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. 2021 Jun 4;16(6):e0252799. doi: 10.1371/journal.pone.0252799

Fig 6. Plasma ACE2 and maximal acuity group during the 28-day period in COVID-19 positive and negative patients.

Fig 6

A. Plasma ACE2 and outcome group in COVID-19-positive patients. B. Plasma ACE2 and outcome group in COVID-19 negative patients. The acuity group is the maximum acuity group during the 28-day period with death being the maximum possible. A1 = Death within 28 days. A2 = Intubated, ventilated, survived to 28 days. A3 = Hospitalized, supplementary O2 required. A4 = Hospitalized, no supplementary O2 required. A5 = Discharged directly from ED and not subsequently hospitalized within 28 days. Data were analyzed using the Mann Whitney test. Bars indicate median and interquartile range. **** P < 0.0001. ns = not significant.