Table 4.
Design Features of Studies by Type of Medication (Percentage of Each Medication Class)
| Nonstimulant/Other | Short-acting Stimulant | Long-acting Stimulant | P value* | ||
|---|---|---|---|---|---|
| Change or Outcome Score | |||||
| Change | 70 | 9 | 37.5 | .02 | |
| Outcome | 30 | 91 | 62.5 | ||
| Type of Rater | |||||
| Teacher | 30 | 46 | 50 | .25 | |
| Parent | 20 | 46 | 12.5 | ||
| Physician | 50 | 9 | 37.5 | ||
| Score Category | |||||
| ADHD Total | 60 | 73 | 75 | .77 | |
| Hyperactive-impulsive | 30 | 27 | 12.5 | ||
| Inattentive | 10 | 0 | 12.5 | ||
| Study Design | |||||
| Crossover | 0 | 55 | 12.5 | .009 | |
| Parallel | 100 | 45 | 87.5 | ||
| Placebo Lead-in | |||||
| No | 90 | 91 | 75 | .65 | |
| Yes | 10 | 9 | 25 | ||
| Nonresponders Excluded | |||||
| No | 100 | 82 | 62.5 | .12 | |
| Yes | 0 | 18 | 37.5 | ||
| Best vs Fixed Dose | |||||
| Best | 75 | 100 | 71 | .26 | |
| Fixed | 25 | 0 | 29 | ||
*
P values derived from Fisher's Exact Test