Demographic and clinical characteristics
A total of 29 patients, 16 men (55%), mean age 52.72 ± 18 years, were mechanically ventilated in MICU. Among the 29 patients enrolled, 13 patients recovered and 16 patients died (55%). The mean age of 13 patients who survived was 53±20.94 years, whereas in non-survivors, it was 52±17.17 years. Out of 13 survivors, 9 were males and 4 were females. On the other hand, out of 16 non-survivors, 8 were males. All observed patients presented with bilateral infiltrates on chest radiographs on admission. The mean P/F ratio (arterial oxygen concentration to the fraction of inspired oxygen) on day 1 was 86±28.59 mm Hg. The proportion of patients with bilateral infiltrate was similar among survivors and non-survivors. However, the P/F ratio was significantly lower among non-survivors (105.23 ±21.89 vs 66.63±9.75, P < 0.01).
Demographic and clinical characteristics of survivors and non-survivors at baseline are shown in Table 1.
Table 1. Demographic and clinical variables