Table 4.
Concordance (sensitivity and specificity) of CIDI/DSM-IV ADHD Criterion A inattention and hyperactivity-impulsivity symptoms with blinded K-SADS ratings in the NCS-A clinical reappraisal sample (n = 321)
| Prevalence |
|||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| K-SADS |
CIDI |
SN and SP |
|||||||||||||
| Composite |
Youth |
Parent |
Composite |
Youth |
Parent |
Composite |
|||||||||
| Percentage | (SE) | Percentage | (SE) | Percentage | (SE) | Percentage | (SE) | SN | SP | SN | SP | SN | SP | ||
| I. | Inattention | ||||||||||||||
| Poor attention to detail | 14.9 | (1.8) | 5.2* | (1.3) | 17.7 | (1.7) | 19.9* | (1.6) | 18.9 | 97.2 | 40.3 | 86.2 | 48.6 | 85.1 | |
| Difficulty sustaining attention | 18.7 | (2.3) | 5.6* | (1.4) | 12.8* | (2.4) | 17.0 | (2.5) | 20.7 | 97.9 | 28.2 | 90.7 | 44.4 | 89.3 | |
| Seem not to listen | 10.8 | (1.9) | 8.7 | (1.7) | 15.9* | (1.9) | 20.9* | (2.0) | 35.1 | 94.5 | 45.2 | 87.6 | 67.6 | 84.7 | |
| Not follow through on instructions | 12.5 | (2.0) | 6.6* | (1.4) | 23.6* | (2.3) | 27.0* | (2.3) | 16.4 | 94.8 | 43.0 | 79.2 | 54.3 | 76.9 | |
| Difficulty organizing tasks | 9.0 | (1.5) | 5.8 | (1.2) | 12.2 | (2.1) | 16.9* | (2.1) | 20.9 | 95.7 | 35.9 | 90.2 | 48.6 | 86.2 | |
| Avoids tasks with sustained effort | 11.3 | (1.4) | 6.8* | (1.5) | 17.5* | (2.0) | 21.3* | (2.1) | 24.3 | 95.4 | 53.7 | 87.1 | 64.7 | 84.2 | |
| Loses things necessary for tasks | 10.1 | (1.5) | 3.9* | (0.9) | 14.7 | (2.2) | 16.4* | (2.3) | 17.5 | 97.7 | 42.7 | 88.5 | 46.6 | 87.0 | |
| Easily distracted | 17.8 | (2.0) | 7.6* | (1.6) | 21.3 | (2.7) | 25.1* | (2.9) | 23.4 | 95.8 | 51.7 | 85.2 | 61.6 | 82.9 | |
| Forgetful in daily activities | 9.2 | (1.6) | 6.0 | (1.4) | 14.8* | (2.0) | 18.2* | (2.2) | 19.7 | 95.4 | 41.7 | 87.9 | 50.6 | 85.1 | |
| II. | Hyperactivity-impulsivity | ||||||||||||||
| Fidgets or squirms | 11.6 | (2.0) | 9.2 | (1.7) | 10.7 | (2.3) | 16.6* | (2.7) | 28.4 | 93.3 | 32.1 | 92.1 | 44.4 | 87.1 | |
| Leaves seat | 11.9 | (2.1) | 6.3* | (1.4) | 11.4 | (2.0) | 15.3 | (2.3) | 26.8 | 96.5 | 43.3 | 92.9 | 53.3 | 89.8 | |
| Runs about or climbs | 6.5 | (1.4) | 11.3* | (1.8) | 15.1* | (2.7) | 22.2* | (3.0) | 23.9 | 89.6 | 42.3 | 86.8 | 48.5 | 79.6 | |
| Difficulty playing quietly | 4.8 | (1.3) | 6.8 | (1.6) | 10.6* | (2.0) | 15.3* | (2.5) | 31.9 | 94.5 | 63.6 | 92.1 | 72.9 | 87.6 | |
| On the go or driven by a motor | 6.3 | (1.6) | 11.9* | (1.9) | 13.3* | (2.7) | 22.5* | (3.4) | 28.9 | 89.3 | 46.0 | 88.9 | 64.2 | 80.3 | |
| Talks excessively | 10.2 | (1.8) | 9.9 | (1.8) | 13.4 | (1.9) | 20.1* | (2.6) | 37.9 | 93.3 | 60.6 | 91.9 | 77.8 | 86.5 | |
| Blurts out answers | 6.5 | (1.4) | 8.8 | (1.4) | 10.3* | (1.7) | 16.8* | (2.5) | 42.9 | 93.6 | 43.7 | 92.0 | 72.8 | 87.1 | |
| Difficulty waiting turn | 5.9 | (1.5) | 8.4 | (1.8) | 8.8 | (1.7) | 15.3* | (2.0) | 30.5 | 93.0 | 46.8 | 93.6 | 61.5 | 87.5 | |
| Interrupts or intrudes on others | 6.9 | (1.5) | 9.4 | (1.7) | 14.0* | (2.1) | 19.4* | (2.6) | 21.4 | 91.5 | 63.8 | 89.7 | 73.2 | 84.6 | |
*
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.