Table 4 Chi-Square tests for LOP and HOP tests by Hospital admission, ICU admission, and death

LOP test * Hospital admission (COVID-19 negative group)

129

22.617^a

< 0.001

< 0.001

LOP test * Hospital admission (COVID-19 positive group)

175

43.957^b

< 0.001

< 0.001

HOP test * Hospital admission (COVID-19 negative group)

129

31.526^a

< 0.001

< 0.001

HOP test * Hospital admission (COVID-19 positive group)

175

36.504^a

< 0.001

< 0.001

LOP test * ICU admission (COVID-19 negative group)

125

1.347^b

0.246

0.351

LOP test * ICU admission (COVID-19 positive group)

170

12.683^a

< 0.001

< 0.001

HOP test * ICU admission (COVID-19 negative group)

125

4.528^a

0.033

0.046

HOP test * ICU admission (COVID-19 positive group)

170

18.229^a

< 0.001

< 0.001

LOP test * death (COVID-19 negative group)

125

0.795^b

0.373

0.512

LOP test * death (COVID-19 positive group)

170

2.475^b

0.116

0.209

HOP test * death (COVID-19 negative group)

125

1.440^a

0.230

0.367

HOP test * death (COVID-19 positive group)

170

7.989^a

0.005

0.003