Table 5.
Correlations between relative basal ganglia volumes and motor function, correcting for age and RWM.
| Structure | AHA | BBTA | BBTU |
|---|---|---|---|
| Dominant hemisphere caudate | All-stroke: rs = -0.224, p = 0.17 | All-stroke: rs = -0.105, p = 0.52 | All-stroke: rs = -0.110, p = 0.50 |
| AIS: rs = 0.008, p = 0.98 | AIS: rs = 0.044, p = 0.87 | AIS: rs = 0.064, p = 0.81 | |
| PVI: rs = -0.165, p = 0.47 | PVI: rs = -0.117, p = 0.62 | PVI: rs = -0.171, p = 0.46 | |
| Non-dominant hemisphere caudate | All-stroke: rs = -0.020p = 0.90 | All-stroke: rs = -0.021, p = 0.90 | All-stroke: rs = -0.129, p = 0.43 |
| AIS: rs = -0.198, p = 0.45 | AIS: rs = 0.019, p = 0.94 | AIS: rs = 0.235, p = 0.36 | |
| PVI: rs = 0.323, p = 0.15 | PVI: rs = 0.028, p = 0.90 | PVI: rs = -0.481, p = 0.027*FD | |
| Dominant hemisphere putamen | All-stroke: rs = -0.212, p = 0.19 | All-stroke: rs = -0.137, p = 0.40 | All-stroke: rs = -0.225, p = 0.16 |
| AIS: rs = -0.389, p = 0.12 | AIS: rs = -0.207, p = 0.43 | AIS: rs = -0.172, p = 0.51 | |
| PVI: rs = 0.184, p = 0.43 | PVI: rs = 0.120, p = 0.60 | PVI: rs = -0.244, p = 0.29 | |
| Non-dominant hemisphere putamen | All-stroke: rs = 0.293, p = 0.066 | All-stroke: rs = 0.396, p = 0.011* | All-stroke: rs = 0.052, p = 0.75 |
| AIS: rs = 0.167, p = 0.52 | AIS: rs = 0.410, p = 0.10 | AIS: rs = 0.186, p = 0.47 | |
| PVI: rs = 0.344, p = 0.13 | PVI: rs = 0.271, p = 0.24 | PVI: rs = -0.263, p = 0.25 | |
| Caudate volume ratio | All-stroke: rs = 0.176, p = 0.28 | All-stroke: rs = 0.059, p = 0.72 | All-stroke: rs = -0.012, p = 0.94 |
| AIS: rs = -0.122, p = 0.64 | AIS: rs = 0.041, p = 0.88 | AIS: rs = 0.266, p = 0.30 | |
| PVI: rs = 0.383, p = 0.086 | PVI: rs = 0.050, p = 0.83 | PVI: rs = -0.310, p = 0.17 | |
| Putamen volume ratio | All-stroke: rs = 0.428, p = 0.006** | All-stroke: rs = 0.518, p < 0.001*** | All-stroke: rs = 0.211, p = 0.19 |
| AIS: rs = 0.382, p = 0.13 | AIS: rs = 0.556, p = 0.021*FD | AIS: rs = 0.247, p = 0.34 | |
| PVI: rs = 0.344, p = 0.13 | PVI: rs = 0.394, p = 0.077 | PVI: rs = 0.008, p = 0.97 |
Table note: AHA - Assisting Hand Assessment, BBTA - box-and-blocks test of the affected hand, BBTU - box-and-blocks test of the unaffected hand, rs - Spearman’s rho, *p < 0.05, **p < 0.01, ***p < 0.001, *FD - Not significant following FDR correction.