Correlation between the serum level of ferritin and D-dimer and the severity of COVID-19 infection

The Egyptian Journal of Bronchology

Table 2 Comparison between the different degrees of severity of COVID-19 infection and serum values of D-dimer and ferritin

		Mild	Moderate	Severe	Critical	Test value ^a	P value
		No. = 39	No. = 21	No. = 18	No. = 72	Test value ^a	P value
D-dimer (ng/ml)	Median (IQR) ^b	275 (150–460)	728 (205–1116)	916 (142–1540)	1883 (924.5–4619.5)	46.707 ^a	< 0.0001
D-dimer (ng/ml)	Range	14–10,000	50–3394	45–10,000	242–10,000	46.707 ^a	< 0.0001
Serum Ferritin (ng/ml)	Median (IQR) ^b	75 (49–200)	346 (183–1176)	417 (132–900)	742 (427.5–1200)	58.551^a	< 0.0001
Serum Ferritin (ng/ml)	Range	8–830	13–2000	67–1200	64–120,000	58.551^a	< 0.0001

P value > 0.05 non-significant, P value < 0.05 significant, P value < 0.01 highly significant
^aKruskal-Wallis test
^bIQR Interquartile range