Not exact matches
We scored risk of bias related to random sequence generation,
allocation concealment, and selective reporting as
unclear for the majority of the studies due to lack of information.Our primary outcome was pain.
In future updates of this review, if appropriate, for our primary outcomes, we will temporarily remove studies at high or
unclear risk of bias (using the
allocation concealment domain) to examine whether this has an impact on results.
In two studies, with respect to sequence generation and
allocation concealment, these domains were either not described or were
unclear (Sellen 2013; Winterburn 2003).
Review authors will independently assess the risk of bias within the published reports of each included study based on the domains typically included within Cochrane reviews (sequence generation,
allocation concealment, blinding of treatment providers and personnel, blinding of outcome assessors, incomplete outcome data, selective reporting bias, and other sources of bias), and assign ratings of high, low or
unclear risk of bias in accordance with plans presented in Appendix 3.