Table 4.
Length of Therapy-By Medication Class
| Medication Class | ADHD | ADHD + RD | P Value | ||||||
|---|---|---|---|---|---|---|---|---|---|
| N | Mean (Months) |
SD | Median (Months) |
N | Mean (Months) |
SD | Median (Months) |
||
| Long-Acting Stimulants | 69623 | 6.5 | 3.57 | 6.5 | 181 | 6.4 | 3.36 | 6.3 | 0.722 |
| Short-Acting Stimulants | 22739 | 4.1 | 3.28 | 3.0 | 54 | 3.2 | 2.88 | 2.0 | 0.053 |
| Any Stimulant | 75354 | 6.7 | 3.52 | 6.8 | 190 | 6.5 | 3.33 | 6.9 | 0.609 |
| Non-Stimulants | 25506 | 5.8 | 3.80 | 5.6 | 65 | 5.2 | 3.53 | 4.8 | 0.212 |
| Antidepressants | 14966 | 5.4 | 3.78 | 4.8 | 43 | 4.8 | 3.88 | 3.0 | 0.303 |
| Antipsychotics | 15703 | 6.4 | 3.75 | 6.7 | 52 | 6.3 | 3.67 | 7.3 | 0.863 |
| Anxiolytics | 3982 | 1.9 | 2.83 | 0.9 | 8 | 1.4 | 1.64 | 0.8 | 0.578 |
N is the total number of patients with non-missing days supply.
T-tests were used to examine differences in mean length of therapy between the two groups.