266 Appendices Study Domain-level risk of bias Randomization process Effect of assignment to intervention Missing outcome data Measurement of the outcome Selection of the reported result Overall risk of bias Sheridan et al. (2015) 1 1 3 1 2 high Simpson et al. (2014) 1 2 2 2 2 high Sledge et al. (2011) 1 2 1 1 3 high Stahler et al. (2007) 2 3 3 3 2 high Terzian et al. (2013) 1 3 1 2 3 high van Wel et al. (2013) 3 3 2 2 2 high Villemoes et al. (2018) 3 1 1 1 2 high Watson et al. (2017) 1 2 1 2 2 some concerns
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