Comparison of central laboratory HbA1c measurements obtained from a capillary collection versus a standard venous whole blood collection in the GRADE and EDIC studies

<h4>Background</h4> We compared HbA1c values obtained from capillary blood collection kits versus venous whole blood collections in study participants with type 1 or type 2 diabetes. <h4>Methods</h4> A total of 122 subjects, 64 with type 2 diabetes participating in the Glycem...

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Autores principales: David M. Nathan, Heidi Krause-Steinrauf, Barbara H. Braffett, Valerie L. Arends, Naji Younes, Paula McGee, Claire Lund, Mary Johnson, Gayle Lorenzi, Xiaoyu Gao, Michael W. Steffes, John M. Lachin, the GRADE Research Group, the DCCT/EDIC Research Group
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Publicado: Public Library of Science (PLoS) 2021
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spelling oai:doaj.org-article:a1509ef7c5804f69b3b15ceb3c2de3272021-11-25T06:10:58ZComparison of central laboratory HbA1c measurements obtained from a capillary collection versus a standard venous whole blood collection in the GRADE and EDIC studies1932-6203https://doaj.org/article/a1509ef7c5804f69b3b15ceb3c2de3272021-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8592405/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4> We compared HbA1c values obtained from capillary blood collection kits versus venous whole blood collections in study participants with type 1 or type 2 diabetes. <h4>Methods</h4> A total of 122 subjects, 64 with type 2 diabetes participating in the Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness (GRADE) Study and 58 with type 1 diabetes from the Epidemiology of Diabetes Interventions and Complications (EDIC) Study, participated in the validation study. Capillary tubes were filled by fingerstick by the participants on the same day as the collection of venous whole blood samples in EDTA-containing test tubes and were mailed to the central laboratory. HbA1c in all samples was measured with the same high-performance liquid chromatography. GRADE participants also completed a questionnaire on the ease of performing capillary collections. <h4>Results</h4> Participants from 22 clinical centers (GRADE n = 5, EDIC n = 17) were between 35 and 86 years of age, with 52% male and diverse race/ethnicities. Venous HbA1c results ranged between 5.4–11.9% (35.5–106.6 mmol/mol) with corresponding capillary results ranging between 4.2–11.9% (22.4–106.6 mmol/mol). The venous and capillary results were highly correlated (R2 = 0.993) and 96.7% differed by ≤0.2% (2.2 mmol/mol). Of participants surveyed, 69% indicated that the instructions and collection were easy to follow and 97% felt the collection method would be easy to do at home. <h4>Conclusions</h4> The capillary blood HbA1c results compared well with the conventional venous whole blood results. The capillary kits can be employed in other studies to reduce interruption of critical data collection and potentially to augment clinical care when in-person visits are not possible.David M. NathanHeidi Krause-SteinraufBarbara H. BraffettValerie L. ArendsNaji YounesPaula McGeeClaire LundMary JohnsonGayle LorenziXiaoyu GaoMichael W. SteffesJohn M. Lachinthe GRADE Research Groupthe DCCT/EDIC Research GroupPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
David M. Nathan
Heidi Krause-Steinrauf
Barbara H. Braffett
Valerie L. Arends
Naji Younes
Paula McGee
Claire Lund
Mary Johnson
Gayle Lorenzi
Xiaoyu Gao
Michael W. Steffes
John M. Lachin
the GRADE Research Group
the DCCT/EDIC Research Group
Comparison of central laboratory HbA1c measurements obtained from a capillary collection versus a standard venous whole blood collection in the GRADE and EDIC studies
description <h4>Background</h4> We compared HbA1c values obtained from capillary blood collection kits versus venous whole blood collections in study participants with type 1 or type 2 diabetes. <h4>Methods</h4> A total of 122 subjects, 64 with type 2 diabetes participating in the Glycemia Reduction Approaches in Diabetes: A Comparative Effectiveness (GRADE) Study and 58 with type 1 diabetes from the Epidemiology of Diabetes Interventions and Complications (EDIC) Study, participated in the validation study. Capillary tubes were filled by fingerstick by the participants on the same day as the collection of venous whole blood samples in EDTA-containing test tubes and were mailed to the central laboratory. HbA1c in all samples was measured with the same high-performance liquid chromatography. GRADE participants also completed a questionnaire on the ease of performing capillary collections. <h4>Results</h4> Participants from 22 clinical centers (GRADE n = 5, EDIC n = 17) were between 35 and 86 years of age, with 52% male and diverse race/ethnicities. Venous HbA1c results ranged between 5.4–11.9% (35.5–106.6 mmol/mol) with corresponding capillary results ranging between 4.2–11.9% (22.4–106.6 mmol/mol). The venous and capillary results were highly correlated (R2 = 0.993) and 96.7% differed by ≤0.2% (2.2 mmol/mol). Of participants surveyed, 69% indicated that the instructions and collection were easy to follow and 97% felt the collection method would be easy to do at home. <h4>Conclusions</h4> The capillary blood HbA1c results compared well with the conventional venous whole blood results. The capillary kits can be employed in other studies to reduce interruption of critical data collection and potentially to augment clinical care when in-person visits are not possible.
format article
author David M. Nathan
Heidi Krause-Steinrauf
Barbara H. Braffett
Valerie L. Arends
Naji Younes
Paula McGee
Claire Lund
Mary Johnson
Gayle Lorenzi
Xiaoyu Gao
Michael W. Steffes
John M. Lachin
the GRADE Research Group
the DCCT/EDIC Research Group
author_facet David M. Nathan
Heidi Krause-Steinrauf
Barbara H. Braffett
Valerie L. Arends
Naji Younes
Paula McGee
Claire Lund
Mary Johnson
Gayle Lorenzi
Xiaoyu Gao
Michael W. Steffes
John M. Lachin
the GRADE Research Group
the DCCT/EDIC Research Group
author_sort David M. Nathan
title Comparison of central laboratory HbA1c measurements obtained from a capillary collection versus a standard venous whole blood collection in the GRADE and EDIC studies
title_short Comparison of central laboratory HbA1c measurements obtained from a capillary collection versus a standard venous whole blood collection in the GRADE and EDIC studies
title_full Comparison of central laboratory HbA1c measurements obtained from a capillary collection versus a standard venous whole blood collection in the GRADE and EDIC studies
title_fullStr Comparison of central laboratory HbA1c measurements obtained from a capillary collection versus a standard venous whole blood collection in the GRADE and EDIC studies
title_full_unstemmed Comparison of central laboratory HbA1c measurements obtained from a capillary collection versus a standard venous whole blood collection in the GRADE and EDIC studies
title_sort comparison of central laboratory hba1c measurements obtained from a capillary collection versus a standard venous whole blood collection in the grade and edic studies
publisher Public Library of Science (PLoS)
publishDate 2021
url https://doaj.org/article/a1509ef7c5804f69b3b15ceb3c2de327
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