. 2020 Oct 30;3(10):e2023934. doi: 10.1001/jamanetworkopen.2020.23934

Table 2. Model Coefficients.

Feature	Coefficients for COVID-19
Feature	Severe illness model	Mortality model
Age at admission	0.0129	0.0357
Baseline Spo₂	−0.0009	−0.0107
Blood urea nitrogen level (continuous)	0.0091	0.0193
C-reactive protein level (continuous)	0.0014	Not included^a
Charlson Comorbidity Index	0.0196	0.0137
Creatinine level (high)	0.2546	0.3607
Estimated glomerular filtration rate (low)	0.0736	0.0013
Eosinophil count (continuous)	−0.3129	−0.2550
Glucose level (continuous)	0.0015	Not included^a
Lactate dehydrogenase level (continuous)	0.0031	0.0014
Lymphocyte count (continuous)	−0.0044	−0.0021
Absolute lymphocyte count (low)	0.3049	0.1523
Mean corpuscular hemoglobin concentration (low)	Not included^a	0.0099
Monocyte count (low)	0.2437	Not included^a
Neutrophil count (continuous)	0.0007	Not included^a
Absolute neutrophil count (high)	0.2332	0.3655
Absolute nucleated red blood cell count (high)	Not included^a	0.3478
Platelet count (continuous)	−0.0007	Not included^a
Platelet count (low)	0.1195	0.2360
Prior diagnosis of respiratory infections (CCS 8.1)	0.0804	Not included^a
Prior diagnosis of COPD or bronchiectasis (CCS 8.2)	Not included^a	0.0454
Prior diagnosis of dementia/delirium (CCS 5.4)	Not included^a	0.0366
Prior diagnosis of external causes of injury (CCS 18)	Not included^a	0.0238
Prior diagnosis of lung cancer (CCS 2.2)	Not included^a	0.0389
Prior diagnosis of respiratory failure/insufficiency (CCS 8.6)	Not included^a	0.0373
Procalcitonin level (continuous)	Not included^a	0.1823
Red blood cell distribution width (continuous)	Not included^a	0.0451
Troponin T level (continuous)	0.0045	0.0030
White blood cell count (high)	Not included^a	0.0064

Abbreviations: CCS, Clinical Classification Software; COPD, chronic obstructive pulmonary disease; COVID-19, coronavirus disease 2019; Spo₂, oxygen saturation as measured by pulse oximetry.

^{^a}

The specific feature was not included in the model for the outcome.