© Gov. Andrew Cuomo's Office New data show 88 percent of COVID-19 patients on ventilators in New York City's largest hospital system didn't survive.

NEW YORK CITY — New data from New York's largest health system showed nearly 90 percent of novel coronavirus patients put on ventilators died.

The medical journal JAMA published Wednesday a new study showing 88 percent of COVID-19 patients who received invasive mechanical ventilation in the Northwell Health system lost their lives.

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The JAMA analysis examined 5,700 COVID-19 patients within the Northwell hospitals in New York City, Long Island and Westchester. A total of 320, or 12.2 percent, of patients received ventilation.

Roughly 80 percent of people on ventilators did not survive before the pandemic began, according to the study.

New York Gov. Andrew Cuomo has frequently relied on that estimate during his daily COVID-19 news briefings.

Karina W. Davidson, the study’s lead author, told the Washington Post, “For those who have a severe enough course to require hospitalization through the emergency department it is a sad number."

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