Figures & data
Figure 1. PRISMA flow chart template adapted from Moher D, Liberati A, Tetzlaff J, Altman DG, The PRISMA Group (2009). Preferred reporting items for systematic reviews and meta-analyses: The PRISMA statement. PLoS Med 6(7): e1000097
![Figure 1. PRISMA flow chart template adapted from Moher D, Liberati A, Tetzlaff J, Altman DG, The PRISMA Group (2009). Preferred reporting items for systematic reviews and meta-analyses: The PRISMA statement. PLoS Med 6(7): e1000097](/cms/asset/72d45d2c-875f-4e9e-b607-00c3e9feb36c/hicp_a_1915654_f0001_oc.jpg)
Table 1. Search results grouped by intervention model description
Table 2. Summary of reported outcomes