Table 1.
Study | Randomisation | Concealment | Baseline comparab. | Inclusion criteria | Blind evaluators | Blind care providers | Blind patients | Reporting of results | Intent‐to‐treat |
Ahuja 1985 | 1 | ? | ? | 0 | 1 | 1 | 1 | 1 | ? |
Al‐Qassab 1993 | 1 | ? | ? | 0 | 1 | 1 | 1 | 1 | ? |
Albers 1989 | 1 | ? | ? | 1 | 0 | 0 | 0 | 1 | 0 |
Andresson 1981 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Baldrati 1983 | 1 | ? | ? | ? | 1 | 1 | 1 | 0 | 0 |
Behan 1980 | ? | ? | ? | 0 | 1 | 1 | 1 | 0 | 0 |
Bonuso 1998 | 1 | ? | ? | 0 | ? | ? | ? | 0 | 0 |
Bordini 1997 | 1 | ? | ? | 1 | 1 | 1 | 1 | 0 | 0 |
Borgesen 1974 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Dahlöf 1987 | 1 | ? | ? | 1 | 1 | 1 | 1 | 0 | 1 |
Diamond 1976 | 1 | ? | ? | 0 | 1 | 1 | 1 | 0 | 0 |
Diamond 1982 | 1 | ? | ? | 0 | 1 | 1 | 1 | 0 | 0 |
Diener 1996 | 1 | ? | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Diener 2002 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Diener 1989 | 1 | ? | 1 | 1 | 1 | 1 | 1 | 1 | ? |
Formisano 1991 | 1 | ? | 0 | 0 | 0 | 0 | 1 | 1 | 0 |
Forssman 1976 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Gawel 1991 | ? | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
Gerber 1995 | 1 | ? | 1 | 1 | 1 | 1 | 1 | 1 | 0 |
Grotemeyer 1987 | ? | ? | ? | ? | 1 | 1 | 1 | 1 | 0 |
Hedman 1986 | 1 | ? | ? | 0 | 1 | 1 | 1 | 1 | 0 |
Holdorff 1977 | 1 | ? | 0 | 1 | 1 | 1 | 1 | 0 | 0 |
Johnson 1986 | 1 | 1 | ? | ? | 1 | 1 | 1 | 1 | 0 |
Kangasniemi 1983 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Kangasniemi 1984 | 1 | ? | 0 | 1 | 1 | 1 | 1 | 1 | 0 |
Kaniecki 1997 | 1 | ? | ? | 1 | ? | ? | ? | 0 | 0 |
Kass 1980 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Kjaesgard‐Rasmussen 1994 | 1 | ? | 1 | 1 | 1 | 1 | 1 | 1 | ? |
Klapper 1994 | 1 | ? | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Kuritzky 1987 | 1 | ? | ? | ? | ? | ? | ? | 0 | 0 |
Lücking 1988a | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Lücking 1998b | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Ludin 1989 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Maissen 1985 | ? | ? | 0 | 1 | 1 | 1 | 1 | 1 | ? |
Malvea 1973 | 1 | ? | ? | 1 | 1 | 1 | 1 | 0 | 0 |
Mathew 1981‐Study 1 | 1 | ? | ? | 0 | 0 | 0 | 0 | 1 | 0 |
Mathew 1981‐Study 2 | 1 | ? | ? | 0 | 0 | 0 | 0 | 1 | 0 |
Micieli 2001 | 1 | ? | 0 | 1 | 1 | 1 | 1 | 1 | 0 |
Mikkelsen 1986 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Nadelmann 1986 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Nicolodi 1997 | 1 | ? | ? | ? | 1 | 1 | 1 | 1 | ? |
Olerud 1986 | 1 | ? | 0 | 0 | 1 | 1 | 1 | 1 | 0 |
Olsson 1984 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Palferman 1983 | 1 | ? | ? | 1 | 1 | 1 | 1 | 0 | 0 |
Pita 1977 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Pradalier 1989 | 1 | ? | 1 | 1 | 1 | 1 | 1 | 1 | ? |
Ryan 1984 | 1 | ? | ? | 1 | 1 | 1 | 1 | 0 | 0 |
Sargent 1985 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Scholz 1987 | 1 | ? | ? | ? | 0 | 1 | 1 | 1 | 0 |
Shimell 1990 | 1 | ? | 1 | 1 | 1 | 1 | 1 | 0 | ? |
Solomon 1986 | ? | ? | ? | 0 | 1 | 1 | 1 | 0 | 0 |
Stensrud 1976 | 1 | ? | ? | 0 | 1 | 1 | 1 | 1 | 0 |
Stensrud 1980 | 1 | ? | ? | 0 | 1 | 1 | 1 | 0 | 0 |
Sudilovski 1987 | 1 | ? | 1 | 0 | 1 | 1 | 1 | 1 | 0 |
Tfelt‐Hasen 1984 | 1 | ? | ? | 1 | 1 | 1 | 1 | 1 | 0 |
Weber 1972 | 1 | ? | ? | ? | 1 | 1 | 1 | 1 | 0 |
Wideroe 1976 | 1 | ? | ? | 0 | 1 | 1 | 1 | 1 | 0 |
Ziegler 1987 | 1 | ? | ? | 1 | 1 | 1 | 1 | 0 | 0 |