Table 9.
Neuropsychological Lab Effect Sizes
| |
|
Assess |
Mean change from baseline |
Effect size (ES) |
|||
|---|---|---|---|---|---|---|---|
| Measures | Variables | Week | Placebo, n = 24 | Zn AM, n = 20 | Zn b.i.d., n = 8 | Zn AM (15 mg) | Zn b.i.d. (30 mg) |
| CPT | Omission errors ↓ | 8 | 6.38 (24.46) | 11.17 (19.59) | −0.88 (8.29) | 0.21 | −0.36 |
| 10 | 3.67 (38.78) | 14.94 (62.54) | 2.00 (12.99) | 0.22 | −0.05 | ||
| 13 | −4.41 (26.97) | −0.59 (21.10) | 0.86 (7.79) | 0.16 | 0.24 | ||
| Commission errors ↓ | 8 | −2.33 (5.32) | −0.72 (5.56) | −0.88 (4.58) | 0.30 | 0.28 | |
| 10 | −2.05 (5.70) | −3.22 (8.66) | −3.29 (7.91) | −0.17 | −0.20 | ||
| 13 | −2.27 (5.25) | −3.24 (5.77) | −4.63 (8.18) | −0.18 | −0.39 | ||
| MMF test | Accuracy ↑ | 8 | −2.26 (8.60) | 0.22 (11.66) | 4.69 (13.44) | 0.25 | 0.71 |
| 10 | 1.52 (9.05) | 1.85 (11.36) | 5.21 (7.00) | 0.03 | 0.43 | ||
| 13 | −0.20 (11.81) | 5.39 (11.00) | 11.46 (6.95) | 0.49 | 1.10 | ||
| Seat movement ↓ | 8 | −0.13 (0.54) | −0.03 (0.53) | −0.26 (0.55) | 0.19 | −0.24 | |
| 10 | 0.13 (0.66) | 0.04 (0.58) | −0.42 (0.95) | −0.15 | −0.75 | ||
| 13 | 0.05 (0.54) | −0.23 (0.38) | −0.55 (0.89) | −0.60 | −0.95 | ||
Polarity indicated by ↑ for higher score better (positive ES favors zinc) and ↓ for lower score better (neg. ES favors zinc).
Zn = zinc; AM = morning; b.i.d. = two times per day; CPT = Continuous Performance Test; MMF = Memory for Matching Figures.