Table 2.

Quality assessment of MIH prevalence studies according to the JBI criteria.

Country	Study	Sample frame	Sample design	Sample size	Study subjects and setting	Sample coverage	Assessment tool	Standardization and reliability	Statistical analysis	Response rate	Total # of yes
Egypt	Saber et al. (2018)21	Yes	No	UC	Yes	No	Yes	Yes	Yes	UC	5
	Saber et al. (2018)22	Yes	No	UC	Yes	No	Yes	Yes	Yes	UC	5
	Abo Elsoud and Mahfouz (2019)39	Yes	No	Yes	UC	Yes	Yes	Yes	UC	UC	5
	Osman et al. (2020)24	UC	No	Yes	UC	No	Yes	Yes	Yes	UC	4
Iran	Ahmadi et al. (2012)40	Yes	No	UC	UC	Yes	Yes	Yes	Yes	Yes	6
	Ghanim et al. (2014)41	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	9
	Poureslami et al. (2018)42	Yes	Yes	UC	Yes	Yes	Yes	Yes	Yes	UC	7
	Shojaeepour et al. (2020)43	Yes	Yes	Yes	UC	Yes	Yes	Yes	Yes	Yes	8
Iraq	Ghanim et al. (2013)45	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	9
	Noori and Hussein (2014)29	Yes	Yes	Yes	UC	Yes	Yes	UC	Yes	Yes	7
	Salih and Ofi (2015)30	UC	UC	Yes	UC	UC	Yes	UC	Yes	Yes	4
Jordan	Zawaideh et al. (2011)31	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	9
	Fnaish et al. (2011)27	UC	No	Yes	Yes	No	Yes	Yes	UC	Yes	4
	Hamdan et al. (2020)32	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	9
Lebanon	Elzein et al. (2020)33	Yes	Yes	Yes	Yes	Yes	Yes	Yes	UC	Yes	8
Libya	Fteita et al. (2006)10	Yes	No	No	UC	UC	Yes	Yes	Yes	UC	4
KSA	Allazzam et al. (2014)26	UC	UC	No	Yes	No	Yes	Yes	Yes	Yes	5
	Al-Hammad et al. (2018)23	Yes	Yes	UC	UC	Yes	Yes	Yes	Yes	Yes	7
	Rizk et al. (2018)34	Yes	Yes	UC	UC	UC	Yes	Yes	Yes	Yes	6
Sudan	Abdalla et al. (2021)11	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	9
Tunisia	Sakly et al. (2020)35	Yes	Yes	No	Yes	No	Yes	Yes	Yes	Yes	7
Turkey	Kusku et al. (2008)28	No	No	No	Yes	No	Yes	Yes	Yes	No	4
	Sönmez et al. (2013)36	Yes	Yes	Yes	UC	Yes	Yes	Yes	Yes	Yes	8
	Koruyucu et al. (2018)8	Yes	Yes	Yes	UC	Yes	Yes	Yes	Yes	Yes	8
	Kılınç et al. (2019)25	Yes	No	Yes	Yes	No	Yes	No	Yes	Yes	6
UAE	Hussain et al. (2018)37	Yes	Yes	Yes	UC	Yes	Yes	Yes	Yes	Yes	8
	Ahmad et al. (2019)38	Yes	Yes	UC	UC	Yes	Yes	Yes	Yes	Yes	7

UC (Unclear).