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Published on: June 7, 2013
Hypertension, medications, and risk of severe COVID-19: A Massachusetts community-based observational study
Ann Z Bauer1, Rebecca Gore1, Susan R Sama1,2
1Department of Public Health, University of Massachusetts Lowell, Lowell, MA, USA.
Insights
Hypertension medications like ACE inhibitors and ARBs did not increase severe COVID-19 risk. Cardiovascular comorbidities, however, were linked to worse outcomes, especially in younger patients.
Area of Science:
- Cardiology
- Infectious Diseases
- Pharmacology
Background:
- Uncertainty exists regarding the impact of hypertension medications, specifically ACE inhibitors (ACEi) and angiotensin receptor blockers (ARB), on SARS-CoV-2 infection severity.
- Pre-existing cardiovascular conditions and diabetes are known risk factors for severe COVID-19.
Purpose of the Study:
- To evaluate the association between ACEi and ARB use and severe COVID-19 outcomes (hospitalization or mortality).
- To investigate if age, thiazide diuretic use, or specific health conditions modify these associations.
Main Methods:
- Observational study of 1449 patients diagnosed with COVID-19 from a Massachusetts group medical practice.
- Propensity score-matched analyses were used to assess the association of ACEi and ARB with severe COVID-19.
- Comorbidities, age, and concurrent medication use (e.g., thiazides) were analyzed as potential modifiers.
Main Results:
- Pre-infection comorbidities (hypertension, cardiovascular disease, diabetes) were associated with increased severe COVID-19 risk, particularly in patients under 65.
- Neither ACEi (OR=1.30) nor ARB (OR=0.94) use was significantly associated with an increased risk of severe COVID-19 after propensity score matching.
- Thiazide use did not alter the relationship between ACEi/ARB and COVID-19 severity. Other cardiovascular medications also showed no association with severity.
Conclusions:
- Cardiovascular comorbidities are significant risk factors for severe COVID-19, especially in younger adults (<65).
- Patients taking ACE inhibitors or ARBs do not face a substantially increased risk of severe COVID-19.
- Findings support continuing renin-angiotensin system (RAS) inhibitors for patients with hypertension during the COVID-19 pandemic.
Abstract:
It remains uncertain whether the hypertension (HT) medications angiotensin-converting enzyme inhibitors (ACEi) and angiotensin receptor blockers (ARB) mitigate or exacerbate SARS-CoV-2 infection. We evaluated the association of ACEi and ARB with severe coronavirus disease 19 (COVID-19) as defined by hospitalization or mortality among individuals diagnosed with COVID-19. We investigated whether these associations were modified by age, the simultaneous use of the diuretic thiazide, and the health conditions associated with medication use. In an observational study utilizing data from a Massachusetts group medical practice, we identified 1449 patients with a COVID-19 diagnosis. In our study, pre-infection comorbidities including HT, cardiovascular disease, and diabetes were associated with increased risk of severe COVID-19. Risk was further elevated in patients under age 65 with these comorbidities or cancer. Twenty percent of those with severe COVID-19 compared to 9% with less severe COVID-19 used ACEi, 8% and 4%, respectively, used ARB. In propensity score-matched analyses, use of neither ACEi (OR = 1.30, 95% CI 0.93 to 1.81) nor ARB (OR = 0.94, 95% CI 0.57 to 1.55) was associated with increased risk of severe COVID-19. Thiazide use did not modify this relationship. Beta blockers, calcium channel blockers, and anticoagulant medications were not associated with COVID-19 severity. In conclusion, cardiovascular-related comorbidities were associated with severe COVID-19 outcomes, especially among patients under age 65. We found no substantial increased risk of severe COVID-19 among patients taking antihypertensive medications. Our findings support recommendations against discontinuing use of renin-angiotensin system (RAS) inhibitors to prevent severe COVID-19.
Related Concept Videos
Hypertension and Regulation of Blood Pressure
Hypertension I: Introduction
Hypertension II: Pathophysiology
Hypertension III: Clinical Manifestations and Diagnostic Studies
Hypertension IV: Drug Therapy and Lifestyle Modifications
Hypertension V: Nursing Management

