Table 2.
Proportion of ADHD Sample With Persistent Symptomatology at Follow-Up Crossed With Report Source
| Informant |
|||||||
|---|---|---|---|---|---|---|---|
| Variable | Parent | Self | Combined | χ 2 | df | p | OR |
| DSM symptom threshold | 12.0% | 9.6% | 19.7% | — | — | — | — |
| Parent vs self | — | — | — | 0.28 | 1 | .59 | 1.22 |
| Parent vs combined | — | — | — | 4.09 | 1 | .04 | 1.90 |
| Self vs combined | — | — | — | 6.41 | 1 | .01 | 2.32 |
| Elevated symptom severity | 71.8% | 24.4% | 75.6% | — | — | — | — |
| Parent vs self | — | — | — | 70.31 | 1 | <.001 | 7.87 |
| Parent vs combined | — | — | — | 0.60 | 1 | .44 | 1.22 |
| Self vs combined | — | — | — | 82.05 | 1 | <.001 | 9.64 |
| Clinically significant impairment | 55.6% | 14.6% | 60.4% | — | — | — | — |
| Parent vs self | — | — | — | 58.96 | 1 | <.001 | 7.41 |
| Parent vs combined | — | — | — | .63 | 1 | .43 | 1.20 |
| Self vs combined | — | — | — | 70.36 | 1 | <.001 | 8.85 |
Note. McNemar's nonparametric chi-square tests were used to assess significant differences in prevalence from data of 159 young-adult participants with attention deficit/hyperactivity disorder for whom parent report was available. Diagnostic and Statistical Manual (DSM) symptom threshold represents DSM–A-criteria of at least six symptoms of either inattention or hyperactivity/impulsiveness. Elevated symptom severity was calculated based on 2 standard deviations above the mean of control group inattention or hyperactivity/impulsiveness severity. OR = odds ratio.