Table 1.
Sample entropy (SampEn) and systolic blood-pressure-pulse interval (SBP-PI) cross-SampEn by conditions and groups as mean (SD), with significance p of the factors Group, Time, and of their interaction.
| p Value | ||||||
|---|---|---|---|---|---|---|
| Day | Night | Group | Time | Time *Group | ||
| PI SampEn | ||||||
| m = 1 | NT | 1.02 (0.21) * | 1.31 (0.31) | 0.25 | <0.001 | 0.10 |
| HT | 0.84 (0.14) ** | 1.32 (0.27) | ||||
| m = 2 | NT | 0.94 (0.23) * | 1.22 (0.29) | 0.31 | <0.001 | 0.07 |
| HT | 0.75 (0.15) ** | 1.27 (0.27) | ||||
| m = 3 | NT | 0.88 (0.23) * | 1.06 (0.21) | 0.50 | <0.001 | 0.06 |
| HT | 0.69 (0.17) ** | 1.14 (0.30) | ||||
| SBP SampEn | ||||||
| m = 1 | NT | 1.29 (0.19) | 1.41 (0.30) | 0.45 | <0.05 | >0.99 |
| HT | 1.37 (0.21) | 1.45 (0.29) | ||||
| m = 2 | NT | 1.25 (0.19) | 1.37 (0.29) | 0.49 | <0.05 | 0.92 |
| HT | 1.30 (0.18) | 1.42 (0.29) | ||||
| m = 3 | NT | 1.18 (0.18) | 1.24 (0.25) | 0.34 | 0.19 | 0.83 |
| HT | 1.25 (0.18) | 1.27 (0.28) | ||||
| DBP SampEn | ||||||
| m = 1 | NT | 1.25 (0.24) | 1.35 (0.32) | 0.83 | 0.18 | 0.47 |
| HT | 1.26 (0.26) | 1.31 (0.29) | ||||
| m = 2 | NT | 1.20 (0.25) | 1.30 (0.33) | 0.83 | 0.14 | 0.68 |
| HT | 1.19 (0.27) | 1.26 (0.30) | ||||
| m = 3 | NT | 1.17 (0.25) | 1.25 (0.32) | 0.90 | 0.16 | 0.68 |
| HT | 1.16 (0.27) | 1.23 (0.31) | ||||
| SBP-PI cross-SampEn | ||||||
| m = 1 | NT | 1.22 (0.13) * | 1.47 (0.25) | 0.78 | <0.01 | 0.86 |
| HT | 1.20 (0.15) * | 1.43 (0.28) | ||||
| m = 2 | NT | 1.19 (0.15) * | 1.46 (0.28) | 0.70 | <0.01 | 0.67 |
| HT | 1.15 (0.14) ** | 1.42 (0.28) | ||||
| m = 3 | NT | 1.13 (0.15) * | 1.33 (0.21) | 0.83 | <0.01 | 0.63 |
| HT | 1.11 (0.15) ** | 1.30 (0.27) | ||||
NT = normotensive group (8 subjects); HT = hypertensive group (8 subjects); m = embedding dimension; * and ** indicate significances p, respectively, <0.05 and <0.01 by a posteriori contrasts with False Discovery Rate correction according to [31].