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. 2021 Nov 29;17(3):761–775. doi: 10.1007/s11739-021-02870-1

Table 6.

Risk factors for in-hospital mortality in the matched-cohort

Univariate analysis Multivariate analysis
OR (95% CI) p value OR (95% CI) p value
Age 1.06 (1.05–1.07) < 0.001 1.19 (1.02–1.38) 0.030
Gender (female) 0.85 (0.76–0.95) 0.005 0.73 (0.63–0.83) < 0.001
BMI 1.02 (1.01–1.03) 0.003 NS

Smoking behavior

Never (ref.)

Former smoker

Current smoker

1

1.19 (1.07–1.34)

0.83 (0.64–1.08)

0.002

0.161

NS

Degree of dependency

Mild (ref.)

Moderate

Severe

1

2.47 (2.14–2.85)

3.03 (2.60–3.53)

< 0.001

< 0.001

1

1.54 (1.29–1.84)

2 (1.65–2.42)

< 0.001

< 0.001

Arterial hypertension 1.45 (1.26–1.67) < 0.001 NS
Dyslipidemia 1.04 (0.93–1.16) 0.545
Diabetes mellitus 1.17 (1.04–1.30) 0.008 NS
Ischaemic cardiopathy 1.36 (1.20–1.54) < 0.001 NS
Chronic heart failure 2.14 (1.83–2.49) < 0.001 1.21 (1.01–1.47) 0.049
Atrial fibrillation 1.96 (1.66–2.33) < 0.001 NS
Cerebrovascular disease 1.41 (1.23–1.61) < 0.001 NS
Peripheral arterial disease 1.53 (1.30–1.81) < 0.001 NS
Dementia 2.26 (1.97–2.58) < 0.001 NS
COPD 1.46 (1.24–1.72) < 0.001 NS
Chronic liver disease 1.04 (0.79–1.36) 0.780
Severe chronic renal failure 1.85 (1.58–2.17) < 0.001 NS
Charlson index 1.19 (1.16–1.22) < 0.001 1.12 (1.08–1.16) < 0.001
Respiratory rate > 20 rpm 3.65 (3.26–4.10) < 0.001 2.49 (2.19–2.84) < 0.001
PaO2/FiO2 0.99 (0.99–0.99) < 0.001 0.99 (0.99–0.99) < 0.001
Lymphocyte count × 106/L 0.99 (0.99–0.99) < 0.001 0.99 (0.99–0.99) < 0.001
CRP (mg/L) 1.01 (1.01–1,01) < 0.001 1.01 (1.01–1.01) < 0.001
LDH (U/L) 1.01 (1.01–1,01) < 0.001 1.01 (1.01–1.01) < 0.001
Ferritin (mcg/L) 1.01 (1.01–1,01) < 0.001 1.01 (1.01–1.01) 0.001
d-dimer (ng/mL) 1.01 (1.01–1.01) < 0.001 NS

LMWH

None (ref.)

Prophylactic doses

Intermediate doses

Full doses

1

0.48 (0.41–0.56)

0.57 (0.46–0.72)

0.79 (0.65–0.97)

< 0.001< 0.001

0.025

1

0.44 (0.37–0.54)

0.41 (0.31–0.53)

0.52 (0.41–0.67)

< 0.001

< 0.001

< 0.001

Steroids 1.46 (1.31–1.63) < 0.001 1.22 (1.07–1.4) 0.003
Tocilizumab 1.29 (1.06–1.56) 0.009 1.71 (1.36–2.16) < 0.001
ASA 1.01 (0.90–1.12) 0.938 1.05 (0.92–1.19) 0.476

BMI body mass index, NS not significant, COPD chronic obstructive pulmonary disease, CRP C-reactive protein, LDH lactate dehydrogenase, LMWH low-molecular-weight heparin, ASA acetylsalicylic acid