Impact of undiagnosed type 2 diabetes and pre-diabetes on severity and mortality for SARS-CoV-2 infection

Introduction Diabetes and hyperglycemia are risk factors for critical COVID-19 outcomes; however, the impact of pre-diabetes and previously unidentified cases of diabetes remains undefined. Here, we profiled hospitalized patients with undiagnosed type 2 diabetes and pre-diabetes to evaluate its impa...

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Main Authors: Omar Yaxmehen Bello-Chavolla, Jessica Paola Bahena-López, Arsenio Vargas-Vázquez, Neftali Eduardo Antonio-Villa, Roopa Mehta, Carlos Alberto Aguilar-Salinas, Edgar Ortiz-Brizuela, Alejandro Campos-Muñoz, Marco Villanueva-Reza, María Fernanda González-Lara, Alfredo Ponce de León, Jose Sifuentes-Osornio
Format: Article
Language:English
Published: BMJ Publishing Group 2021-03-01
Series:BMJ Open Diabetes Research & Care
Online Access:https://drc.bmj.com/content/9/1/e002026.full
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author Omar Yaxmehen Bello-Chavolla
Jessica Paola Bahena-López
Arsenio Vargas-Vázquez
Neftali Eduardo Antonio-Villa
Roopa Mehta
Carlos Alberto Aguilar-Salinas
Edgar Ortiz-Brizuela
Alejandro Campos-Muñoz
Marco Villanueva-Reza
María Fernanda González-Lara
Alfredo Ponce de León
Jose Sifuentes-Osornio
author_facet Omar Yaxmehen Bello-Chavolla
Jessica Paola Bahena-López
Arsenio Vargas-Vázquez
Neftali Eduardo Antonio-Villa
Roopa Mehta
Carlos Alberto Aguilar-Salinas
Edgar Ortiz-Brizuela
Alejandro Campos-Muñoz
Marco Villanueva-Reza
María Fernanda González-Lara
Alfredo Ponce de León
Jose Sifuentes-Osornio
author_sort Omar Yaxmehen Bello-Chavolla
collection DOAJ
description Introduction Diabetes and hyperglycemia are risk factors for critical COVID-19 outcomes; however, the impact of pre-diabetes and previously unidentified cases of diabetes remains undefined. Here, we profiled hospitalized patients with undiagnosed type 2 diabetes and pre-diabetes to evaluate its impact on adverse COVID-19 outcomes. We also explored the role of de novo and intrahospital hyperglycemia in mediating critical COVID-19 outcomes.Research design and methods Prospective cohort of 317 hospitalized COVID-19 cases from a Mexico City reference center. Type 2 diabetes was defined as previous diagnosis or treatment with diabetes medication, undiagnosed diabetes and pre-diabetes using glycosylated hemoglobin (HbA1c) American Diabetes Association (ADA) criteria and de novo or intrahospital hyperglycemia as fasting plasma glucose (FPG) ≥140 mg/dL. Logistic and Cox proportional regression models were used to model risk for COVID-19 outcomes.Results Overall, 159 cases (50.2%) had type 2 diabetes and 125 had pre-diabetes (39.4%), while 31.4% of patients with type 2 diabetes were previously undiagnosed. Among 20.0% of pre-diabetes cases and 6.1% of normal-range HbA1c had de novo hyperglycemia. FPG was the better predictor for critical COVID-19 compared with HbA1c. Undiagnosed type 2 diabetes (OR: 5.76, 95% CI 1.46 to 27.11) and pre-diabetes (OR: 4.15, 95% CI 1.29 to 16.75) conferred increased risk of severe COVID-19. De novo/intrahospital hyperglycemia predicted critical COVID-19 outcomes independent of diabetes status.Conclusions Undiagnosed type 2 diabetes, pre-diabetes and de novo hyperglycemia are risk factors for critical COVID-19. HbA1c must be measured early to adequately assess individual risk considering the large rates of undiagnosed type 2 diabetes in Mexico.
