Table 3. Cochrane Risk of Bias Tool16.
Article |
Selection Bias |
Performance Bias |
Detection Bias |
Attrition Bias |
Reporting Bias |
Other Bias |
Total |
|
---|---|---|---|---|---|---|---|---|
Random Sequence Generation |
Allocation Concealment |
Blinding of Participants and Personnel |
Blinding of Outcome Assessment |
Incomplete Outcome Data |
Selective Reporting |
Anything Else, Ideally Prespecified |
Low on Risk of Bias |
|
Andersson (1992)9 |
Low |
Unclear |
High |
High |
Low |
Low |
Low |
5/7 |
Raudaskoski (1995)10 |
Low |
Low |
High |
Low |
Low |
Low |
Low |
6/7 |
Antoniou (1997)11 |
Low |
Unclear |
High |
Low |
Low |
Low |
Low |
6/7 |
Suvanto-Luukkonen (1998)12 |
High |
Unclear |
High |
Low |
Low |
Low |
Low |
5/7 |
Wollter-Svensson (2001)13 |
Low |
Low |
High |
Low |
Low |
Low |
Low |
6/7 |
Raudaskoski (2002)14 |
Low |
Low |
Low |
Unclear |
High |
Low |
Low |
6/7 |
Boon (2003)15 |
Low |
Low |
Low |
Low |
Unclear |
Low |
Low |
7/7 |
Wildemeersch (2005)16 |
High |
High |
High |
High |
Low |
Low |
High |
2/7 |
Wildemeersch (2007)17 |
High |
High |
High |
High |
Low |
Low |
High |
2/7 |
Hampton (2005)18 |
High |
High |
High |
High |
Low |
Low |
Low |
3/7 |
Varila (2001)19 |
High |
High |
High |
High |
Low |
Low |
Low |
3/7 |