Appendix 2. The systematic review search strategies .

	PUBMED SEARCH**
Step 1	((((((((capitation adjustment[Title/Abstract]) OR capitation adjustment[MeSH Terms])) OR (("per capita adjustment"[Title/Abstract]) OR "per capita adjustment"[MeSH Terms])) OR (("capitation fee adjustment"[Title/Abstract]) OR "capitation fee adjustment “Mesh Terms]))) OR ((((("adjustment per capita"[Title/Abstract]) OR "adjustment per capita"[MeSH Terms])) OR ((adjustment capitation[Title/Abstract]) OR adjustment capitation[MeSH Terms])) OR (("adjustment capitation fee"[Title/Abstract]) OR "adjustment capitation fee"[MeSH Terms])))) AND ((((risk adjustment[Title/Abstract]) OR risk adjustment[MeSH Terms]) OR risk factor[Title/Abstract]) OR risk factor[MeSH Terms])
	SCOPUS SEARCH**
Step 2	TITLE-ABS(risk adjustment) OR TITLE-ABS(risk factor)AND TITLE-ABS(capitation adjustment ) OR TITLE-ABS("per capita adjustment") OR TITLE-ABS("capitation fee adjustment") OR TITLE-ABS(adjustment capitation ) OR TITLE-ABS("adjustment per capita") OR TITLE-ABS( "adjustment capitation fee")
	*WEB OF SCIENCE SEARCH*
Step 3	(TOPIC: (((((capitation adjustment OR "capitation fee adjustment") OR "per capita adjustment") OR adjustment capitation) OR "adjustment per capita") OR "adjustment capitation fee") AND TOPIC: (“risk adjustment” OR “risk factor”)) [185 results]
	*PROQUEST*
Step 4	all(capitation adjustment OR "per capita adjustment" OR "capitation fee adjustment" OR adjustment capitation OR "adjustment per capita" OR "adjustment capitation fee") AND all(risk adjustment OR risk factor