Table 1.

Characteristics of the included studies[5,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27]

Study	Year	Country	Patients	n	Parvovirus B19 detection	Incidence of parvovirus B19 infection (%)	Incidence of anemia among parvovirus B19 infection (%)
Bertoni et al.[10]	1997	Italy	Deceased kidney transplant patients with severe hypoproliferative anemia	9	PCR	Severe anemia - 4/9 (44.4)	NR
Gallinella et al.[11]	1999	Italy	Kidney transplant patients within 6 months after transplant	59	PCR	0/59 (0)	NR
Zolnourian et al.[12]	2000	Ireland	Kidney transplant patients within 4 months after transplant	110	PCR	2/110 (1.8)	0/2 (0)
Malyszko et al.[13]	2002	Poland	Kidney transplant patients	47	IgM, IgG	IgM - 11/47 (23.4) IgG - 31/47 (66)	NR
Cavallo et al.[14]	2003	Italy	Kidney transplant patients	48 with anemia 21 without anemia	PCR	With anemia - 11/48 (22.9) Without anemia - 1/21 (4.8)	NR
Ki et al.[15]	2005	South Korea	Kidney transplant patients	167	PCR	52/167 (31.1)	Acute rejection - 7/52 (13) Graft failure - 1/52 (2) Pure red cell aplasia - 2/52 (4)
Eid et al.[16]	2006	US	Kidney transplant patients within 1 year after transplant	9	PCR	0/9 (0)	NR
Egbuna et al.[17]	2006	US	Kidney transplant patients with anemia and erythropoietin resistance	8	PCR, IgM, IgG	PCR - 3/8 (37.5) IgM - 1/8 (12.5) IgG - 2/8 (25)	NR
Ardalan et al.[18]	2008	Iran	Kidney transplant patients	100	PCR, IgM, IgG	PCR - 6/100 (6) IgM - 6/100 (6)	NR
Park et al.[19]	2009	South Korea	Kidney transplant patients	143	PCR	Positive B19 PCR - 84/143 (58.7) High titer >106 copies/5 µL - 13/143 (9.1)	Persistent severe anemia Positive B19 PCR - 13/84 (15) High titer - 11/13 (85) Anemia at 6 months Positive B19 PCR - 13/84 (15) High titer - 3/13 (23) Anemia at 12 months Positive B19 PCR - 9/84 (11) High titer - 1/13 (8)
Čapenko et al.[20]	2012	Latvia	Deceased kidney transplant patients	63 (38 with anemia, 25 without anemia)	PCR and IgM	All - 12/63 (19) With anemia - 12/38 (31.6) Without anemia - 0/25 (0)	Anemia - 12/12 (100) EPO-resistant severe anemia - 7/12 (58)
Carraturo et al.[21]	2012	Italy	Kidney transplant patients	64 (14 with anemia, 50 without anemia)	PCR	All - 2/64 (3) With anemia - 0/14 (0) Without anemia - 2/50 (4)	0/2 (0)
Plentz et al.[5]	2013	Germany	Kidney transplant patients within 6 months after transplant	147	PCR	2/147 (1.4)	NR
Porignaux et al.[22]	2013	France	Kidney transplant patients within 1 year after transplant	60	PCR	6/60 (10)	NR
Khameneh et al.[23]	2014	Iran	Kidney transplant patients with anemia	91	IgG	63/91 (69.2)	Anemia - 63/63 (100) Severe anemia - 47/63 (75)
Pambrun et al.[24]	2014	France	Kidney transplant patients undergoing bone marrow aspiration for cytopenia	72	PCR	Bone marrow - 11/72 (15.3) Blood - 4/72 (5.5)	NR
Krishnan et al.[25]	2015	USA	Kidney transplant patients	144	PCR or IgM	3/144 (2.1)	3/3 (100)
Baek et al.[26]	2017	South Korea	Kidney transplant patients	602	PCR	39/602 (6.5)	Severe anemia (Hb <7) - 27/39 (69)
Xiao et al.[27]	2013	China	Living related kidney transplant patients	144	PCR	27/144 (18.8)	PRCA - 2/27 (7.4)

EPO: Erythropoietin, IgG: Immunoglobulin G, NR: Not reported, IgM: Immunoglobulin M, PCR: Polymerase chain reaction, PRCA: Pure red cell aplasia, Hb: Hemoglobin