Group mean (SD) scores for tests of attention and memory
| Test | 1st occasion | 2nd occasion | |||||
|---|---|---|---|---|---|---|---|
| MS | Controls | Group difference | MS | Controls | Group difference | ||
| Attention: | |||||||
| PASAT | 14.38 (7.21) | 21.20 (5.79) | z=−2.17, p=0.029 | 16.31 (8.08) | 20.90 (3.54) | NS | |
| Stroop | 35.01 (10.27) | 23.59 (5.39) | z=−2.40, p=0.016 | 32.00 (10.84) | 21.24 (3.89) | z=−2.52, p=0.012 | |
| Symbol digit | 17.44 (5.96) | 11.98 (0.94) | z=−2.97, p=0.003 | 16.45 (4.69) | 11.86 (1.33) | z=−2.94, p=0.003 | |
| Memory: | |||||||
| Spatial span | 4.92 (1.62) | 6.30 (0.95) | z=−2.03, p=0.04 | 5.08 (1.00) | 6.00 (1.25) | NS | |
| % Story recall (immediate) | 43.41 (18.66) | 64.73 (11.12) | z=−2.65, p=0.008 | 37.27 (17.77) | 56.67 (5.91) | z=−2.32, p=0.02 | |
| Digit span forward | 6.62 (1.04) | 7.90 (0.99) | z=−2.56, p=0.01 | 6.62 (1.04) | 7.50 (1.08) | NS | |
| % Story recall (delayed) | 43.13 (21.89) | 68.08 (12.96) | z=−2.54, p=0.01 | 43.64 (22.32) | 72.71 (12.78) | z=−2.81, p=0.005 | |
MS=multiple sclerosis.