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. 2019 Aug 18;9(8):e027062. doi: 10.1136/bmjopen-2018-027062

Table 2.

Results of meta-analysis of computerised cognitive training (CCT) on cognitive domains

Analysis of CCT	No of studies	N Tx*/control	Pooled effect size g (95% CI)	Overall effect: Z (p value)	Heterogeneity: I² % (p value)
Global cognition	11	258/245	0.23 (0.03 to 0.44)	z=2.22, p=0.03	6% p=0.39
Memory	13	245/232	0.30 (0.11 to 0.50)	z=3.03, p=0.002	46% p=0.04
Working memory	5	82/83	0.39 (0.12 to 0.66)	z=2.85, p=0.004	0% p=0.81
Executive function	11	171/182	0.20 (−0.03 to 0.43)	z=1.74, p=0.08	51% p=0.03

*Tx=training group.