Table 3.
Comparisons of the HRV Parameters Between Depressed and Healthy Females.
| Variable | Group | N | Mean ± Standard Deviation | Significance (p) |
| Age (years) |
Control | 18 | 42.06 ± 6.75 | .075 |
| Cases | 23 | 45.48 ± 6.49 | ||
| BMI (kg/m2) |
Control | 18 | 24.67 ± 3.58 | .712 |
| Cases | 23 | 25 ± 3.25 | ||
| RR | Control | 18 | 654 ± 265.03 | .393 |
| Cases | 23 | 585.74 ± 208.33 | ||
| SDNN (ms) |
Control | 18 | 147.98 ± 100.42 | .386 |
| Cases | 23 | 113.77 ± 61.63 | ||
| PNN50 (%) |
Control | 18 | 9.97 ± 8.91 | .176 |
| Cases | 23 | 5.65 ± 5.36 | ||
| RMSSD (ms) |
Control | 18 | 120.24 ± 109.84 | .401 |
| Cases | 23 | 88.04 ± 69.61 | ||
| LF (ms2) |
Control | 18 | 914.61 ± 727.63 | .694 |
| Cases | 23 | 1064.97 ± 854.61 | ||
| HF (ms2) |
Control | 18 | 6888.04 ± 5812.53 | .462 |
| Cases | 23 | 5498.58 ± 4577.39 | ||
| LF/HF | Control | 18 | 0.30 ± 0.58 | .115 |
| Cases | 23 | 0.24 ± 0.16 |
% = percentage; ms = milliseconds; kg/m2 = kilograms/meter2; *p < 0.05.