Health records from 5,700 patients hospitalized within the Northwell Health system -- which housed the most patients in the country throughout the pandemic -- showed that 94 percent of patients had more than one disease other than COVID-19, according to the Journal of the American Medical Association (JAMA).

Data taken from March to early April showed that the median age of patients was 63 years old and 53 percent of all coronavirus patients suffered from hypertension, the most prevalent of the ailments among patients.

In addition, 42 percent of coronavirus patients who had body mass index (BMI) data on file suffered from obesity while 32 percent of all patients suffered from diabetes.

The study also revealed that the overwhelming majority of patients who were on ventilators eventually died, and those who did more often had diabetes.

Data gathered from 2,634 patients who either died or were discharged from the hospital showed that 12 percent of them were placed on ventilators and of those who were, 88 percent of them died.

“Having serious comorbidities increases your risk,” said Karina Davidson, one of the study’s authors and senior vice president for the Feinstein Institutes for Medical Research, which is part of the Northwell Health system, according to reports by Time.

“This is a very serious disease with a very poor outcome for those who have severe infections from it. We want patients with serious chronic disease to take a special precaution and to seek medical attention early, should they start showing signs and symptoms of being infected. That includes knowing that they’ve been exposed to someone who has this virus.”