Table 3 Results of multinomial logistic regression for the analysis of variables associated with in-hospital mortality

Age > 80 years

2.11

1.43–3.10

< 0.001

Malignancy

3.02

2.15–4.24

< 0.001

Severe cardiovascular disease

2.76

1.97–3.87

< 0.001

Severe chronic kidney disease

3.33

2.12–5.23

< 0.001

Respiratory rate ≥ 22 breaths/min

3.38

2.23–5.13

< 0.001

Systolic blood pressure < 100 mmHg

2.18

1.58–3.00

< 0.001

AVPU responsiveness scale voice or unresponsive

3.07

2.10–4.51

< 0.001

Blood oxygen saturation level (SpO₂) < 90% in air

2.67

1.64–4.32

< 0.001

Platelet count < 50,000 cells/ mm³

4.81

2.07–11.20

< 0.001

Lactate > 4 mmol/l

4.00

2.58–6.23

< 0.001