The Cochrane Handbook 33 provides the following cutoff points for interpreting the I 2 : A percentage between 0 and 40% suggests that the difference may not be significant, a percentage between 30% and 60% suggests that the difference may be moderate, a percentage between 50% and 90% suggests that the difference may be substantial, and a percentage between 75% and 100% suggests that the difference may be significant.
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Efficacy and results of virtual nursing intervention for cancer patients: A systematic review and meta-analysis.
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