Table 1.
Demographic data and mean stimulation settings by stimulation configuration
| Monopolar | Bipolar | P Value (Monopolar vs. Bipolar) | Double Monopolar | Tripolar | |
|---|---|---|---|---|---|
| Age, years (mean ± SD) | 63.3 ± 0.8 | 62.5 ± 1.0 | 0.502 | 64.9 ± 1.7 | 69.0 ± 2.5 |
| Sex, n (%) | |||||
| Male | 119 (74.8) | 74 (60.7) | 20 (71.4) | 16 (61.5) | |
| Female | 40 (25.2) | 48 (39.3) | 8 (28.6) | 10 (38.5) | |
| Diagnosis, n (%) | |||||
| PD | 117 (73.6) | 88 (72.1) | 13 (46.4) | 18 (69.2) | |
| ET | 42 (26.4) | 34 (27.9) | 15 (53.6) | 8 (30.8) | |
| Stimulator settings (mean ± SD) | |||||
| Voltage, V | 3.6 ± 0.1 | 3.4 ± 0.1 | 0.041 | 3.2 ± 0.1 | 3.5 ± 0.2 |
| Pulse width, ms | 100.2 ± 2.5 | 100.6 ± 3.3 | 0.927 | 126.8 ± 8.0 | 112.8 ± 7.0 |
| Frequency, H | 170.1 ± 1.3 | 173.4 ± 1.3 | 0.090 | 181.8 ± 1.8 | 177.1 ± 4.4 |
| Power (mean ± SD) | 62.3 ± 2.3 | 61.8 ± 2.7 | 0.882 | 75.0 ± 5.6 | 69.2 ± 5.4 |
| Low | 29.6 ± 1.0 | 29.8 ± 1.0 | 0.938 | ||
| Voltage | 3.0 ± 0.1 | 2.8 ± 0.1 | 0.455 | ||
| Pulse width | 65.0 ± 2.1 | 65.4 ± 2.5 | 0.896 | ||
| Frequency | 156.6 ± 2.8 | 164.9 ± 2.8 | 0.040 | ||
| Moderate | 52.6 ± 1.1 | 54.0 ± 1.4 | 0.444 | ||
| Voltage | 3.5 ± 0.1 | 3.5 ± 0.1 | 0.835 | ||
| Pulse width | 90.5 ± 2.1 | 91.0 ± 2.2 | 0.866 | ||
| Frequency | 168.4 ± 2.1 | 172.0 ± 2.1 | 0.237 | ||
| High | 92.7 ± 3.3 | 101.4 ± 3.4 | 0.076 | ||
| Voltage | 4.0 ± 0.1 | 3.8 ± 0.1 | 0.300 | ||
| Pulse width | 131.8 ± 4.3 | 145.7 ± 4.9 | 0.037 | ||
| Frequency | 179.1 ± 1.5 | 182.8 ± 1.1 | 0.069 | ||
SD, standard deviation.