Table 2.
Total data and Comparison between the two studied groups according to VST time constant.
| VST | Total (n = 100) | Group A (n = 50) | Group B (n = 50) | P |
|---|---|---|---|---|
| Per CW TC | ||||
| Min. – Max. | 9.0–26.60 | 9.0–26.60 | 9.60–23.80 | 0.308 |
| Mean ± SD. | 15.38 ± 3.73 | 15.0 ± 4.04 | 15.76 ± 3.38 | |
| 95% C.I. | 14.64–16.12 | 13.85–16.15 | 14.80–16.72 | |
| Post CW TC | ||||
| Min. – Max. | 9.90–30.0 | 9.90–30.0 | 13.50–26.60 | 0.003∗ |
| Mean ± SD. | 18.11 ± 4.54 | 16.77 ± 4.87 | 19.46 ± 3.77 | |
| 95% C.I. | 17.21–19.01 | 15.39–18.15 | 18.39–20.53 | |
| Per CCW TC | ||||
| Min. – Max. | 8.0–27.0 | 8.10–23.60 | 8.0–27.0 | 0.178 |
| Mean ± SD. | 13.61 ± 3.49 | 13.14 ± 3.70 | 14.08 ± 3.23 | |
| 95% C.I. | 12.92–14.30 | 12.09–14.19 | 13.16–15.0 | |
| Post CCW TC | ||||
| Min. – Max. | 8.30–27.80 | 8.30–23.80 | 8.90–27.80 | 0.001∗ |
| Mean ± SD. | 17.75 ± 4.60 | 16.18 ± 3.84 | 19.31 ± 4.80 | |
| 95% C.I. | 16.83–18.66 | 15.09–17.27 | 17.94–20.67 | |
SD: Standard deviation CI: confidence interval for the mean.
p: p value for comparing between the studied groups ∗: Statistically significant at p ≤ 0.05.
Per CW TC: per clockwise time constant, Post CW TC: post clockwise time constant.
Per CCW TC: per counterclockwise time constant, Post CCW TC: post counterclockwise time constant.