Table 2.
Associations between additional autism and ADHD variables with trajectory classes
| Autism/ADHD variables | Declining versus low‐stable | Late‐emerging versus low‐stable | Late‐emerging versus declining | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OR | 95% CI | p‐value | OR | 95% CI | p‐value | OR | 95% CI | p‐value | |
| Autism diagnosis age 9 (parent‐report) | 68.1 | 32.0, 145.0 | <.001 | 2.6 | 0.3, 19.9 | 0.36 | 0.04 | 0.01, 0.25 | .001 |
| ADHD diagnosis age 7 (DAWBA) | 210.8 | 45.3, 981.8 | <.001 | 48.9 | 9.0, 266.4 | <0.001 | 0.2 | 0.1, 0.4 | <.001 |
| High autistic traits age 25 (self‐rated AQ) | 5.1 | 2.3, 11.5 | <.001 | 5.2 | 2.4, 11.2 | <0.001 | 1.0 | 0.4, 2.9 | .98 |
| High ADHD traits age 25 (self‐rated SDQ‐ADHD) | 3.3 | 2.0, 5.3 | <.001 | 3.3 | 2.1, 5.0 | <0.001 | 1.0 | 0.5, 2.0 | .97 |