Re: Comparative efficacy and acceptability of non-surgical brain stimulation for the acute treatment of major depressive episodes in adults: systematic review and network meta-analysis
Dichotomizing risk of bias was not appropriate
The authors write in their abstract that, "The quality of the evidence was typically of low or unclear risk of bias (94 out of 113 trials, 83%)." It is inappropriate to divide a three-category risk of bias assessment of the primary studies in this way. Studies with unclear risk of bias often have a high risk of bias. Therefore, the proper information is to note the number of studies which are of low risk of bias.
Competing interests: No competing interests