Table 6.
HRV indices by a fractal analysis (all 5-min segments).
|
Smoothed centiles for alpha1 DFA (All) |
Smoothed centiles for alpha1 DFA (Girls) |
Smoothed centiles for alpha1 DFA (Boys) |
||||||||||||||||||
| Months |
n |
Months |
n |
Months |
n |
|||||||||||||||
| - |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
|||||
| 0 | 260 | 0.96 | 1.04 | 1.20 | 1.35 | 1.40 | 0 | 117 | 0.95 | 1.04 | 1.22 | 1.36 | 1.41 | 0 | 143 | 0.96 | 1.04 | 1.19 | 1.33 | 1.38 |
| 6 | 205 | 0.92 | 0.99 | 1.15 | 1.31 | 1.37 | 6 | 95 | 0.92 | 1.00 | 1.17 | 1.32 | 1.37 | 6 | 110 | 0.92 | 0.99 | 1.14 | 1.30 | 1.36 |
| 12 | 198 | 0.87 | 0.94 | 1.10 | 1.27 | 1.34 | 12 | 86 | 0.88 | 0.95 | 1.11 | 1.28 | 1.34 | 12 | 112 | 0.87 | 0.93 | 1.09 | 1.26 | 1.34 |
| 18 | 187 | 0.81 | 0.88 | 1.05 | 1.23 | 1.32 | 18 | 82 | 0.81 | 0.89 | 1.06 | 1.24 | 1.32 | 18 | 105 | 0.82 | 0.88 | 1.04 | 1.23 | 1.31 |
| 24 | 182 | 0.75 | 0.82 | 1.00 | 1.20 | 1.29 | 24 | 80 | 0.73 | 0.81 | 1.01 | 1.21 | 1.31 | 24 | 102 | 0.76 | 0.83 | 1.00 | 1.19 | 1.28 |
| Total |
1032 |
Total |
460 |
Total |
572 |
|||||||||||||||
|
Smoothed centiles for alpha2 DFA (All) |
Smoothed centiles for alpha2 DFA (Girls) |
Smoothed centiles for alpha2 DFA (Boys) |
||||||||||||||||||
| Months |
n |
Months |
n |
Months |
n |
|||||||||||||||
| - |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
|||||
| 0 | 260 | 0.87 | 0.93 | 1.05 | 1.16 | 1.20 | 0 | 117 | 0.88 | 0.94 | 1.07 | 1.18 | 1.22 | 0 | 143 | 0.87 | 0.92 | 1.03 | 1.14 | 1.18 |
| 6 | 205 | 0.80 | 0.84 | 0.94 | 1.04 | 1.09 | 6 | 95 | 0.80 | 0.85 | 0.95 | 1.05 | 1.10 | 6 | 110 | 0.79 | 0.84 | 0.93 | 1.03 | 1.07 |
| 12 | 198 | 0.75 | 0.79 | 0.88 | 0.98 | 1.03 | 12 | 86 | 0.75 | 0.79 | 0.89 | 0.98 | 1.03 | 12 | 112 | 0.75 | 0.79 | 0.88 | 0.98 | 1.02 |
| 18 | 187 | 0.74 | 0.77 | 0.87 | 0.98 | 1.03 | 18 | 82 | 0.73 | 0.78 | 0.88 | 0.98 | 1.02 | 18 | 105 | 0.73 | 0.77 | 0.87 | 0.98 | 1.03 |
| 24 | 182 | 0.75 | 0.80 | 0.91 | 1.03 | 1.09 | 24 | 80 | 0.75 | 0.80 | 0.92 | 1.02 | 1.06 | 24 | 102 | 0.75 | 0.79 | 0.90 | 1.03 | 1.10 |
| Total |
1032 |
Total |
460 |
Total |
572 |
|||||||||||||||
|
Smoothed centiles for H DFA (All) |
Smoothed centiles for H DFA (Girls) |
Smoothed centiles for H DFA (Boys) |
||||||||||||||||||
| Months |
n |
Months |
n |
Months |
n |
|||||||||||||||
| - |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
|||||
| 0 | 260 | 0.94 | 0.97 | 1.04 | 1.11 | 1.14 | 0 | 117 | 0.95 | 0.98 | 1.04 | 1.12 | 1.15 | 0 | 143 | 0.94 | 0.97 | 1.03 | 1.10 | 1.14 |
| 6 | 205 | 0.93 | 0.95 | 1.01 | 1.07 | 1.10 | 6 | 95 | 0.92 | 0.95 | 1.01 | 1.07 | 1.09 | 6 | 110 | 0.93 | 0.95 | 1.00 | 1.07 | 1.10 |
