Table 3: Descriptive statistics of HRV parameters of patients without AAD pre-tratment before electrical cardioversion.
| Daily Activity | Sleep | |||||||||||
| AF ER (Group 1a) | no AF ER (Group 2a) | p < | AF ER (Group 1a) | no AF ER (Group 2a) | p < | |||||||
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | |||||
| Time domain | MeanRR | 940.4 | 86.4 | 861.2 | 102.6 | 1062.5 | 127.4 | 1002.6 | 110.9 | |||
| SDNN | 19.4 | 7.7 | 18.9 | 2.6 | 21.0 | 4.9 | 20.7 | 4.7 | ||||
| MeanHR | 64.9 | 6.1 | 71.3 | 8.0 | 57.4 | 7.2 | 60.6 | 6.5 | ||||
| SD HR | 2.0 | 0.9 | 2.4 | 0.7 | 1.7 | 0.6 | 1.6 | 0.3 | ||||
| RMSSD | 17.5 | 5.1 | 15.4 | 4.2 | 18.5 | 4.4 | 22.3 | 7.1 | ||||
| NN50 | 7.3 | 7.1 | 3.7 | 5.1 | 6.1 | 5.5 | 12.0 | 13.8 | ||||
| pNN50 | 2.4 | 2.3 | 1.0 | 1.3 | 2.2 | 2.1 | 4.1 | 4.7 | ||||
| SDNN/RMSSD | 1.1 | 0.2 | 1.3 | 0.3 | 1.1 | 0.1 | 1.0 | 0.2 | 0.05 | |||
| Frequency Domain | FFT | VLF ms2 | 112.0 | 158.8 | 80.9 | 38.0 | 108.0 | 102.6 | 62.2 | 34.4 | ||
| LF ms2 | 244.6 | 221.5 | 188.9 | 60.0 | 224.6 | 132.0 | 188.4 | 84.1 | ||||
| HF ms2 | 103.6 | 74.1 | 54.6 | 25.4 | 95.9 | 59.4 | 172.9 | 130.4 | ||||
| VLF % | 19.0 | 12.5 | 23.3 | 7.8 | 22.5 | 13.5 | 14.9 | 7.3 | ||||
| LF % | 54.3 | 10.6 | 58.2 | 7.1 | 53.2 | 11.3 | 46.2 | 12.8 | ||||
| HF % | 26.6 | 9.4 | 18.4 | 7.6 | 24.2 | 7.6 | 38.8 | 16.1 | 0.05 | |||
| LF n.u. | 67.6 | 9.4 | 76.4 | 8.5 | 69.1 | 7.3 | 55.2 | 16.5 | ||||
| HF n.u. | 32.2 | 9.4 | 23.5 | 8.5 | 30.8 | 7.3 | 44.7 | 16.5 | ||||
| TP ms2 | 460.5 | 425.2 | 324.7 | 97.0 | 428.6 | 269.6 | 423.9 | 181.4 | ||||
| LF/HF | 2.6 | 1.0 | 4.8 | 2.6 | 2.9 | 0.9 | 1.8 | 1.1 | 0.05 | |||
| AR | VLF ms2 | 96.1 | 110.5 | 87.5 | 35.9 | 111.6 | 72.5 | 62.1 | 29.3 | |||
| LF ms2 | 220.8 | 191.0 | 197.0 | 57.3 | 245.2 | 120.3 | 185.0 | 88.7 | ||||
| HF ms2 | 99.1 | 68.3 | 58.1 | 23.8 | 100.3 | 62.4 | 181.3 | 136.9 | ||||
| VLF % | 21.5 | 8.5 | 24.5 | 6.8 | 23.4 | 8.8 | 15.4 | 6.7 | 0.05 | |||
| LF % | 51.9 | 8.5 | 57.0 | 7.5 | 54.1 | 7.8 | 45.3 | 13.2 | ||||
| HF % | 26.5 | 9.0 | 18.4 | 8.2 | 22.4 | 4.0 | 39.3 | 16.5 | 0.05 | |||
| LF n.u. | 66.7 | 9.7 | 75.9 | 9.6 | 71.0 | 4.1 | 54.4 | 17.4 | 0.05 | |||
| HF n.u. | 33.1 | 9.6 | 23.9 | 9.6 | 28.9 | 4.1 | 45.5 | 17.4 | 0.05 | |||
| TP ms2 | 416.3 | 346. | 342.9 | 87.4 | 457.3 | 237.6 | 428.7 | 191.4 | ||||
| LF/HF | 2.5 | 1.1 | 4.7 | 2.8 | 2.9 | 0.5 | 1.7 | 1.1 | 0.05 | |||
| Non Linear | SD1/SD2 | 0.6 | 0.2 | 0.5 | 0.1 | 0.5 | 0.1 | 0.6 | 0.1 | 0.05 | ||
| SD1 | 12.4 | 3.6 | 10.9 | 3.0 | 13.1 | 3.1 | 15.8 | 5.0 | ||||
| SD2 | 24.2 | 10.8 | 24.2 | 3.4 | 26.4 | 6.2 | 24.4 | 5.3 | ||||
| RPlmean | 8.5 | 1.5 | 9.5 | 1.8 | 8.8 | 0.9 | 7.8 | 1.4 | ||||
| RPlmax | 86.1 | 36.9 | 151.6 | 67.5 | 0.05 | 81.2 | 20.1 | 64.8 | 30.7 | |||
| RPrec | 24.3 | 5.2 | 27.9 | 5.1 | 26.6 | 4.1 | 19.5 | 5.6 | 0.05 | |||
| RPadet | 96.4 | 1.3 | 97.1 | 1.1 | 96.9 | 0.8 | 95.1 | 1.6 | 0.05 | |||
| RPshen | 2.9 | 0.2 | 3.0 | 0.2 | 2.9 | 0.1 | 2.7 | 0.2 | ||||
| DFA a1 | 1.1 | 0.2 | 1.3 | 0.2 | 1.2 | 0.1 | 1.0 | 0.2 | 0.05 | |||
| DFA a2 | 0.5 | 0.1 | 0.6 | 0.1 | 0.4 | 0.2 | 0.4 | 0.1 | ||||
| ApEn | 1.0 | 0.1 | 1.1 | 0.0 | 0.05 | 1.0 | 0.0 | 1.1 | 0.0 | 0.05 | ||
| SampEn | 1.5 | 0.3 | 1.7 | 0.1 | 1.6 | 0.1 | 1.6 | 0.2 | 0.05 | |||
| d2 | 0.3 | 0.5 | 0.2 | 0.1 | 0.4 | 0.5 | 0.3 | 0.4 | ||||
AF ER: Early recurrence of atrial fibrillation after electrical cardioversion.