Table 2

Admission characteristics

(n=200)ICU (n=77)Non-ICU (n=123)ICU versus non-ICU
Inpatient (%)89.5
Length of stay (days) (median ±IQR)9±1520±204±7p<0.001
Oxygen therapy (%)139 (69.5)77 (100.0)62 (50.4)
Maximum required FiO2 (%) n (%)
 2161 (30.5%)0 (0.0)61 (49.6)
 24–3653 (26.5%)5 (6.5)48 (39.0)
 40%–60%35 (17.5%)21 (27.3)14 (11.4)
 >60%51 (25.5%)51 (66.2)0 (0.0)
Invasive mechanical ventilation (%)55 (27.5)55 (71.4)na
Inpatient systemic steroid treatment, oral or intravenous (%)29 (14.5)21 (27.3)8 (6.5)
Peak d-dimer (0.00–0.55 mg/L)3.5±10.619.9±25.93.1±10.5p<0.001
Peak ferritin (30–400 μg/L) (median ±IQR)1360±14502492±1518775±1206p<0.001
Nadir lymphocyte (1.2–3.5×109/L) (median ±IQR)0.70±0.300.6±0.30.9±0.5p<0.001
Peak C reactive protein (0–4 mg/L) (median ±IQR)241.0±235304.5±211102.0±162p<0.001
  • FiO2, fractional inspired oxygen; ICU, intensive care unit.