| 12 | 198 | 0.91 | 0.93 | 0.98 | 1.04 | 1.07 | 12 | 86 | 0.90 | 0.93 | 0.98 | 1.04 | 1.06 | 12 | 112 | 0.91 | 0.93 | 0.98 | 1.05 | 1.08 |
| 18 | 187 | 0.89 | 0.91 | 0.97 | 1.03 | 1.06 | 18 | 82 | 0.89 | 0.91 | 0.97 | 1.02 | 1.05 | 18 | 105 | 0.90 | 0.92 | 0.97 | 1.03 | 1.07 |
| 24 | 182 | 0.88 | 0.90 | 0.96 | 1.03 | 1.07 | 24 | 80 | 0.89 | 0.91 | 0.96 | 1.03 | 1.06 | 24 | 102 | 0.88 | 0.90 | 0.96 | 1.03 | 1.07 |
| Total |
1032 |
Total |
460 |
Total |
572 |
|||||||||||||||
|
Smoothed centiles for H Higuchi (All) |
Smoothed centiles for H Higuchi (Girls) |
Smoothed centiles for H Higuchi (Boys) |
||||||||||||||||||
| Months |
n |
Months |
n |
Months |
n |
|||||||||||||||
| - |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
|||||
| 0 | 260 | 1.45 | 1.49 | 1.61 | 1.75 | 1.82 | 0 | 117 | 1.45 | 1.50 | 1.61 | 1.75 | 1.81 | 0 | 143 | 1.45 | 1.49 | 1.60 | 1.75 | 1.82 |
| 6 | 205 | 1.52 | 1.57 | 1.70 | 1.83 | 1.89 | 6 | 95 | 1.52 | 1.57 | 1.69 | 1.83 | 1.89 | 6 | 110 | 1.51 | 1.57 | 1.70 | 1.84 | 1.89 |
| 12 | 198 | 1.57 | 1.63 | 1.76 | 1.90 | 1.95 | 12 | 86 | 1.57 | 1.62 | 1.75 | 1.89 | 1.95 | 12 | 112 | 1.57 | 1.63 | 1.77 | 1.90 | 1.95 |
| 18 | 187 | 1.61 | 1.67 | 1.80 | 1.94 | 2.00 | 18 | 82 | 1.60 | 1.66 | 1.79 | 1.93 | 1.99 | 18 | 105 | 1.62 | 1.68 | 1.81 | 1.94 | 2.00 |
| 24 | 182 | 1.64 | 1.69 | 1.81 | 1.96 | 2.03 | 24 | 80 | 1.63 | 1.68 | 1.80 | 1.95 | 2.03 | 24 | 102 | 1.65 | 1.70 | 1.82 | 1.96 | 2.02 |
| Total |
1032 |
Total |
460 |
Total |
572 |
|||||||||||||||
|
Smoothed centiles for H Katz (All) |
Smoothed centiles for H Katz (Girls) |
Smoothed centiles for H Katz (Boys) |
||||||||||||||||||
| Months |
n |
Months |
n |
Months |
n |
|||||||||||||||
| - |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
|||||
| 0 | 260 | 1.26 | 1.30 | 1.41 | 1.56 | 1.65 | 0 | 117 | 1.26 | 1.29 | 1.39 | 1.54 | 1.63 | 0 | 143 | 1.27 | 1.31 | 1.42 | 1.57 | 1.65 |
| 6 | 205 | 1.30 | 1.34 | 1.44 | 1.61 | 1.72 | 6 | 95 | 1.29 | 1.32 | 1.43 | 1.58 | 1.68 | 6 | 110 | 1.31 | 1.35 | 1.45 | 1.62 | 1.74 |
| 12 | 198 | 1.32 | 1.36 | 1.48 | 1.68 | 1.81 | 12 | 86 | 1.31 | 1.35 | 1.47 | 1.65 | 1.75 | 12 | 112 | 1.33 | 1.37 | 1.50 | 1.70 | 1.83 |
| 18 | 187 | 1.33 | 1.38 | 1.54 | 1.77 | 1.91 | 18 | 82 | 1.32 | 1.37 | 1.52 | 1.73 | 1.86 | 18 | 105 | 1.34 | 1.39 | 1.55 | 1.79 | 1.95 |
| 24 | 182 | 1.32 | 1.40 | 1.59 | 1.87 | 2.04 | 24 | 80 | 1.32 | 1.39 | 1.57 | 1.83 | 1.98 | 24 | 102 | 1.32 | 1.40 | 1.61 | 1.90 | 2.07 |
| Total |
1032 |
Total |
460 |
Total |
572 |
|||||||||||||||
|
