Retrospective Cohort Study
Copyright ©The Author(s) 2022.
World J Clin Infect Dis. Sep 29, 2022; 12(2): 50-60
Published online Sep 29, 2022. doi: 10.5495/wjcid.v12.i2.50
Table 2 Matrix of Phi coefficient for binary outcomes

Death
ICU
BiPAP
VENT
HFNC
Death1----
ICU0.671---
BiPAP0.710.701--
VENT0.600.940.651-
HFNC0.580.480.670.431