Clinical, Biochemical, and ATR-FTIR Spectroscopic Parameters Associated with Death or Survival in Patients with Severe COVID-19

Table 3

Evolution of patients.

Evolution	COVID-19 n (%)	Survival n (%)	Death n (%)	, X^2
Sampling day	8 (5, 15)	8 (5, 15)	6 (3, 8)	0.059
Intubation rate (%)	12/103 (11.7)	3/86 (3.5)	9/17 (52.9)	0.0001, 33.724
Hospitalization stay (days)	18 (10, 26)	16 (10, 26)	18 (11, 21)	0.4

The bold values refer to statistical significance in each group.