Table 4

Assessment of systematic error/bias risk of clinical trials per topic
SR T DS Selection bias risk Detection/Performance Attrition bias risk
Bias risk
Randomisation and Baseline data comparison Blinding/ Loss-to- follow -up
Allocation concealment between groups Masking
A B C D 0 A B C 0 A B C 0 A B 0
Mickenautsch and Yengopal, 2011 [3] [a] 30 30 9 21 30 18 7 5
Mickenautsch and Yengopal, 2011 [4] [a] 12 12 2 10 12 10 2
[b] 5 5 1 4 5 3 2
Mickenautsch et al., 2010 [5] [a] 1 1 1 1 1
[b] 12 12 9 3 12 3 9
[c] 6 6 6 6 6
[d] 6 1 5 1 5 6 6
[e] 2 1 1 1 1 2 2
Mickenautsch and Yengopal, 2010 [6] [b] 12 12 12 12 12
Yengopal and Mickenautsch, 2011 [7] [a] 4 4 4 4 4
[b] 2 2 2 2 1 1
[c] 5 5 5 5 5
[d] 4 4 4 4 4
[e] 9 9 9 9 6 3
Yengopal and Mickenautsch, 2010 [8] [1] 19 19 19 19 19
Mickenautsch et al., 2010 [9] [a] 8 8 8 8 1 7
[b] 14 14 14 14 14
Mickenautsch et al., 2010 [10] [a] 18 18 18 18 18

SR = Systematic review; T = Topic; DS = Total number of datasets per topic.

Adequate = Score A; Inadequate = Scores B, C, 0.

Mickenautsch

Mickenautsch BMC Oral Health 2012 12:18   doi:10.1186/1472-6831-12-18

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