Table 1.

Characteristics of patients

Patient characteristics (n = 81)
Male/female	63/18
Age (years): mean ± SD; (range)	62.11 ± 19.70 (20.0–96.0)
Hypertension [n(%)]	33 (40.7)
Diabetes mellitus [n(%)]	13 (16.0)
APACHEII (score): mean ± SD; (range)	25.10 ± 5.98; (10–43)
LRTI [n(%)]	41 (50.6)
Duration of ventilation days: M(Q1–Q3); (range)	5 (3–8); (0.5–87.0)

APACHE (Acute Physiology and Chronic Health Evaluation) II; LRTI: Lower respiratory tract infection