Table 1.
Heart rate variability for critically ill children compared with normal values from the literature [26–28].
| Age of the 18 PICU subjects (number of subjects) |
HF of PICU subjects, ms2/Hz | HF normal range, ms2/Hz [26–28] | |
|---|---|---|---|
| Mean | SD | ||
| 2 months (n = 1) | 2.6 | 25.03 | 2.36 |
| 5 months (n = 1) | 22.4 | 25.03 | 2.36 |
| 8 months (n = 2) | 28.3 | 36.6 | 3.03 |
| 10 months (n = 1) | 25.9 | 36.6 | 3.03 |
| 2.5 years (n = 7) | 106.5 | 407.48 | 3.56 |
| 5 years (n = 1) | 0.04 | 398 | 377 |
| 6 years (n = 1) | 0.13 | 398 | 377 |
| 8 years (n = 1) | 8.35 | 469 | 275 |
| 12 years (n = 1) | 0.07 | 285.5 | 272 |
| 14 years (n = 1) | 9.17 | 285.5 | 272 |
| 17 years (n = 1) | 0.36 | 285.5 | 272 |
PICU: pediatric intensive care unit; HF: high frequency.