Smoothed centiles for Hurst (All) |
Smoothed centiles for Hurst (Girls) |
Smoothed centiles for Hurst (Boys) |
||||||||||||||||||
| Months |
n |
Months |
n |
Months |
n |
|||||||||||||||
| - |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
|||||
| 0 | 260 | 0.198 | 0.253 | 0.370 | 0.476 | 0.515 | 0 | 117 | 0.202 | 0.256 | 0.372 | 0.478 | 0.518 | 0 | 143 | 0.196 | 0.251 | 0.368 | 0.474 | 0.514 |
| 6 | 205 | 0.142 | 0.191 | 0.304 | 0.421 | 0.471 | 6 | 95 | 0.146 | 0.198 | 0.313 | 0.424 | 0.468 | 6 | 110 | 0.139 | 0.186 | 0.297 | 0.416 | 0.470 |
| 12 | 198 | 0.097 | 0.144 | 0.254 | 0.376 | 0.433 | 12 | 86 | 0.102 | 0.152 | 0.267 | 0.381 | 0.429 | 12 | 112 | 0.093 | 0.137 | 0.244 | 0.370 | 0.430 |
| 18 | 187 | 0.063 | 0.109 | 0.220 | 0.343 | 0.400 | 18 | 82 | 0.070 | 0.119 | 0.233 | 0.351 | 0.401 | 18 | 105 | 0.057 | 0.102 | 0.210 | 0.335 | 0.394 |
| 24 | 182 | 0.039 | 0.088 | 0.202 | 0.321 | 0.372 | 24 | 80 | 0.050 | 0.099 | 0.213 | 0.332 | 0.384 | 24 | 102 | 0.032 | 0.081 | 0.194 | 0.311 | 0.362 |
| Total |
1032 |
Total |
460 |
Total |
572 |
|||||||||||||||
|
Smoothed centiles for Beta 1/f Slope (All) |
Smoothed centiles for Beta 1/f Slope (Girls) |
Smoothed centiles for Beta 1/f Slope (Boys) |
||||||||||||||||||
| Months |
n |
Months |
n |
Months |
n |
|||||||||||||||
| - |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
3rd |
10th |
50th |
90th |
97th |
|||||
| 0 | 260 | -1.63 | -1.49 | -1.15 | -0.73 | -0.51 | 0 | 117 | -1.65 | -1.49 | -1.14 | -0.78 | -0.62 | 0 | 143 | -1.62 | -1.49 | -1.15 | -0.71 | -0.48 |
| 6 | 205 | -1.80 | -1.62 | -1.21 | -0.76 | -0.55 | 6 | 95 | -1.78 | -1.61 | -1.20 | -0.76 | -0.56 | 6 | 110 | -1.80 | -1.62 | -1.21 | -0.78 | -0.58 |
| 12 | 198 | -1.91 | -1.71 | -1.23 | -0.74 | -0.52 | 12 | 86 | -1.89 | -1.69 | -1.23 | -0.71 | -0.47 | 12 | 112 | -1.93 | -1.71 | -1.24 | -0.78 | -0.59 |
| 18 | 187 | -1.98 | -1.75 | -1.22 | -0.67 | -0.43 | 18 | 82 | -1.96 | -1.74 | -1.22 | -0.64 | -0.36 | 18 | 105 | -1.99 | -1.75 | -1.22 | -0.71 | -0.50 |
| 24 | 182 | -2.00 | -1.75 | -1.17 | -0.55 | -0.27 | 24 | 80 | -2.00 | -1.75 | -1.17 | -0.53 | -0.23 | 24 | 102 | -2.01 | -1.75 | -1.16 | -0.57 | -0.32 |
| Total | 1032 | Total | 460 | Total | 572 | |||||||||||||||
DFA (detrended fluctuation analysis to quantify the degree of self-similarity (fractuality) of the RR signal.
α1 and α2 (the slope of short-and long-term fluctuations, respectively).
Higuchi and Katz algorithms and H (Hurst exponent) measure the self-similarity of the RR signal.
ß 1/f slope index (calculated on the PSD plotted on a log-log scale from 10-4 to 10-2 Hz).