted time trends of sLTR were modeled with mixed-effect logistic regression accounting for clustering of patients within GPs. We quantified between-GP variation by means of intraclass correlation coefficients (ICC). Nine out of the 15 laboratory test types considered showed significant temporal increases, most eminently vitamin D (ten-year odds ratio (OR) 1.88, 95% confidence interval (CI) 1.71–2.06) and glycated hemoglobin (ten-year OR 1.87, 95% CI 1.82–1.92). Test types both subject to substantial increase and high between-GP variation of sLTR were vitamin D (ICC 0.075), glycated hemoglobin (ICC 0.101), C-reactive protein (ICC 0.202), and vitamin B12 (ICC 0.166). Increasing testing frequencies and large between-GP variation of specific test type use pointed at inconsistencies of medical practice and potential overuse. MDPI 2020-06-08 /pmc/articles/PMC7355885/ /pubmed/32521786 http://dx.doi.org/10.3390/jcm9061787 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Schumacher, Lisa D. Jäger, Levy Meier, Rahel Rachamin, Yael Senn, Oliver Rosemann, Thomas Markun, Stefan Trends and between-Physician Variation in Laboratory Testing: A Retrospective Longitudinal Study in General Practice |
title | Trends and between-Physician Variation in Laboratory Testing: A Retrospective Longitudinal Study in General Practice |
title_full | Trends and between-Physician Variation in Laboratory Testing: A Retrospective Longitudinal Study in General Practice |
title_fullStr | Trends and between-Physician Variation in Laboratory Testing: A Retrospective Longitudinal Study in General Practice |
title_full_unstemmed | Trends and between-Physician Variation in Laboratory Testing: A Retrospective Longitudinal Study in General Practice |
title_short | Trends and between-Physician Variation in Laboratory Testing: A Retrospective Longitudinal Study in General Practice |
title_sort | trends and between-physician variation in laboratory testing: a retrospective longitudinal study in general practice |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7355885/ https://www.ncbi.nlm.nih.gov/pubmed/32521786 http://dx.doi.org/10.3390/jcm9061787 |
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