Table 3.
Cognitive domain | Cognitive measure | Mean baseline (SD) | Range baseline | Mean follow-up (SD) | Range follow-up | p-Value |
---|---|---|---|---|---|---|
Verbal learning | RAVLT 1–5 | 57.10 (9.22) | 40–72 | 58.29 (11.29) | 30–75 | 0.069 |
Verbal memory | RAVLT 6 | 11.70 (3.11) | 5–15 | 11.33 (3.81) | 1–15 | 0.917 |
RAVLT 7 | 11.60 (3.60) | 2–15 | 12.33 (3.00) | 6–15 | 0.229 | |
RAVLT recog. | 14.40 (1.05) | 11–15 | 14.33 (1.49) | 9–15 | 0.364 | |
Attentional span | Digit span forwards | 7.48 (2.56) | 2–12 | 7.52 (2.04) | 3–12 | 0.930 |
Processing speed | RCFT time | 240.38 (105.34) | 71–455 | 168.95 (63.89) | 70–280 | 0.002 |
SDMT | 44.20 (11.15) | 24–59 | 48.52 (10.05) | 25–63 | <0.001 | |
TMT-A | 27.95 (9.88) | 13–44 | 27.80 (9.25) | 16–50 | 0.662 | |
Visuoconstruction | RCFT copy | 31.62 (4.23) | 18–36 | 30.43 (3.18) | 21.5–33 | 0.071 |
Visual memory | RCFT recall | 20.12 (6.67) | 8.5–31 | 21.69 (6.38) | 7–34.5 | 0.590 |
Executive functions | Digit span BW | 6.95 (2.33) | 4–11 | 7.48 (3.49) | 3–19 | 0.977 |
Trail Making Test B (TMT-B) | 66.85 (23.44) | 34–120 | 64.69 (19.00) | 29–107 | 0.641 | |
Phon. fluency | 13.81 (5.23) | 7–29 | 13.90 (5.22) | 3–26 | 0.610 | |
Sem. fluency | 22.95 (5.58) | 10–37 | 24.14 (6.65) | 11–40 | 0.256 |
Wilcoxon signed-rank tests comparing the baseline cognitive function with cognitive function at follow-up in N = 21 RRMS patients with Alemtuzumab treatment. Cognitive tests in bold show a significant performance increase at level α = 0.036 (Bonferroni correction for number of comparisons).
RAVLT, Rey auditory verbal learning test; digit span: digit span forward; RCFT, Rey Complex Figure Test; TMT-A, Trail Making Test part A; SDMT, Symbol Digit Modalities Test (written); Digit Span BW, Digit span backwards; TMT-B, Trail Making Test part B; Phon. Fluency, Phonematic verbal fluency with letter S (1 min.); Sem. fluency, Semantic verbal fluency with animals (1 min).