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spelling doaj-art-d5886f1cfe044a4482798cb203d607632025-08-20T02:50:24ZengBMJ Publishing GroupBMJ Open Diabetes Research & Care2052-48972021-03-019110.1136/bmjdrc-2020-002026Impact of undiagnosed type 2 diabetes and pre-diabetes on severity and mortality for SARS-CoV-2 infectionOmar Yaxmehen Bello-Chavolla0Jessica Paola Bahena-López1Arsenio Vargas-Vázquez2Neftali Eduardo Antonio-Villa3Roopa Mehta4Carlos Alberto Aguilar-Salinas5Edgar Ortiz-Brizuela6Alejandro Campos-Muñoz7Marco Villanueva-Reza8María Fernanda González-Lara9Alfredo Ponce de León10Jose Sifuentes-Osornio11Dirección de Investigación, Instituto Nacional de Geriatría, Mexico City, MexicoMD/PhD (PECEM) Program, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, MexicoUnidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, Mexico City, MexicoMD/PhD (PECEM) Program, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, MexicoDepartamento de Endocrinología y Metabolismo, Unidad de Investigación en Enfermedades Metabolicas, Instituto Nacional de Ciencias Médicas y Nutrición, Salvador Zubirán, Ciudad de Mexico, MexicoInstituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, MexicoDepartamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, Mexico City, MexicoUnidad de Investigación de Enfermedades Metabólicas, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, Mexico City, MexicoDepartamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, Mexico City, MexicoDepartamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, Mexico City, MexicoDepartamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, Mexico City, MexicoDirección de Medicina, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, Tlalpan, MexicoIntroduction Diabetes and hyperglycemia are risk factors for critical COVID-19 outcomes; however, the impact of pre-diabetes and previously unidentified cases of diabetes remains undefined. Here, we profiled hospitalized patients with undiagnosed type 2 diabetes and pre-diabetes to evaluate its impact on adverse COVID-19 outcomes. We also explored the role of de novo and intrahospital hyperglycemia in mediating critical COVID-19 outcomes.Research design and methods Prospective cohort of 317 hospitalized COVID-19 cases from a Mexico City reference center. Type 2 diabetes was defined as previous diagnosis or treatment with diabetes medication, undiagnosed diabetes and pre-diabetes using glycosylated hemoglobin (HbA1c) American Diabetes Association (ADA) criteria and de novo or intrahospital hyperglycemia as fasting plasma glucose (FPG) ≥140 mg/dL. Logistic and Cox proportional regression models were used to model risk for COVID-19 outcomes.Results Overall, 159 cases (50.2%) had type 2 diabetes and 125 had pre-diabetes (39.4%), while 31.4% of patients with type 2 diabetes were previously undiagnosed. Among 20.0% of pre-diabetes cases and 6.1% of normal-range HbA1c had de novo hyperglycemia. FPG was the better predictor for critical COVID-19 compared with HbA1c. Undiagnosed type 2 diabetes (OR: 5.76, 95% CI 1.46 to 27.11) and pre-diabetes (OR: 4.15, 95% CI 1.29 to 16.75) conferred increased risk of severe COVID-19. De novo/intrahospital hyperglycemia predicted critical COVID-19 outcomes independent of diabetes status.Conclusions Undiagnosed type 2 diabetes, pre-diabetes and de novo hyperglycemia are risk factors for critical COVID-19. HbA1c must be measured early to adequately assess individual risk considering the large rates of undiagnosed type 2 diabetes in Mexico.https://drc.bmj.com/content/9/1/e002026.full
spellingShingle Omar Yaxmehen Bello-Chavolla
Jessica Paola Bahena-López
Arsenio Vargas-Vázquez
Neftali Eduardo Antonio-Villa
Roopa Mehta
Carlos Alberto Aguilar-Salinas
Edgar Ortiz-Brizuela
Alejandro Campos-Muñoz
Marco Villanueva-Reza
María Fernanda González-Lara
Alfredo Ponce de León
Jose Sifuentes-Osornio
Impact of undiagnosed type 2 diabetes and pre-diabetes on severity and mortality for SARS-CoV-2 infection
BMJ Open Diabetes Research & Care
title Impact of undiagnosed type 2 diabetes and pre-diabetes on severity and mortality for SARS-CoV-2 infection
title_full Impact of undiagnosed type 2 diabetes and pre-diabetes on severity and mortality for SARS-CoV-2 infection
title_fullStr Impact of undiagnosed type 2 diabetes and pre-diabetes on severity and mortality for SARS-CoV-2 infection
title_full_unstemmed Impact of undiagnosed type 2 diabetes and pre-diabetes on severity and mortality for SARS-CoV-2 infection
title_short Impact of undiagnosed type 2 diabetes and pre-diabetes on severity and mortality for SARS-CoV-2 infection
title_sort impact of undiagnosed type 2 diabetes and pre diabetes on severity and mortality for sars cov 2 infection
url https://drc.bmj.com/content/9/1/e002026.full
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