Study | Randomised trial | Acceptable randomisation /control procedure | <20% dropout | Insignificant difference in dropout between groups | Good fidelity | Definition of counterfactual treatment is clear | Valid and reliable measurement of outcomes | Power calculations | Protocol (statistical strategy outlined a priori) | Recognised statistical analyses | Summarised score |
Bakker et al 25 | + | + | + | + | 0 | + | + | + | + | + | 9 |
Beck et al 46 | + | + | + | + | + | + | + | 0 | 0 | + | 8 |
Blonk et al 29 | + | + | + | + | 0 | + | + | 0 | + | + | 8 |
Brouwers et al 23 | + | + | + | + | + | + | + | + | 0 | + | 9 |
De Vente et al 44 | + | + | + | 0 | + | + | + | 0 | + | + | 8 |
de Weerd et al 47 | + | + | 0 | + | + | + | + | + | 0 | 0 | 7 |
Fleten et al 18 | + | + | + | + | + | + | + | 0 | + | + | 9 |
Folke et al 45 | + | 0 | + | + | + | + | + | + | 0 | + | 8 |
Hees et al 24 | + | + | + | + | + | + | + | + | + | + | 10 |
Hellström et al 22 | + | + | + | + | + | + | + | + | + | + | 10 |
Kröger et al 34 | + | 0 | + | + | + | + | + | 0 | 0 | + | 7 |
Lammerts et al 40 | + | + | + | + | 0 | + | + | 0 | + | + | 8 |
Lytsy et al 42 | + | + | + | + | + | + | + | 0 | 0 | + | 8 |
Martin et al 38 39 | + | 0 | + | + | 0 | + | + | 0 | 0 | + | 6 |
Momsen et al 41 | + | + | 0 | + | + | + | + | 0 | + | + | 8 |
Netterstrøm et al 32 | + | + | + | + | + | + | + | 0 | 0 | 0 | 7 |
Netterstrøm et al 33 | + | 0 | + | + | + | + | + | 0 | 0 | + | 7 |
Noordik et al 48 | + | + | 0 | + | 0 | + | + | + | + | + | 8 |
Nystuen et al 43 | + | + | 0 | 0 | 0 | + | + | 0 | + | + | 6 |
Rebergen et al 49 | + | + | + | + | + | 0 | + | 0 | + | + | 8 |
Reme et al 20 | + | + | + | + | + | + | + | + | + | + | 10 |
Schene et al 30 | + | + | + | + | + | + | + | 0 | 0 | + | 8 |
Skouen et al 37 | + | + | + | + | 0 | + | + | 0 | 0 | + | 7 |
Stenlund et al 50 | + | + | + | + | + | + | + | + | 0 | 0 | 8 |
van Beurden et al 35 36 | + | 0 | + | + | 0 | + | 0 | 0 | + | + | 6 |
van der Feltz-Cornelis et al 19 | + | + | + | + | 0 | + | + | + | + | + | 9 |
van der Klink et al 28 | + | + | + | + | + | + | + | 0 | 0 | + | 8 |
van Oostrom et al 26 | + | + | + | + | + | + | + | + | + | + | 10 |
Vlasveld et al 27 | + | + | + | + | 0 | + | + | + | + | + | 9 |
Volker et al 21 | + | + | + | + | 0 | + | + | + | + | + | 9 |
Willert et al 31 | + | + | + | + | 0 | + | + | + | 0 | + | 8 |
Eklund et al 8 | 0 | + | + | + | + | + | + | + | 0 | + | 8 |
Grossi et al 53 | 0 | 0 | + | + | 0 | + | + | + | 0 | 0 | 5 |
Karlson et al 55 | 0 | 0 | + | 0 | 0 | + | + | 0 | + | 0 | 4 |
Lagerveld et al 57 | 0 | 0 | + | + | + | + | + | 0 | 0 | 0 | 5 |
Netterstrøm et al 51 | 0 | + | + | + | + | + | + | 0 | + | 0 | 7 |
Schneider et al 59 | 0 | + | + | + | 0 | 0 | + | 0 | 0 | + | 5 |
Suoyrjö et al 54 | 0 | + | + | + | 0 | + | + | 0 | 0 | 0 | 5 |
Wåhlin et al 58 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |