Epidemiology of Helicobacter pylori infection among the healthy population in Iran and countries of the Eastern Mediterranean Region: A systematic review of prevalence and risk factors

Table 1 Prevalence of Helicobacter pylori infection in the Iranian population

Ref.	Year	Location	Age group	Number (M/F)	Prevalence	Prevalence (%) (M/F)	Method of detection
Alborzi et al[12]	2005	Shiraz (Southern Iran)	8 mo-15 yr	593 (308/284)	82.0%	81/83	Stool antigen
Nouraie et al[13]	2009	Tehran	18-65 yr	2326 (968/1358)	69.0%	67.6/70.0	ELISA IgG-Ab
Jafarzadeh et al[14]	2005	Rafsanjan (Southeast Iran)	1-15 yr	386 (187/199)	46.6%	51.9/41.7	ELISA IgG-Ab
Jafarzadeh et al[15]	2005	Rafsanjan (Southeast Iran)	20-60 yr	200 (114/86)	67.5%	71.9/61.6	ELISA IgG-Ab
Alizadeh et al[16]	2003	Nahavand (Western Iran)	≥ 6 yr	1518 (653/865)	70.6%	66.6/73.4	ELISA IgG-Ab
Ghasemi Kebria et al[17]	2010	Golestan province (Northeast Iran)	1-83 yr	1028 (489/539)	66.4%	66.3/66.6	ELISA IgG-Ab
Jafar et al[18]	2007	Sanandaj (Western Iran)	4 mo-15 yr	458 (231/227)	64.2%	65/63	Stool antigen
Mikaeli et al[19]	1997	Ardebil and Yazd (Northwest and Central Iran)	< 20 yr	711 (NA)	47.5% (Ardebil)	NA	ELISA IgG-Ab
					30.6% (Yazd)
Mansour-Ghanaei et al[20]	2007	Rasht (Northern Iran)	7-11 yr	961 (475/486)	40.0%	49.7/50.3	Stool antigen
Mahram et al[21]	2004	Zanjan (Western Iran)	7-9 yr	278 (150/128)	52.8%	56.0/50.7	ELISA IgG-Ab

M: Male; F: Female; ELISA: Enzyme- linked immunosorbent assay; Ab: Antibody; NA: Not available.