Table 4.

Comparison of Laboratory Findings in Patient Groups Classified According to the Disease Severity (Mild, Moderate, and Severe)

	Mild		Severe		Critical
	Median	IQR (25-75)	Median	IQR (25-75)	Median	IQR (25-75)	p*
Hematological Parameters
WBC (10^3/uL)	6.70	5.25–8.43	6.27	5.02–7.90	6.88	5.82–10.06	0.035
Hemoglobin (g/dL)	13.8	12.50–15.10	13.60	12.50–14.60	12.80	11.50–13.80	0.002
Neutrophil (10^3/uL)	3.76	2.63–5.09	4.06	2.87–5.58	4.72	3.72–7.36	0.004
Lymphocyte (10^3/uL)	2.00	1.48–2.74	1.51	1.08–1.97	1.08	0.72–1.23	< 0.001
Thrombocyte (10^3/uL)	216.00	184.50–264.00	205.00	173.00–258.25	179.00	141.50–246.50	0.013
Biochemical Parameters
CRP (mg/L)	8.50	3.95–19.80	42.00	17.00–83.00	136.00	107.70–199.00	< 0.001
Procalcitonin (µg/L)	0.03	0.02–0.05	0.04	0.03–0.08	0.305	0.15–1.55	< 0.001
Lactate dehydrogenase (U/L)	218.50	177.00–259.00	274.00	217.00–341.00	357.00	267.00–480.00	< 0.001
Creatinine (mg/dL)	0.76	0.62–0.88	0.84	0.68–0.99	1.02	0.86–1.78	< 0.001
Albumin (g/L)	43.00	40.00–45.00	36.00	33.00–38.00	31.00	26.00–35.00	< 0.001
D-dimer (µg/L)	500.00	270.00–880.00	740.00	470.00–1065.00	1120.00	750.00–3220.00	< 0.001
Ferritin (µg/L)	86.85	39.07–183.55	184.00	99.00–333.50	247.00	112.00–541.00	< 0.001
Troponin (pg/mL)	2.70	1.45–4.00	3.70	2.15–5.52	6.40	3.60–22.85	< 0.001
Fibrinogen (mg/dL)	382.00	280.00–559.00	500.00	421.00–583.00	562.00	405.00–643.00	0.001
NLR	1.80	1.30–2.79	2.74	1.66–4.26	5.73	3.59–9.37	< 0.001
CRP/Abumin Ratio	0.20	0.08–0.71	1.29	0.48–2.68	4.86	3.22–6.04	< 0.001

Note: Data are expressed as median and interquartile range (IQR). *Kruskal–Wallis test was used to assess numerical data of patients grouped according to disease severity (eg, mild, severe, or critical).

Abbreviations: WBC, white blood cell; NLR, neutrophil–lymphocyte ratio; CRP, C-reactive protein.