Comparing Digital Cognitive Interventions to Active Controls and Usual Care for Mild Cognitive Impairment and Dementia: A Systematic Review and Meta-Analysis.

In the usual care group, the pooled analysis indicated a significant trend favoring the experimental group (SMD = −0.58, 95% CI [−1.13, −0.03], I 2 = 90%, τ 2 = 0.55), although the quality of evidence was rated as very low owing to serious inconsistency and imprecision ( Figure 3 B).

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