Table 2.
Paired t-test and F-test result between patients with MDD and healthy volunteers' heart rates (HR) and heart rate variability (HRV) indices.
| Variables | HR(bpm) | HF(ms2) | LF/HF | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Before MT | During MT | After MT | Before MT | During MT | After MT | Before MT | During MT | After MT | ||
| p-value | 0.01 | 0.03 | 0.02 | 0.05 | 0.17 | 0.11 | 0.42 | 0.32 | 0.03 | |
| F-test value | 1.03 | 1.11 | 0.93 | 0.33 | 4.82 | 0.44 | 1.65 | 5.98 | 0.14 | |
| Statistical significance level | ** | * | * | * | ns | ns | ns | ns | * | |
| Mean ±SD | MDD | 84.7 ± 8.4 | 87.9 ± 8 | 82.2 ± 8.3 | 56.4 ± 54.4 | 29.4 ± 21.3 | 62.8 ± 31.8 | 3.5 ± 1.3 | 6.6 ± 2.8 | 4.6 ± 2.76 |
| Healthy | 73.8 ± 8.5 | 77.8 ± 8.5 | 70 ± 8.3 | 365.9 ± 519.4 | 109.9 ± 170.8 | 334.4 ± 370.1 | 1.3 ± 2.5 | 5 ± 5.4 | ±1 | |
Mean values with standard deviation (SD) of HR and HRV indices before, during and after mental task (MT). Statistical significance level:
**,
very significant;
*,
significant; ns, not significant.