Comparison 2.

Attention training versus control ‐ impact on global measures of attention deficits at follow‐up  

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Subjective measures at follow‐up	2	99	Std. Mean Difference (IV, Fixed, 95% CI)	0.16 [‐0.23, 0.56]