Table 5 Multivariate analysis of individual risk factors in each model for INTUBATION in patients with COVID-19

MuLBSTA Score (sensitivity 0.6800, specificity 0.8929)

 Multilobular infiltrates

–

 Lymphocyte ≤ 0.8 * 10 ⁹/L

–

 Bacterial coinfection

–

 Quit-smoker or acute-smoker

–

 Hypertension

–

 Age ≥ 60 years

–

CURB-65 Score (sensitivity 0.5556, specificity 0.7143)

 Disturbance of consciousness

–

 Blood urea nitrogen > 7 mmol/L

–

 Breathing rate ≥ 30/min

7.48

 Systolic pressure < 90 mmHg or diastolic pressure ≤ 60 mmHg

–

 Age ≥ 65 years

–

APACHEII Score (sensitivity 0.6190, specificity 0.9063)

 Temperature

–

 Heart rate

–

 Breathing rate

–

 Blood pressure

–

 Oxygen partial pressure

–

 PH

–

 K⁺

–

 Na⁺

–

 Creatinine

–

 HCT

–

 WBC

–

 Consciousness

–

 Age

–

 Chronic diseases

–