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Hypertension, Diabetes and Obesity, Major Risk Factors for Death in Patients with COVID-19 in Mexico
Jorge Escobedo-de la Peña1, Ramón Alberto Rascón-Pacheco2, Iván de Jesús Ascencio-Montiel2
1Unidad de Investigación en Epidemiología Clínica, Hospital Regional 1, Instituto Mexicano del Seguro Social, Benito Juárez, Ciudad de México, México.
Insights
COVID-19 mortality in Mexico is high, especially in males and older adults. Comorbidities like obesity, hypertension, and diabetes significantly increase fatality risk, highlighting the need for targeted public health interventions.
Area of Science:
- Epidemiology
- Public Health
- Infectious Diseases
Background:
- Mexico faces high COVID-19 death and case fatality rates.
- Comorbidities such as hypertension, diabetes, and chronic kidney disease are linked to COVID-19 mortality.
Purpose of the Study:
- To characterize COVID-19 clinical features in Mexico's primary social security institution.
- To assess the impact of chronic comorbidities on COVID-19 mortality and calculate population attributable fractions.
Main Methods:
- Analysis of SARS-CoV-2 positive patient data from an institutional database.
- Evaluation of demographic factors, pneumonia, hospitalization status, and comorbidities.
- Estimation of case fatality rates, odds ratios, and population attributable fractions.
Main Results:
- Over 323,000 COVID-19 cases identified by November 2020.
- Higher case fatality rates observed in males (20.2%) and with increasing age.
- Obesity, hypertension, and diabetes significantly increased COVID-19 fatality risk; these were major independent risk factors along with pneumonia and end-stage kidney disease.
Conclusions:
- Key cardiovascular risk factors and comorbidities elevate the risk of death in COVID-19 patients.
- Identifying high-fatality populations informs public health strategies for managing the pandemic in Mexico.
Background:
Mexico has reported high death and case fatality rates due to COVID-19. Several comorbidities have been related to mortality in COVID-19, as hypertension, diabetes, coronary heart disease, chronic obstructive lung disease and chronic kidney disease.
Aims:
To describe the main clinical characteristics of COVID-19 in the major social security institution in Mexico, as well as the contribution of chronic comorbidities and the population attributable fraction related to them.
Methods:
Data for all patients with a positive test for SARS-CoV-2 in the institutional database was included for analysis. Demographic information, the presence of pneumonia and whether the patient was hospitalized or treated at home as an outpatient as well as comorbidities were analyzed. Case fatality rate was estimated for different groups. Odds ratios with 95% confidence intervals from a logistic regression model were estimated, as well as the population attributable fraction.
Results:
By November 13, 2020, 323,671 subjects with COVID-19 infection have been identified. Case fatality rate is higher in males (20.2%), than in females (13.0%), and increases with age. Case fatality rate increased with the presence of obesity, hypertension and/or diabetes. Age and sex were major independent risk factors for mortality, as well as the presence of pneumonia, diabetes, hypertension, obesity, immunosuppression, and end-stage kidney disease. The population attributable fraction due to obesity in outpatients was 16.8%.
Conclusions:
Major cardiovascular risk factors and other comorbidities increase the risk of dying in patients with COVID-19. Identification of populations with high fatality in COVID-19, provides insight to deal with this pandemic by health services in Mexico.
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