Table 1.

Parvovirus B19 prevalence in β-thalassemia patients

First author	Country	Year	Sample size		Mean age (year)	Sexa		IgG prevalence (%)		IgM prevalence (%)		Genotype	PCR prevalence	Method	Study design	Ref.
			Case	Control		Male	Female	Case	Control	Case	Control
Ghwass	Egypt	2016	55		6.2± 13.25	29	26	18.2		14.5		–	–	ELISA	CS	[19]
Slavov	Brazil	2012	39	100	23.56 (range: 3–45)	59%	41%	35.9	60	–		1A	15.3	sequencing, ELISA, qPCR,	CS	[20]
Kishore	India	2011	90	32	8 (range 2-18)	55	35	81	21	41.1	6.2	–	–	ELISA	CS	[21]
Arabzadeh	Iran	2017	150		30.4	75	75	–		–		I	4	Real-time PCR	CS	[22]

^aSome studies reported the number of male/female and another reported percentage

PCR polymerase chain reaction, CS cross-sectional, ELISA enzyme-linked immunosorbent assay, qPCR quantitative PCR