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. 2021 Mar 20;21:96. doi: 10.1186/s12890-021-01455-0

Table 5.

Univariate and multivariable predictors of 28-day mortality since hospitalization

Univariate model (all candidate predictors) Multivariable model (selected predictors*)
OR (95% CI) p OR (95% CI) p
Male sex 1.75 (1.10–2.80) 0.019 1.05 (0.47–2.37) 0.898
Age—y
 ≤ 59 1.00 (Ref.) 1.00 (Ref.)
 60–69 3.19 (1.40–7.29) 0.006 2.84 (0.91–8.86) 0.072
 70–77 8.99 (4.14–19.54)  < 0.001 13.36 (4.39–40.60)  < 0.001
 ≥ 78 19.59 (8.89–43.15)  < 0.001 31.73 (9.29–108.44)  < 0.001
Former smoker 2.17 (1.31–3.58) 0.003
Hypertension 3.09 (2.00–4.78)  < 0.001
Diabetes
 No diabetes 1.00 (Ref.)
 Diabetes, not insulin dependent 1.76 (0.98–3.13) 0.057
 Diabetes, insulin dependent 3.51 (1.52–8.08) 0.003
Chronic Kidney Failure 2.56 (1.22–5.36) 0.012
COPD 1.98 (1.04–3.79) 0.039
Active hematologic malignancy 5.41 (1.41–20.72) 0.014
Previous Myocardial Infarction 3.23 (1.79–5.83) < 0.001
Vasculopathy 3.18 (1.78–5.68) < 0.001
ACE–inhibitors 2.09 (1.25–3.49) 0.005
OAT/DOACs 1.96 (1.08–3.54) 0.026
Antiplatelets 3.10 (1.98–4.87) < 0.001
Immunosuppression 2.20 (1.01–4.82) 0.048
Flu vaccine 2.53 (1.51–4.25) < 0.001
Symptoms onset—ER, per 1-day increase 0.92 (0.87–0.97) 0.001
Cough 0.61 (0.40–0.91) 0.016
Dyspnea before admission 1.66 (1.09–2.52) 0.018
Systemic symptoms 0.61 (0.39–0.96) 0.032
CPAP/NIV in the first 24 h 4.73 (2.97–7.53) < 0.001 7.07 (3.20–15.61) < 0.001
PaO2/FiO2 ratio < 200 3.73 (2.26–6.14) < 0.001 3.05 (1.49–6.24) 0.002
Blood urea, per 1-unit increase 1.02 (1.01–1.02) < 0.001 1.01 (1.00–1.02) 0.041