Table 2 Sample description (mean age, sex distribution and WISC-IV mean scores) of children with pure and comorbid CTD, OCD and ADHD
CTD-only (n = 46) | OCD-only (n = 21) | ADHD-only (n = 45) | CTD+ADHD (n = 35) | CTD+OCD (n = 20) | CTD+OCD+ADHD (n = 14) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | N | % | N | % | N | % | Chi2 | p | ||
Gender Female | 9 | 19.6 | 7 | 33.3 | 6 | 13.3 | 5 | 14.3 | 5 | 25 | 3 | 21.4 | 4.702 | 0.453 | |
Male | 37 | 80.4 | 14 | 66.7 | 39 | 86.7 | 30 | 85.7 | 15 | 75 | 11 | 78.6 | |||
Female:male | 1:4.1 | 1:2 | 1:6.5 | 1:6 | 1:3 | 1:3.7 | |||||||||
M (SD) | M (SD) | M (SD) | M (SD) | M (SD) | M (SD) | ANOVA | P | Bonferroni | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Age | 10.9 (2.7) | 11.6 (2.6) | 9.3 (2.2) | 9.1 (2.6) | 11.7 (2.8) | 10.4 (2.3) | F = 5.662; df1 = 5, df2 = 175 | < 0.001 | ADHD-only, CTD+ADHD < CTD-only, OCD-only, CTD+OCD | ||||||
WISC-IV | M (SD) | M (SD) | M (SD) | M (SD) | M (SD) | M (SD) | ANOVA | P | Bonferroni | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
VCI | 107 (14.3) | 108 (12.5) | 103 (13.1) | 104 (14.9) | 104 (15.4) | 102 (12.9) | F = 0.710; df1 = 5, df2 = 175 | 0.616 | |||||||
PRI | 105 (15.2) | 106 (13.8) | 102 (14.8) | 105 (14.9) | 105 (15.5) | 105 (17.8) | F = 0.336; df1 = 5, df2 = 175 | 0.891 | |||||||
WMI | 102 (11.7) | 100 (13.1) | 96 (11.6) | 102 (14.0) | 106 (12.2) | 100 (12.3) | F = 2.335; df1 = 5, df2 = 175 | 0.044 | ADHD-only < CTD+OCD | ||||||
PSI | 98 (14.2) | 99 (15.0) | 94 (10.9) | 96 (12.9) | 104 (12.5) | 99 (14.7) | F = 1.653; df1 = 5, df2 = 174 | 0.148 | |||||||
FSIQ | 105 (13.8) | 105 (11.1) | 99 (11.9) | 102 (13.8) | 106 (14.2) | 102 (13.2) | F = 1.309; df1 = 5, df2 = 174 | 0.262 | |||||||