Intervention integrity and consistency ratings for included studies (n=39)
| Author and year | Integrity | Consistency | Contamination | Unit of allocation | Unit of analysis | Intention To Treat (ITT) |
| RCTs | ||||||
| Blank and Smithkline | 1 | 3 | 6 | Individual | Individual | 2 |
| Boden-Albala et al,34 2015 | 1 | 3 | 6 | Individual | Individual | 1 |
| Dracup et al,15 2009 | 4 | 3 | 6 | Individual | Individual | 2 |
| Luepker et al,31 2000 | 4 | 3 | 6 | Community | Both | NA |
| Meischke et al,32 1997 | 4 | 2 | 6 | Individual | Individual | 3 |
| Mooney et al,10 2014 | 4 | 1 | 6 | Individual | Individual | 1 |
| Müller-Nordhorn et al,33 2009 | 4 | 3 | 6 | Community | Community | NA |
| Controlled before and after studies | ||||||
| Morgenstern et al,35 2002 | 4 | 3 | 6 | Community | Individual | 1 |
| Rowley et al,36 1982 | 4 | 3 | 6 | Practice | Practice | 3 |
| Xin-gang et al,37 2013 | 4 | 3 | 6 | Community | Individual | 3 |
| Uncontrolled before and after studies/ITS | ||||||
| Addo et al,66 2012 | 4 | 3 | 6 | Community | Individual | NA |
| Alberts et al,59 1992 | 4 | 3 | 6 | Individual | Individual | NA |
| Barsan et al,60 1994 | 4 | 3 | 6 | Community | Individual | NA |
| Bett et al,45 2005 | 4 | 3 | 6 | Community | Individual | NA |
| Bett et al,46 1993 | 3 | 3 | 6 | Community | Individual | NA |
| Black and Brown,62 1973 | 4 | 3 | 6 | Community | Individual | NA |
| Breuer et al,54 1999 | 4 | 3 | 6 | Community | Individual | NA |
| Camerlingo et al,64 2014 | 4 | 2 | 6 | Community | Individual | NA |
| Diercks et al,56 2010 | 4 | 3 | 6 | Community | Individual | NA |
| Gaspoz et al,48 1996 | 4 | 3 | 6 | Community | Individual | NA |
| Herlitz et al,55 1992 | 2 | 3 | 6 | Community | Individual | NA |
| Ho et al,1 1989 | 4 | 3 | 6 | Community | Individual | NA |
| Hodgson et al,38 2007 | 4 | 3 | 6 | Community | Individual | NA |
| Luiz et al,49 2001 | 4 | 3 | 6 | Community | Individual | NA |
| Maeso-Madronero et al,52 2000 | 4 | 3 | 6 | Community | Individual | 1 |
| Mellon et al,40 2014 | 4 | 2 | 6 | Community | Individual | NA |
| Mitic and Perkins,57 1984 | 4 | 3 | 6 | Community | Individual | NA |
| Moses et al,67 1991 | 4 | 3 | 6 | Community | Individual | NA |
| Naegeli et al,63 2011 | 4 | 3 | 6 | Community | Individual | NA |
| Nishijima et al,65 2016 | 4 | 2 | 6 | Community | Individual | NA |
| Rau et al,53 2005 | 4 | 3 | 6 | Community | Individual | 1 |
| Rustige et al,41 1992 | 4 | 3 | 6 | Community | Individual | NA |
| Thomassen et al,50 1999 | 4 | 3 | 6 | Community | Individual | NA |
| Waters et al,47 1983 | 4 | 3 | 6 | Community | Individual | NA |
| Wolters et al,51 2015 | 4 | 3 | 6 | Community | Individual | NA |
| Wright et al,58 2001 | 4 | 3 | 6 | Community | Individual | NA |
| Post-test only studies (n=2) | ||||||
| Bray et al,44 2015 | 2 | 2 | 6 | Community | Individual | NA |
| Månsson et al,43 1999 | 4 | 3 | 6 | Community | Individual | NA |
| Case–control study (n=1) | ||||||
| Tummala and Farshid,42 2015 | 2 | 2 | 6 | Community | Individual | NA |
ITS, interrupted time series; ITT, intention to treat; NA, not available.