Clinical features of elderly patients with COVID-19 in Wuhan, China

Table 2 Laboratory characteristics of elderly patients with COVID-19 at admission¹

Characteristic	Reference range	Total, n = 234	Survivors, n = 205	Deceased, n = 29	P value
White blood cells, × 109/L	3.5-9.5	5.9 (4.8-8.3)	5.6 (4.6-6.9)	8.4 (6.8-11.4)	< 0.0001
Lymphocytes, × 109/L	1.1-3.2	1.2 (0.9-1.6)	1.3 (1.0-1.7)	0.6 (0.4-0.9)	< 0.0001
Platelets, × 109/L	125-350	239 (177-300)	244 (186-303)	163 (112-271)	0.1400
C-reactive protein, mg/L	0-4	6.4 (1.9-34.2)	5.4 (1.6-20.7)	100.0 (25.4-153.5)	< 0.0001
D-dimer, mg/L	0-0.55	0.69 (0.44-1.24)	0.64 (0.4-1.035)	3.88 (0.895-7.245)	0.0025
Prothrombin time, s	9.2-15.0	13.2 (12.4-13.9)	13.0 (12.3-13.7)	14.7 (13.9-16.2)	< 0.0001
Activated partial thromboplastin time, s	21-37	28.3 (26.1-30.2)	28.3 (26.2-30.0)	28.8 (24.9-31.6)	0.8000
Fibrinogen, g/L	2-4	3.2 (2.8-3.7)	3.2 (2.8-3.6)	3.3 (2.8-4.2)	0.1500
Thrombin time, s	10-20	16.0 (15.1-16.9)	15.9 (15.0-16.6)	16.89 (15.7-17.9)	0.0007
Alanine aminotransferase, IU/L	9-50	23.2 (15.5-36.0)	22.3 (15.1-34.0)	31.1 (18.5-48.8)	0.0004
Aspartate aminotransferase, IU/L	15-40	21.8 (16.4-28.6)	21.4 (16.1-26.9)	30.6 (19.6-46.0)	< 0.0001
Albumin, g/L	40-55	35.1 (32.1-37.5)	35.3 (32.5-37.9)	32.7 (28.9-35.9)	0.0008
Blood glucose, mmol/L	3.9-6.1	5.1 (4.6-6.0)	5.0 (4.5-5.7)	6.9 (5.2-9.1)	< 0.0001
Blood urea nitrogen, mmol/L	2.5-6.4	4.7 (3.8-6.2)	4.6 (3.8-5.9)	6.2 (4.2-9.6)	0.0008
Creatinine, µmol/L	40-88	64.2 (56.400-76.125)	63.8 (56.5-74.9)	65.6 (56.0-81.6)	0.4300
Uric acid, µmol/L	112-416	265 (210-329)	267 (217-325)	257 (173-392)	0.4700
Creatine kinase, IU/L	24-170	43 (31-73)	41 (30-69)	46 (31-147)	< 0.0001
Lactate dehydrogenase, IU/L	120-250	199 (167-267)	194 (161-241)	354 (208-470)	< 0.0001
Creatine kinase-MB, IU/L	0-24	9.1 (7.2-12.5)	9.1 (7.0-12.0)	12.5 (8.6-20.0)	0.0008

¹Data are expressed as n (%) or median (interquartile range).