Table 6 BIPAP/NIV initiation time at entry point and ferritin level COVID-19 pneumonia cases (n = 600)
BIPAP used (n = 600) with duration of illness | Abnormal ferritin level (n = 290) | Fourfold raised ferritin level (n = 310) | Analysis |
|---|---|---|---|
Entry point < 1 day (n = 180) | 110 | 70 | Chi test value 31.30 p < 0.00001 |
3–7 days (n = 310) | 150 | 160 | |
After 7 days (n = 110) | 30 | 80 |