Studies from China and Italy have shown that hypertension, diabetes and history of cardiovascular disease are the most frequent comorbidities in patients infected with SARS-CoV-2. , ,  Older age and male sex are two additional factors associated with SARS-CoV-2 infection. , ,  A similar picture emerged a few years ago with the SARS-CoV infection. [57,58]
In a study conducted in 201 patients infected with SARS-CoV-2, most patients were men (63.7% of patients), the mean age was 51 years and the most frequent comorbidities were hypertension (19.4%), diabetes (10.9%) and history of cardiovascular disease (4.0).  Notably, the patients who developed ARDS were older and had a higher prevalence of hypertension (27.4% Vs. 13.7%), diabetes (19.0% Vs. 5.1%) when compared with those who did not develop ARDS.  In a multivariate analysis, the factors associated with progression from ARDS syndrome to death included older age, neutrophilia and hyper-coagulation, mainly reflected by a higher D-dimer.  Abnormal coagulation parameters and enhanced thrombosis predict a poor prognosis in patients with SARS-CoV-2.  A meta-analysis of 8 studies conducted in China on a total of 46,248 patients infected with SARS-CoV2 confirmed that hypertension, diabetes and history of cardiovascular disease were the most frequent comorbidities in these patients.  Again, hypertension and history of cardiovascular disease were significantly more prevalent among the more severe patients. 
In a recent analysis of 1591 infected patients from Italy, the mean age of patients was 63 years, men were 82% and the prevalence of patients with hypertension, diabetes and previous cardiovascular disease was 49%, 17% and 21%, respectively.  Patients with hypertension were older that those without hypertension (66 vs 62 years, p=0.005). When comparing the patients who died in the Intensive Care Unit with those who survived, the former were older and had a higher prevalence of hypertension (63% Vs. 40%, p<0.001).
Source ReF : https://www.ncbi.nlm.nih.gov