Table 1.

Characteristics of the individual included studies, Ethiopia (n = 14)

Study ID	Design	Area	Year	SS	RR	Main Outcome
Gashaw et al., 2022 [28]	Mixed-CS	AA	2021	634	626	Renewal rate
Hussien et al., 2022 [29]	Cross-sectional	Amhara	2020	1257	1232	Adherence to CBHI Scheme
Ashagrie et al., 2020 [17]	Cross-sectional	Amhara	2020	584	584	Dropout rate
Workneh et al., 2017 [4]	Cross-sectional	Amhara	2015	530	511	Compliance to CBHI
Asmamaw, 2018 [9]	Mixed-CS	Amhara	2017	810	810	CBHI membership renewal
Wassie et al., 2023 [31]	Case-control	Amhara	2018	634	634	Determinants of dropout
Mebratie et al., 2015 [11]	Mixed-CS	National	2012-13	489	483	Dropout rate
Tefera et al., 2021 [27]	Mixed-CS	National	2019	336*	336	CBHI with quality Service
Kebite, 2020 [26]	Cross-sectional	Oromia	2020	624	584	Dropout rate
Mekuria et al., 2020 [33]	Cross-sectional	Oromia	2018	195	195	Dropout rate
Eseta et al., 2020 [16]	Cross-sectional	Oromia	2020	634	617	Dropout rate
Kaso et al., 2022 [32]	Cross-sectional	SNNPR	2021	551	537	Renewal rate
Zepre et al., 2022 [6]	Mixed-CC	SNNPR	2021	525	513	Factors for dropout
Worku, 2019 [30]	Mixed-CC	SNNPR	2018	376	376	Factors for dropout

Note. *=only CBHI enrolled members from the total sample, SNNPR: Southern Nations, Nationalities and Peoples Region; AA = Addis Ababa, RR: Response Rate; SS: Sample Size; CC = Case Control; CS = Cross Sectional