Table 2. Preoperative patients’ baseline characteristics according to the degree of compensation.
| Variables | Trivial compensation, n=27 | Serious compensation, n=26 | P value |
|---|---|---|---|
| Age, years (mean ± SD) | 42.1±13.2 | 43.0±13.5 | 0.794 |
| Male, n (%) | 23 (85.2) | 18 (69.2) | 0.165 |
| BMI, kg/m2 (mean ± SD) | 26.1±3.5 | 26.3±3.4 | 0.867 |
| Mean HR, bpm (mean ± SD) | 75.3±11.0 | 77.4±15.6 | 0.567 |
| SDNN, ms (mean ± SD) | 33.041±19.558 | 34.587±21.307 | 0.784 |
| RMSSD, ms (mean ± SD) | 30.336±26.737 | 27.121±31.981 | 0.693 |
| PSI (mean ± SD) | 100.774±122.211 | 120.324±105.954 | 0.545 |
| TP, ms2 (mean ± SD) | 937.070±1,309.265 | 1,045.784±946.308 | 0.731 |
| VLF, ms2 (mean ± SD) | 435.718±658.683 | 505.762±567.807 | 0.681 |
| LF, ms2 (mean ± SD) | 279.023±471.257 | 323.712±466.973 | 0.730 |
| HF, ms2 (mean ± SD) | 218.626±324.890 | 224.002±277.592 | 0.949 |
| LF norm (mean ± SD) | 57.288±12.372 | 59.030±28.664 | 0.777 |
| HF norm (mean ± SD) | 42.712±12.372 | 40.958±28.654 | 0.776 |
| LF/HF (mean ± SD) | 1.566±0.882 | 3.182±3.360 | 0.0246 |
SD, standard deviation; BMI, body mass index; HR, heart rate; SDNN, standard deviation of RR intervals; RMSSD, root mean square of successive RR interval differences; PSI, physical stress index; TP, total power; VLF, power in very low frequency; LF, power in low frequency; HF, power in high frequency; LF norm, LF power in normalized units; HF norm, HF power in normalized units.