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Table 5 Summary of Cochrane Risk of Bias for Randomized Controlled Trials [19] (n = 30)

From: A systematic review of non-pharmacological interventions to improve nighttime sleep among residents of long-term care settings

  Low Risk High Risk Unclear Not Applicable
Random sequence generation 11 4 15 0
Allocation concealment 11 4 15 0
Blinding of participants and personnel 8 9 13 0
Blinding of outcome assessment 21 2 7 0
Incomplete outcome data (2–6 weeks) 19 5 6 0
Incomplete outcome data (> 6 weeks) 7 0 1 22
Selective reporting 28 0 2 0