Comparison 2. Computerised cognition‐based training versus inactive control.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Episodic Memory	1		Mean Difference (IV, Random, 95% CI)	Subtotals only
1.1 End of intervention period (6 months)	1	150	Mean Difference (IV, Random, 95% CI)	‐0.90 [‐1.73, ‐0.07]
2 Executive function	2		Std. Mean Difference (Random, 95% CI)	Subtotals only
2.1 End of intervention period (12 weeks to 6 months)	2	292	Std. Mean Difference (Random, 95% CI)	‐0.08 [‐0.31, 0.15]
3 Speed of processing	2		Std. Mean Difference (Random, 95% CI)	Subtotals only
3.1 End of intervention period (12 to 16 weeks)	2	204	Std. Mean Difference (Random, 95% CI)	‐0.28 [‐0.82, 0.26]
4 Working memory	1	60	Mean Difference (IV, Random, 95% CI)	‐0.08 [‐0.43, 0.27]
4.1 End of intervention period (16 weeks)	1	60	Mean Difference (IV, Random, 95% CI)	‐0.08 [‐0.43, 0.27]
5 Verbal fluency	1	150	Mean Difference (IV, Random, 95% CI)	‐0.11 [‐1.58, 1.36]
5.1 End of intervention period (6 months)	1	150	Mean Difference (IV, Random, 95% CI)	‐0.11 [‐1.58, 1.36]