Mean values of the distances (mm) between the central point of the most effective contact (MEco), of the contact immediately above it (Aco), and of the contact immediately below it (Bco) and the centre or the upper limit of the STN recording areas at 3 months and 1 year
| Distance from the centre of the STN recording area | Statistical comparison between 3 months and 1 year data | ||||
|---|---|---|---|---|---|
| 3 months | 1 year | DF | F | p Value | |
| MEco: | |||||
| AP | 0.8 (0.6) | 0.9 (0.5) | 55 | 0.265 | 0.609 |
| Lat | 0.6 (0.5) | 0.7 (0.4) | 55 | 0.308 | 0.581 |
| Vert | 1.7 (1.1) | 1.9 (1.0) | 55 | 0.298 | 0.587 |
| Aco: | |||||
| AP | 1.6 (0.6) | 1.8 (0.6) | 51 | 0.560 | 0.458 |
| Lat | 1.2 (0.5) | 1.3 (0.5) | 51 | 0.415 | 0.522 |
| Vert | 3.5 (1.1) | 3.7 (0.9) | 51 | 0.615 | 0.437 |
| Bco: | |||||
| AP | 0.4 (0.3) | 0.4 (0.2) | 54 | 0.690 | 0.410 |
| Lat | 0.4 (0.3) | 0.3 (0.3) | 54 | 0.309 | 0.580 |
| Vert | 0.9 (0.6) | 0.8 (0.6) | 54 | 0.548 | 0.462 |
| Distance from the upper limit of the STN recording area | Statistical comparison between 3 months and 1 year data | ||||
|---|---|---|---|---|---|
| 3 months | 1 year | DF | F | p Value | |
| Figures in parentheses are SD; DF, degree of freedom; p values are for comparison between the 3 months and 1 year data. | |||||
| MEco: | |||||
| AP | 0.5 (0.3) | 0.4 (0.3) | 55 | 0.975 | 0.328 |
| Lat | 0.4 (0.3) | 0.3 (0.3) | 55 | 1.222 | 0.274 |
| Vert | 1.0 (0.7) | 0.9 (0.7) | 55 | 0.584 | 0.448 |
| Aco: | |||||
| AP | 0.7 (0.5) | 0.8 (0.4) | 51 | 0.702 | 0.406 |
| Lat | 0.5 (0.4) | 0.6 (0.4) | 51 | 0.519 | 0.474 |
| Vert | 1.5 (1.0) | 1.7 (0.9) | 51 | 0.562 | 0.457 |
| Bco: | |||||
| AP | 1.0 (0.6) | 0.9 (0.5) | 54 | 0.285 | 0.595 |
| Lat | 0.8 (0.5) | 0.7 (0.5) | 54 | 0.188 | 0.666 |
| Vert | 2.1 (1.0) | 1.9 (0.9) | 54 | 0.301 | 0.585 |