“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

The Egyptian Journal of Internal Medicine

Table 3 Other variables and ferritin level in COVID-19 pneumonia cases (n = 1000)

COVID-19 RT-PCR positive (n = 1000)	Ferritin level normal (n = 320)	Ferritin level abnormal (n = 680)	Chi test value and p-value
Age > 50 years (n = 600)	140	460	χ² = 51.77 p < 0.00001
Age < 50 years (n = 400)	180	220	χ² = 51.77 p < 0.00001
Male gender (n = 650)	190	460	χ² = 6.5 p < 0.010
Female gender (n = 350)	130	220	χ² = 6.5 p < 0.010
Diabetes mellitus (n = 600)	150	450	χ² = 33.77 p < 0.00001
Without diabetes (n = 400)	170	230	χ² = 33.77 p < 0.00001
Hypertension (n = 210)	160	50	χ² = 238.55 p < 0.00001
Without hypertension (n = 790)	160	630	χ² = 238.55 p < 0.00001
COPD (n = 150)	100	50	χ² = 97.46 p < 0.00001
Without COPD (n = 850)	220	630	χ² = 97.46 p < 0.00001
IHD (n = 200)	110	90	χ² = 60.77 p < 0.00001
Without IHD (n = 800)	210	590	χ² = 60.77 p < 0.00001
Obesity (n = 160)	20	140	χ² = 33.28 p < 0.00001
Without obesity (n = 840)	300	540	χ² = 33.28 p < 0.00001