2. Methodological quality of included studies.
Author and year | Sample size adequacy | Concealment | Treatment description | Representative sample | Diagnostic criteria | Withdrawals | Outcome measures | Total |
Barge‐Schaapveld 2002 | 2 | 2 | 2 | 1 | 2 | 1 | 2 | 31 |
Blashki 1971 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 30 |
Brink 1984 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 26 |
Doogan 1994 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 30 |
Feighner 1979 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 27 |
Hollyman 1988 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 38 |
Lecrubier 1997 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 32 |
Lepola 2001 | 2 | 0 | 2 | 1 | 2 | 2 | 2 | 28 |
Malt 1999 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 34 |
Mynors‐wallis 1995 | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 34 |
Philipp 1999 | 2 | 0 | 2 | 2 | 2 | 2 | 2 | 37 |
Thompson 1989 | 0 | 0 | 2 | 2 | 2 | 1 | 2 | 26 |
Thomson 1982 | 0 | 0 | 2 | 2 | 1 | 2 | 2 | 25 |
Wade 2002 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 32 |