Variables Variables Hospital B Hospital B Hospital A Hospital A Total Total P-value
n % n % N %
Initial O2 satuartion (%); Mean±SD Initial O2 satuartion (%); Mean±SD 85.4±8.5 85.4±8.5 82.5±9.8 82.5±9.8 83.9±9.2 83.9±9.2 0.173
Bilateral Infiltrates No 28 73.7 26 68.4 54 71.1 0.613
Yes 10 26.3 12 31.6 22 28.9