This study was a meta-analysis of the current scientific literature that finds that hypertension is associated with an up to 2.5-fold higher risk of severe and fatal COVID-19, especially in older individuals.
As amazing as it is, there are enough studies of hypertension and COVID-19 to do a pooled meta-analysis of studies. Researchers searched the literature to identify studies reporting the rate of hypertension in COVID-19 patients with varying outcomes.
The found that hypertension was associated with increased risk of severe COVID-19 disease (OR: 2.5), as well as a higher risk of mortality (OR: 2.4). In meta-regression, they found a significant correlation between the age of patients with severe COVID-19 and hypertension and severity.