Sub-groups | sHR (95% confidence interval) | P value |
---|---|---|
PaO2/FiO2 ratio | ||
> 100 mm Hg | 3.44 (2.04–5.78) | < 0.001 |
≤ 100 mm Hg | 2.17 (1.07–4.41) | 0.03 |
Serum ferritin level | ||
< 1000 mcg/L | 3.45 (1.87–6.38) | < 0.001 |
≥ 1000 mcg/L | 2.79 (1.52–5.11) | 0.001 |
Time from ICU admission to IVIG therapy | ||
< 5 days | 2.65 (1.07–6.56) | 0.035 |
≥ 5 days | 3.89 (1.85–8.18) | < 0.001 |
Number of IVIG doses received | ||
≤ 3 doses | 3.72 (1.39–9.91) | 0.009 |
> 3 doses | 3.42 (1.69–6.93) | 0.001 |