Table 2. Descriptives of the three CP trajectory classes.
| Class | n | Gender,% male | IQ, mean (s.d.) | SES, mean (s.d.) | Wave | Age, mean (s.d.) | sMRI, n |
|---|---|---|---|---|---|---|---|
| Intermediate CP | 37 | 59.5 | 101.0a (8.6) | 54.4 (19.2) | T1 | 12.8 (0.4) | 33 |
| T2 | 16.7 (0.5) | 29 | |||||
| T3 | 19.2 (0.5) | 22 | |||||
| Desisting CP | 13 | 84.6 | 102.3 (11.3) | 55.2 (20.7) | T1 | 12.8 (0.6) | 12 |
| T2 | 16.8 (0.4) | 8 | |||||
| T3 | 19.2 (0.2) | 4 | |||||
| Stable low CP | 121 | 46.3 | 106.3a (12.5) | 58.3 (21.8) | T1 | 12.8 (0.4) | 100 |
| T2 | 16.7 (0.5) | 100 | |||||
| T3 | 19.0 (0.5) | 78 |
Abbreviations: CP, conduct problems; IQ, intelligence based on the WISC short form; SES, socioeconomic status based on the ANU4; sMRI, structural magnetic resonance imaging; WISC, Wechler Intelligence Scale for Children.
a
Significant difference between the intermediate and stable low CP class (P<0.05).