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. 2021 Jan 25;21:116. doi: 10.1186/s12879-021-05781-w

Table 5.

Risk factors for 30-day mortality according to univariate and multivariable Cox proportional hazards analysis

Univariate Cox regression analysis Multivariable Cox regression analysis
HR 95%CI p HR 95%CI p
Female gender 1.06 0.76–1.46 0.78
Multilobar infiltrates 1.25 0.85–1.85 0.458
Pleural effusion 1.28 0.86–1.89 0.25
PSI > 130 points (Class V) 3.88 2.30–6.55 0.0001 2.87 1.64–5.02 0.0001
Any in-hospital CV event 1.99 1.36–2.90 0.001 1.69 1.14–2.51 0.009
Newly diagnosed decompensated heart failure 1.62 1.56–2.55 0.039
New onset AF or flutter 1.04 0.64–1.58 0.99
CAD 1.02 0.64–1.65 0.9
COPD 1.04 0.71–1.55 0.84
Stroke/TIA 1.71 0.74–3.93 0.20
Arterial Hypertension 0.77 0.54–1.09 0.145
Cancer 1.69 1.10–2.60 0.019
Dementia 2.89 1.93–4.31 0.0001 2.41 1.58–3.67 0.0001
Comorbidities > 3 1.74 1.16–2.60 0.011
Acute Kidney Injury during hospitalisation 2.31 1.53–3.49 0.0001 1.86 1.21–2.87 0.005
CKD 1.84 1.16–2.92 0.013

AF Atrial fibrillation, CAD Coronary artery disease, COPD Chronic obstructive pulmonary disease, TIA Transient ischemic attack, CKD Chronic kidney disease