Table 5. Between-group differences and effect sizes after the intervention (T1).

	Intervention versus control				Frequent users versus controls
Outcome measure	Meandiff	95% CI	P-valuea	ESb	Mean diff	95% CI	P-valuea	ESb
Primary
20mSRT	0.14	0.01;0.28	0.04	0.39	0.21	0.01;0.41	0.04	0.55
Secondary
KIDSCREEN-10	5.22	0.90;9.53	0.02	0.56	4.21	−0.74;9.15	0.09	0.45
Body image	1.29	−0.26;2.83	0.10	0.40	1.68	0.10;3.26	0.04	0.56
Relative aut.index	0.23	−1.92;2.39	0.83	0.05	0.51	−1.86;2.88	0.67	0.11
BMI	−0.39	−0.74; −0.05	0.03	−0.50	−0.52	−0.89; −0.16	0.01	−0.70

^a P-values for independent samples t-tests

^bCohen's d