title: Guidance for evidence-informed policies about health systems: assessing how much confidence to place in the research evidence.
abstract: In the third paper in a three-part series on health systems guidance, Simon Lewin and colleagues explore the challenge of assessing how much confidence to place in evidence on health systems interventions.
authors.affiliation: Norwegian Knowledge Centre for the Health Services, Oslo, Norway. simon.lewin@nokc.no
authors.forename: Simon
authors.initials: S
authors.lastname: Lewin
authors.forename: Xavier
authors.initials: X
authors.lastname: Bosch-Capblanch
authors.forename: Sandy
authors.initials: S
authors.lastname: Oliver
authors.forename: Elie A
authors.initials: EA
authors.lastname: Akl
authors.forename: Gunn E
authors.initials: GE
authors.lastname: Vist
authors.forename: John N
authors.initials: JN
authors.lastname: Lavis
authors.forename: Davina
authors.initials: D
authors.lastname: Ghersi
authors.forename: John-Arne
authors.initials: JA
authors.lastname: Røttingen
authors.forename: Peter
authors.initials: P
authors.lastname: Steinmann
authors.forename: Metin
authors.initials: M
authors.lastname: Gulmezoglu
authors.forename: Peter
authors.initials: P
authors.lastname: Tugwell
authors.forename: Fadi
authors.initials: F
authors.lastname: El-Jardali
authors.forename: Andy
authors.initials: A
authors.lastname: Haines
mesh_terms: D006291:Health Policy