From: “Serial ferritin titer” monitoring in COVID-19 pneumonia: valuable inflammatory marker in assessment of severity and predicting early lung fibrosis — prospective, multicentric, observational, and interventional study in tertiary care setting in India
Duration of illness
Normal ferritin (n = 320)
Abnormal ferritin (n = 680)
Analysis
< 7 days (n = 340)
30
310
Chi test value 185.65 p < 0.00001
8–15 days (n = 460)
160
300
> 15 days (n = 200)
130
70