A study published yesterday in JAMA of 1,591 COVID-19 patients in the intensive care units (ICUs) of 72 hospitals Lombardy, Italy, has found that 99% required respiratory support with high levels of oxygen, 82% were male, 68% had at least one underlying illness, and 26% died.Also, yesterday in The Lancet Respiratory Medicine, the Asian Critical Care Clinical Trials Group published comprehensive guidelines for ICU treatment of coronavirus patients.Older age, underlying conditions tied to worse outcomesIn the largest known ICU case series thus far, researchers described the baseline characteristics and outcomes of coronavirus patients from Feb 20 to Mar 18.