Table 8 Normal ferritin level (n = 320) at entry point and follow-up and its correlation with post-COVID lung fibrosis
Post-COVID pneumonia fibrosis | Ferritin normal at entry point and remained less than fourfold (n = 120) | Ferritin titer fourfold increased during follow-up (n = 200) | |
|---|---|---|---|
Pulmonary fibrosis present (n = 40) | 5 | 35 | Chi test value 12.19 p < 0.00048 |
Pulmonary fibrosis absent (n = 280) | 115 | 165 |