Table 1.
Demographic Data and Neuropsychological Measures (Mean and SD)
| Patients (n = 20) | Controls (n = 20) | Difference | |
| Sex (m/f) | 14/6 | 11/9 | P = .514 |
| Age (years) | 34.5 (10.2) | 30.7 (9.1) | P = .217 |
| PANSS positive | 10.8 (3.5) | ||
| PANSS negative | 13.9 (3.9) | ||
| PANSS general | 26.4 (6.2) | ||
| PANSS total | 51.0 (11.3) | ||
| VLMT, immediate recall (trial 1–5) | 50.1 (11.5) | 61.9 (7.6) | P = .001 |
| VLMT, delayed recall (trial 6) | 9.3 (3.2) | 13.9 (1.1) | P < .001 |
| VLMT, recognition (trail 7) | 11.8 (3.7) | 14.1 (1.8) | P = .017 |
| Digit span | 13.1 (4.3) | 19.1 (2.9) | P < .001 |
| Block span | 13.5 (3.4) | 17.9 (2.8) | P < .001 |
| Letter-number-sequencing | 13.6 (4.2) | 18.5 (3.2) | P < .001 |
| DSST | 46.1 (13.8) | 69.0 (7.1) | P < .001 |
| TMT A (s) | 36.5 (19.6) | 25.2 (10.4) | P = .032 |
| TMT B (s) | 76.9 (42.6) | 50.9 (17.6) | P = .018 |
| Composite episodic memory score | −0.66 (0.96) | 0.56 (0.48) | P < .001 |
| Composite working memory score | −0.67 (0.86) | 0.47 (0.61) | P < 0.001 |
| Composite attention score | −0.54 (1.04) | 0.46 (0.49) | P < 0.001 |
Note: PANSS, Positive and Negative Symptoms Scale; VLMT, Auditory Verbal Learning and Memory Test; DSST, Digit symbol substitution test; TMT, Trail making test.