• Preventive medicine · Feb 2022

    Fraction of COVID-19 hospitalizations and deaths attributable to chronic diseases.

    • Francisco Reyes-Sánchez, Ana Basto-Abreu, Rossana Torres-Alvarez, Francisco Canto-Osorio, Romina González-Morales, Dwight D Dyer-Leal, Ruy López-Ridaura, Christian A Zaragoza-Jiménez, Juan A Rivera, and Tonatiuh Barrientos-Gutiérrez.
    • National Institute of Public Health, Population Health Research Center, Mexico.
    • Prev Med. 2022 Feb 1; 155: 106917106917.

    AbstractEvidence shows that chronic diseases are associated with COVID-19 severity and death. This study aims to estimate the fraction of hospitalizations and deaths from COVID-19 attributable to chronic diseases associated to poor nutrition and smoking among adults who tested positive to COVID-19 in Mexico. We analyzed 1,006,541 adults aged ≥20 who tested positive for COVID-19 from March 23 to December 5, 2020. Six chronic diseases were considered: obesity, chronic obstructive pulmonary disease (COPD), hypertension, diabetes, cardiovascular disease, and chronic kidney disease (CKD). We calibrated the database using a bias quantification method to consider undiagnosed disease cases. To estimate the total impact of multiple diseases, we defined a multimorbidity variable according to the number of diseases. Risks of hospitalization and death were estimated with Poisson regression models and used to calculate population attributable fractions (PAFs). Chronic diseases accounted for to 25.4% [95% CI: 24.8%-26.1%], 28.3% (95% CI: 27.8%-28.7%) and 15.3% (95% CI: 14.9%-15.7%) of the hospitalizations among adults below 40, 40-59, and 60 years and older, respectively. For COVID-19-related deaths, 50.1% (95% CI: 48.6%-51.5%), 40.5% (95% CI: 39.7%-41.3%), and 18.7% (95% CI, 18.0%-19.5%) were attributable to chronic diseases in adults under 40, 40-59, and 60 years and older, respectively. Chronic diseases linked to poor nutrition and smoking could have contributed to a large burden of hospitalization and deaths from COVID-19 in Mexico, particularly among younger adults. Medical and structural interventions to curb chronic disease incidence and facilitate disease control are urgently needed.Copyright © 2021 Elsevier Inc. All rights reserved.

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