Table 5.
Concordance (sensitivity and specificity) of criterion-level assessments of DSM-IV ADHD based on the CIDI with those based on blinded K-SADS interviews in the NCS-A clinical reappraisal sample (n = 321)
| Prevalence |
||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| K-SADS |
CIDI |
SN and SP |
||||||||||||
| Composite |
Youth |
Parent |
Composite |
Youth |
Parent |
Composite |
||||||||
| DSM-IV Criteria1 | Percentage | (SE) | Percentage | (SE) | Percentage | (SE) | Percentage | (SE) | SN | SP | SN | SP | SN | SP |
| A1 Inattention | 10.9 | (1.7) | 4.3* | (1.2) | 11.8 | (1.5) | 15.5 | (1.6) | 10.2 | 96.4 | 36.3 | 91.2 | 47.0 | 88.3 |
| A2 Hyperactivity- Impulsivity |
4.6 | (1.2) | 6.8 | (1.5) | 8.5* | (1.9) | 14.2* | (2.7) | 35.3 | 94.6 | 61.7 | 94.0 | 76.3 | 88.8 |
| A1 or A2 | 12.4 | (1.8) | 9.0 | (1.7) | 16.2 | (2.2) | 22.5* | (2.7) | 21.0 | 92.7 | 47.4 | 88.2 | 59.2 | 82.7 |
| B Early onset | 18.7 | (2.2) | 9.3* | (1.5) | 25.5* | (2.9) | 31.3* | (3.1) | 23.6 | 93.9 | 56.7 | 81.7 | 66.8 | 76.8 |
| C Impairment | 22.5 | (2.3) | 5.2* | (1.2) | 18.9 | (2.7) | 22.0 | (2.6) | 13.7 | 97.3 | 50.0 | 90.1 | 56.2 | 87.9 |
1
Criterion A1: six or more inattention symptoms; Criterion A2: six or more hyperactivity-impulsivity symptoms; Criteria A1 or A2: six or more A1 or A2 symptoms; Criterion B: some symptoms were present before age seven years; Criterion C: some impairment present in two or more settings.
*
The prevalence estimate based on the CIDI differs significantly from the estimate based on the K-SADS at 0.05 level, two-sided test.
SE, standard error; SN, sensitivity; SP, specificity.