Research Article

Distinct Symptoms and Underlying Comorbidities with Latitude and Longitude in COVID-19: A Systematic Review and Meta-Analysis

Figure 5

Comparison of the comorbidities of mild and severe COVID-19 patients in different areas. Hypertension includes primary hypertension and secondary hypertension; diabetes includes type 1 diabetes and type 2 diabetes; cardiovascular disease includes coronary artery disease, arrhythmia, congestive heart failure; lung disease includes COPD, asthma, obstructive sleep apnea; cancer includes all kinds of cancer.