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. Author manuscript; available in PMC: 2021 Feb 1.
Published in final edited form as: Eur Child Adolesc Psychiatry. 2019 May 20;29(2):205–216. doi: 10.1007/s00787-019-01346-0

Table 1.

Means and Standard Deviations (SD) of ADHD Symptoms by Sex and Time

Time 1 2 3
Mean SD Mean SD Mean SD
Inattention
 Males 2.63a 2.44 2.49 2.31 2.74a 2.36
 Females 2.34 2.21 2.29 2.26 2.40 2.21
 Overall 2.48 2.33 2.39 2.28 2.57 2.29
Hyperacti vity/Impul si vity
 Males 2.61a 2.44 2.18 2.09 2.39a 2.28
 Females 2.21 2.18 2.10 2.10 2.02 2.16
 Overall 2.40b 2.32 2.14 2.10 2.21 2.22
a

Significant mean difference between males and females at each time for χ2 test with 1 degree of freedom.

b

Significant mean difference between time 1 and time 2 for χ2 test with 1 degree of freedom.