Table 2.

Documents and Papers Included in the Document Review

	Author (date)	Study/report title	Study/report objective
Peer-reviewed papers
1	Abuya et al.10	Historical Account of the National Health Insurance Formulation in Kenya: Experiences from the Past Decade	To trace the historical process of the development of the National Health Insurance Scheme proposal and illuminates factors that led to the failure of implementing the policy
2	Barasa et al.11	Extending Voluntary Health Insurance to the Informal Sector: Experiences and Expectations of the Informal Sector in Kenya	To examine the experiences and perceptions of informal sector individuals regarding membership with the NHIF
3	Kazungu and Barasa9	Examining Levels, Distribution and Correlates of Health Insurance Coverage in Kenya	To examine the levels, inequalities, and factors associated with health insurance coverage in Kenya
4	Munge et al.7	A Critical Analysis of Purchasing Arrangements in Kenya: The Case of the National Hospital Insurance Fund	To critically analyse purchasing arrangements in Kenya, using the NHIF as a case study
5	Oketch and Lelengwe12	Analysis of Universal Health Coverage and Equity on Health Care in Kenya	To critically review the various initiatives that the government of Kenya has initiated over the years toward the realization of UHC and how this has impacted health equity
6	Okungu et al.13	Extending Coverage to Informal Sector Populations in Kenya: Design Preferences and Implications for Financing Policy	To document the views of informal sector workers regarding different prepayment mechanisms and critically analyze key design features of a future health system and the policy implications of financing UHC in Kenya
7	Sieverding et al.14	Private Healthcare Provider Experiences with Social Health Insurance Schemes: Findings from a Qualitative Study in Ghana and Kenya	To explore private providers’ perceptions of and experiences with participation in two different social health insurance schemes in sub-Saharan Africa—the National Health Insurance Scheme in Ghana and the NHIF in Kenya
Grey literature
8	Gesellschaft für Internationale Zusammenarbeit (GIZ)15	Willingness and Ability to Pay for the NHIF Premium among the Informal Sector	To examine the willingness and ability to pay the NHIF premium among the informal sector in Kenya
9	IFC8	Strategic Review of the National Hospital Insurance Fund	To carry out a comprehensive strategic review of NHIF and a market assessment of prepaid health schemes/ health maintenance organisations in Kenya
10	IFC16	HISP Process Evaluation Report	To evaluate the implementation process of the HISP pilot
11	IFC17	NHIF–SafeCare Program End Term Evaluation Report	To evaluate the NHIF–SafeCare program
12	Kimani et al.18	Baseline Survey of the Health Insurance Subsidy Programme	To examine the baseline characteristics of HISP beneficiaries in Kenya
13	Mbau et al.19	Strategic Purchasing in Healthcare in Kenya: Examining Purchasing Reforms by the National Hospital Insurance Fund	To examine how recent NHIF reforms have influenced the ability of the NHIF to purchase health care services strategically
14	Mbau et al.20	Examining Multiple Funding Flows to Healthcare Facilities in Kenya	To examine how multiple funding flows to health care facilities have influenced provider behavior in Kenya
15	NHIF21	Civil Servants Scheme Operations Manual	To outline the operational arrangement and implementation plan of the civil servants program
16	NHIF22	Health Insurance Subsidy for the Poor (HISP) Operations Manual	To outline the operational arrangement and implementation plan of the HISP program
17	NHIF23	NHIF Management Report (2013–2014)	To analyze and present the performance of the NHIF for fiscal year 2013–2014
18	NHIF24	NHIF Strategic Plan 2014–2018	To outline strategic objectives of the NHIF over the period 2014–2018
19	NHIF25	NHIF Management Report (2014–2015)	To analyze and present the performance of the NHIF for fiscal year 2014–2015
20	NHIF26	NHIF Informal Sector Strategy	To outline strategic objectives of the NHIF during the period 2016–2018 with regard to expanding membership among the informal sector
21	NHIF 27	NHIF Management Report (2015–2016)	To analyze and present the performance of the NHIF for fiscal year 2015–2016
22	NHIF28	NHIF Management Report (2016–2017)	To analyze and present the performance of the NHIF for fiscal year 2016–2017
23	The World Bank29	Impact Evaluation of the Health Insurance Subsidy Program in Kenya	To examine the effectiveness of the health insurance subsidy program in increasing health care utilization and financial risk protection among the poor in Kenya