Table 2.
TOVA performance for patients with ADHD at baseline, and at months 6 and month 12 after methylphenidate treatment
| Month 0 (N = 103) | Month 6 (N = 75) | Month 12 (N = 75) | Statistica | Post-hoc tests | |
|---|---|---|---|---|---|
| Omission errors |
−1.09 (1.55) |
−1.00 (1.47) |
−1.17 (1.61) |
0.90 (0.408) |
NS |
| Commission errors |
−0.22 (1.49) |
0.01 (1.22) |
0.16 (1.05) |
3.66 (0.029)* |
Month 12 > Month 0 ** |
| Response time |
−0.83 (1.40) |
−0.75 (1.24) |
−0.79 (1.23) |
0.43 (0.654) |
NS |
| Response time variability |
−1.06 (1.47) |
−0.91 (1.31) |
−0.99 (1.36) |
1.17 (0.315) |
NS |
| Response sensitivity (d’) |
−0.85 (0.88) |
−0.65 (0.92) |
−0.67 (0.93) |
3.71 (0.026)* |
Month 6 > Month 0 ** |
| ADHD score | −2.22 (3.29) | −2.00 (3.08) | −2.09 (3.23) | 0.95 (0.390) | NS |
Note: TOVA results are reported as standard deviations from the norm, and expressed as mean (SD); month 0 data is pretreatment data; a statistical values are expressed as F (p-value) using linear mixed model analysis; NS = non-significant; *p<0.05, **p<0.01.