Table 7 Comparison of demographic data and C-QDQ scores between ADHD subgroups and healthy controls. Note: a: [median (P25, P75)]; b: means ± standard deviation; ADHD-I: ADHD-predominantly inattention type; ADHD-C: ADHD-combined type; HCs: healthy controls; ***: p < 0.001

Gender [n (%men)]

51 (43.6%)

49 (53.3%)

41 (44.1%)

0.316

-

Age (years)

26 (22, 31) ^a

26 (23, 30) ^a

25 (24, 26) ^a

0.182

-

Educational (years)

16.42 ± 2.82 ^b

16.25 ± 2.20 ^b

18.08 ± 2.14 ^b

< 0.001***

1, 2 < 3

C-QDQ total scores

30.29 ± 6.52 ^b

33.00 ± 6.15 ^b

20.41 ± 5.42 ^b

< 0.001***

2 > 1 > 3

 Delay aversion

15.86 ± 4.05 ^b

18.49 ± 3.62 ^b

10.97 ± 3.64 ^b

< 0.001***

2 > 1 > 3

 Delay discounting

14.43 ± 3.94 ^b

14.51 ± 3.80 ^b

9.44 ± 2.52 ^b

< 0.001***

1, 2 > 3