Table 1.

Range and mean vascular endothelial growth factor-A (VEGF) levels (in pg/mL) in serum samples taken from severe and non severe hemorrhagic fever with renal syndrome (HFRS) cases grouped according to the day after the onset of illness: Group A: 1st week, B: 2nd week, C: 3rd week, D: 4th week, E: >4 weeks.

Group (n)	Severe			Non severe			p-value
	N	Range	Mean (SD)	N	Range	Mean (SD)
A (24)	11	0.00–607.23	267.16 (201.11)	13	0.00–942.44	391.06 (303.67)	0.338
B (43)	22	499.53–2742.00	1159.64 (582.47)	21	1.07–1378.00	514.89 (383.59)	<0.001
C (23)	10	28.76–1850.30	977.37 (528.65)	13	156.46–927.23	508.74 (280.28)	0.026
D (6)	3	107.20–1660.00	901.73 (777.03)	3	242.44–854.00	537.48 (306.34)	0.513
E (6)	5	90.30–1742.00	504.07 (694.68)	1	382.00	382.00	0.380
Total (102)	51	0.00–2742.00	851.96 (629.23)	51	0.00–1378.00	480.48 (326.75)	0.003