Prevalence of underlying diseases in died cases of COVID-19: A systematic review and meta-analysis.
Fatemeh JavanmardiAbdolkhalegh KeshavarziAli AkbariAfagh MoattariNeda PirbonyehPublished in: PloS one (2020)
In summary, underlying disease have a critical role in poor outcomes, severity of disease and high mortality rate of COVID-19 cases. Patients with hypertension, cardiovascular disease and diabetes should be carefully monitored and be aware of health protocols.