Table 1.
Descriptive statistics for demographic and clinical variables between typically developing (TD), conduct problems and low callous‐unemotional (CU) traits (CP‐only), and conduct problems and high CU traits (CP + CU) groups
| TD (n = 28) | CP‐only (n = 47) | CP + CU (n = 25) | |
|---|---|---|---|
| Demographic | |||
| Child age (months) | 48.68 (7.76)a | 48.51 (7.98)a | 48.44 (8.23)a |
| Sex (% boys) | 42.90a | 70.20b | 76.00b |
| Race/ethnicity (% Caucasian) | 78.60a | 48.90b | 52.00b |
| Clinical characteristics | |||
| Conduct problems (ECBI intensity) | 102.42 (15.31)a | 161.46 (18.22)b | 180.77 (18.55)c |
| CU traits (ICU total) | 16.32 (4.16)a | 23.22 (5.86)b | 37.17 (4.83)c |
| Aggression (CBCL aggressive behavior) | 8.26 (4.22)a | 22.19 (6.68)b | 30.17 (3.96)c |
Data are presented as M (SD) or percentage. Values with a different subscript letter row‐wise denote groups that differ significantly from one another, p < .05. CBCL, Child Behavior Checklist; ECBI, Eyberg Child Behavior Inventory; ICU, Inventory of Callous‐Unemotional Traits.