Table 2. Characteristics of Studies and Patients in EMRO Countries.

	Author	Date	Design	Sample Size	ELISA	Mean Age	Male, %	Prevalence, %	95% CI
Iran
	Samar G	1996	C-S a	102	2nd	18.55	95	77.50	69.40–85.60
	Ebrahim-Poor S	1997	C-C a	103	2nd	NR a	NR	76.7	68.54–84.86
	Hashemiyeh M	1997	C-S	44	NR	NR	NR	81.8	70.39–93.20
	Khamisipour GR	1999	C-S	31	NR	16	NR	41.9	24.53–59.27
	Alavian SM	2001	C-S	176	2nd	20.65	86	60.20	52.97–67.43
	Karimi M	2001	C-C	300	2nd	NR	NR	15.65	11.54–19.76
	Karimi M	2002	C-S	310	2nd	17	90	15	11.03–18.97
	Mansour-Ghanaei F	2002	C-S	101	2nd	19.7	99	71.30	62.48–80.12
	Zahedi MJ	2004	C-S	97	NR	21.8	87	44.30	34.41–54.18
	Ziaee M	2004	C-S	80	2nd	23	94	55	40.09–65.90
	Sharifi-Mood B	2006	C-S	74	NR	13	84	32.00	21.37–42.63
	Mohammad-Alizadeh AH	2006	C-S	66	3rd	24.6	83	59.10	47.23–70.96
	Torabi SE	2006	C-S	162	NR	18.5	89	51.20	41.98–60.41
	Javadzadeh-Shahshahani H	2006	C-S	74	3rd	22.5	93	48.60	37.21–59.98
	Sharifi-Mood B	2007	C-S	81	2nd	NR	NR	29.60	19.66–39.54
	Samimi-Rad K	2007	C-S	76	3rd	20.1	87	43.40	32.26–54.54
	Mojtabavi-Naini M	2007	C-S	553	2nd	23.4	84	22.60	19.11–26.09
	Mahdaviani FS	2008	C-S	68	3rd	20.3	85	36.7	25.24–48.15
	Mobini GR	2009	C-S	77	3rd	21.9	95	53.20	42.05–64.32
	Hedayat B	2009	C-S	30	3rd	NR	NR	13.30	1.15–25.45
	Kalantari H	2011	C-S	615	3rd	27.1	83	80.50	77.31–83.63
Iraq
	Al-Kubaisy WA	2006	C-S	47	3rd	NR	NR	66.00	52.46–79.54
	Abdul-Karim ET	2011	C-S	243	NR	14.3	NR	40.30	34.13–46.47
Pakistan
	Raihan S	2010	C-C	408	3rd	17	81	1.40	0.26–2.54
	Borhany M	2011	C-C	173	3rd	NR	100	51.4	43.95–58.85
	Naumaan M	2006	C-S	100	2nd & 3rd	NR	NR	56.00	46.27–65.73
	Asif N	2009	C-S	161	NR	NR	NR	36.00	28.59–43.41
Saudi Arabia
	Bahakim H	1991	C-C	28	NR	NR	NR	78.60	63.41–93.79
Tunisia
	Langar. H	2005	C-S	70	NR	19	100	55.70	44.06–67.34
	Djebbi A	2008	C-S	95	4th	19	100	55.70	45.71–65.69

^a Abbreviations: C-S, cross-sectional; C-C, case-control; NR, non-Reported; CI, confidence interval