Table 2.
MCCB test and domain scores of the participants, and statistical tests for differences between the two cohorts
| MCCB test and domain scores | Youth-TOP | Early-Onset Study | Test statistics |
|---|---|---|---|
| N = 34 | N = 27 | ||
| Speed of processing, Z score | 0.15 (0.98) | − 0.19 (1.01) | t(57) = − 1.30, P = 0.20 |
| BACS symbol coding | 49.61 (12.98) | 46.59 (11.26) | t(58) = − 0.95, P = 0.35 |
| Animal naming | 21.09 (5.44) | 18.35 (5.46) | t(58) = − 1.93, P = 0.06 |
| Trail making test A | 36.22 (12.74) | 35.92 (14.61) | t(58) = − 0.08, P = 0.93 |
| Attention/vigilance: CPT-IP d´ | 1.77 (0.68) | 1.70 (0.70) | t(54) = − 0.38, P = 0.71 |
| Working memory, Z score | 0.28 (0.96) | − 0.36 (0.95) | t(58) = − 2.55, P = 0.01 |
| WMS-III spatial span | 16.62 (2.67) | 14.81 (2.70) | t(58) = − 2.59, P = 0.01 |
| Letter-number span | 12.94 (3.14) | 11.70 (2.32) | t(59) = − 1.71, P = 0.09 |
| Verbal learning: HVLT-R | 25.52 (5.19) | 22.81 (5.50) | t(58) = − 1.95, P = 0.06 |
| Visual learning: BVMT-R | 25.38 (6.79) | 22.93 (8.78) | t(48) = − 1.20, P = 0.24 |
| Reasoning and problem-solving: NAB Mazes | 20.29 (4.45) | 17.85 (5.69) | t(59) = − 1.88, P = 0.07 |
| Global cognition, Z score | − 0.34 (0.90) | − 0.37 (0.98) | t(50) = − 2.73, P = 0.01 |
Bold values indicate P ≤ 0.05