Table 5 Clinical factors associated with in-hospital mortality in non-elderly pneumonia patients

Age (years)

1.04 (1.01–1.07)

0.022

n/a

n/a

Sex (male)

1.15 (0.65–2.03)

0.643

n/a

n/a

Charlson comorbidity index

1.21 (1.1–1.34)

< 0.001

1.12 (0.99–1.28)

0.078

Do-not-resuscitate status

8.3 (4.38–15.74)

< 0.001

6.81 (3.18–14.59)

< 0.001

Body temperature (°C)

0.85 (0.63–1.15)

0.288

n/a

n/a

Mean arterial pressure (mmHg)

0.99 (0.97-1)

0.014

n/a

n/a

Pulse rate (beats/min)

1 (0.99–1.01)

0.948

n/a

n/a

Respiratory rate (breaths/min)

0.98 (0.95–1.01)

0.248

n/a

n/a

Glasgow coma scale score

0.85 (0.79–0.93)

< 0.001

0.89 (0.8–0.99)

0.025

Hemoglobin (g/dL)

0.91 (0.82–1.01)

0.087

n/a

n/a

White blood cells (×1000/µL)

1 (1–1)

0.929

n/a

n/a

Platelet (×10,000/µL)

1 (1–1)

0.006

1 (1–1)

0.038

Glomerular filtration rate (ml/min/1.73m2)

1 (0.99-1)

0.442

n/a

n/a

Type of pneumonia

0.227

n/a

Community-acquired pneumonia

Reference

-

n/a

n/a

Hospital-acquired pneumonia

1.58 (0.89–2.81)

0.117

n/a

n/a

Ventilator-associated pneumonia

2.51 (0.34–18.51)

0.366

n/a

n/a

Initial oxygen support

0.002

0.079

None

Reference

-

Reference

-

Cannula

3.63 (1-13.16)

0.05

3.16 (0.77–13.03)

0.112

Mask with bag

9.3 (2.55–33.92)

0.001

3.48 (0.83–14.67)

0.089

Endotracheal tube

6 (1.48–24.3)

0.012

5.97 (1.17–30.35)

0.031

Others

2.12 (0.42–10.65)

0.363

1.03 (0.17–6.35)

0.979