Study | Country | Design | Rationale described? | Power calculation presented? | Sample size calculations presented? | Selection criteria described? | Adequate concealment of randomization? | Assessor blinded? | Intention to treat analysis performed? | Quality score | Quality rating |
---|---|---|---|---|---|---|---|---|---|---|---|
Barlow et al.[31] | UK | Parallel | Yes | No | No | Yes | Yes | NR | Yes | 2 | Low |
Glasgow et al.[32] | USA | 3-arm | Yes | Yes | Yes | Yes | Yes | NR | Yes | 2 | Low |
Goeppinger et al.[33] | USA | Parallel | Yes | Yes | Yes | Yes | Yes | NR | NA | 3 | High |
Hibbard et al.[34] | USA | Parallel | No | No | No | Yes | NR | NR | No | 1 | Low |
Huang et al.[35] | Taiwan | 3-arm | Yes | Yes | Yes | Yes | Yes | Yes | No | 4 | High |
Lavery et al.[36] | Ireland | Parallel | Yes | No | No | Yes | Yes | Yes | Yes | 3 | High |
Lorig et al. (2010)[37] | USA | Parallel | No | No | No | Yes | NR | NR | Yes | 2 | Low |
Lorig et al. (2009)[38] | USA | Parallel | Yes | No | No | Yes | NR | NR | Yes | 2 | Low |
Moriyama et al.[39] | Japan | Parallel | Yes | No | No | Yes | NR | NR | No | 3 | High |
Wolever et al.[40] | USA | Parallel | Yes | No | No | Yes | NR | Yes | No | 2 | Low |