Table 1

Study characteristics (n=79)

Number of studies
Quantitative (n=5)Qualitative and other (n=74)
Study type
 Quantitative5
 Qualitative52
 Other*22
Year of publication
 2000–200407
 2005–2009010
 2010–2014135
 2015–2018422
WHO regions
 AFR017
 AMR011
 EMR05
 EUR05
 SEAR010
 WPR06
 Multiregional05
 Global515
Organisations†
Public sector
 Bilateral GOs531
 Multilateral GOs524
 Bilateral DFIs00
 Multilateral DFIs54
Private sector
 Corporations and SME06
 Foundations514
 Individuals00
Third sector
 Non-governmental organisations533
 Professional associations02
 Research centres05
Multisector partnerships
 Global health initiatives58
  • *Personal communications, commentaries, letters and editorials.

  • †Studies include one or more organisations.

  • AFR, African region; AMR, region of the Americas;DFIs, development financial institutions; EMR, Eastern Mediterranean region; EUR, European region;GO, governmental organisation; SEAR, South-East Asia region;SME, small and medium enterprises; WPR, Western Pacific region.