Cognitive domain scores at baseline and follow-up in controls and patients either with or without an interval stroke/TIA and interactions (each patient group vs controls×time)*
Domain | Controls | Patients with interval stroke/TIA | Patients without interval stroke/TIA | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Baseline | Follow-up | Baseline | Follow-up | Interaction | Baseline | Follow-up | Interaction | |||
Parameter estimate | p Value | Parameter estimate | p Value | |||||||
Attention | −0.11±0.13 | −0.19±0.14 | −0.51±0.19 | −1.19±0.23 | −0.60±0.25 | 0.01 | −0.83±0.11 | −0.73±0.13 | 0.17±0.17 | 0.32 |
Verbal memory | −0.10±0.10 | 0.16±0.13 | −0.08±0.16 | −0.27±0.21 | −0.44±0.21 | 0.03 | −0.12±0.09 | −0.41±0.12 | −0.54±0.14 | <0.001 |
Visual memory | −0.07±0.11 | 0.31±0.12 | −1.00±0.17 | −1.04±0.20 | −0.41±0.21 | 0.06 | −0.86±0.10 | −0.48±0.12 | 0.00±0.15 | 0.98 |
Processing speed | −0.10±0.16 | −0.02±0.17 | −1.05±0.25 | −1.70±0.29 | −0.72±0.23 | 0.002 | −1.09±0.15 | −1.14±0.17 | −0.12±0.16 | 0.44 |
Reasoning | −0.11±0.12 | 0.06±0.13 | −0.99±0.19 | −0.86±0.21 | −0.04±0.22 | 0.84 | −1.11±0.11 | −0.73±0.12 | 0.21±0.15 | 0.16 |
Working memory | −0.10±0.10 | −0.17±0.11 | −0.61±0.15 | −1.01±0.18 | −0.33±0.16 | 0.03 | −0.66±0.09 | −0.69±0.10 | 0.04±0.11 | 0.70 |
Language | −0.01±0.15 | 0.16±0.17 | −0.33±0.22 | −1.33±0.28 | −1.16±0.27 | <0.001 | −0.82±0.13 | −0.83±0.16 | −0.17±0.18 | 0.36 |
Praxis-gnosis | −0.08±0.18 | 0.03±0.14 | −0.92±0.28 | −0.57±0.24 | 0.23±0.36 | 0.53 | −0.92±0.16 | −0.47±0.14 | 0.32±0.25 | 0.20 |
Visuoconstruction | −0.11±0.13 | −0.14±0.14 | −1.16±0.21 | −1.50±0.24 | −0.30±0.22 | 0.18 | −0.76±0.11 | −0.87±0.13 | −0.6±0.15 | 0.66 |
Mental flexibility | −0.10±0.27 | −0.19±0.22 | −1.27±0.45 | −2.14±0.42 | −0.78±0.50 | 0.11 | −2.14±0.25 | −1.64±0.23 | 0.59±0.32 | 0.06 |
Verbal fluency | −0.10±0.10 | −0.11±0.12 | −0.85±0.15 | −1.16±0.20 | −0.29±0.20 | 0.14 | −0.89±0.09 | −0.85±0.12 | 0.04±0.14 | 0.74 |
Composite score | −0.10±0.09 | −0.03±0.10 | −0.75±0.14 | −1.22±0.15 | −0.54±0.10 | <0.001 | −0.96±0.08 | −0.84±0.08 | 0.04±0.07 | 0.56 |
*Mean scores (±SE) are estimated mean values, adjusted for age, sex and education. Parameter estimates (±SE) are for the interaction terms (patient group vs controls×time) of the linear mixed models. A negative parameter estimate indicates a greater decline in patients than controls, and a positive parameter estimate indicates a smaller decline in patients than controls. p Values are for the statistical significance of the interaction parameter estimates. Analyses were repeated with outliers excluded: a significant decline in verbal fluency for patients with an interval stroke/TIA (p=0.016) was the only difference to the presented results.
TIA, transient ischaemic attack.