Impact of stimulant medication on behaviour and executive functions in children with attention-deficit/hyperactivity disorder

Table 2 Behaviour Assessment System for Children-Second Edition parent symptom reports measured over the three-time points

Variable	BL T-score mean ± SD (n = 37)	BD T-score mean ± SD (n = 30)	BD-BL (P value)	FU T-score mean ± SD (n = 18)	FU-BD (P value)
Externalizing problems	68.95 ± 13.20	54.83 ± 8.42	P < 0.001	63.72 ± 10.26	P = 0.003
Internalizing problems	62.86 ± 15.34	52.53 ± 13.0	P < 0.001	60.89 ± 13.07	P = 0.063
Behaviour symptoms index	72.32 ± 10.20	57.13 ± 7.73	P < 0.001	68.06 ± 9.47	P < 0.001
Adaptive behaviours	33.95 ± 8.92	40.57 ± 9.22	P < 0.001	38.72 ± 8.79	P = 0.124

Mean scores on the Behaviour Assessment System for Children-Second Edition subscales; externalizing problems, internalizing problems, behavioural symptom index and adaptive skills, as rated by parents at three-time points: (1) Baseline; (2) Best-dose; and (3) Follow-up. BL: Baseline; BD: Best-dose; FU: Follow-up.