Clinical Study
Long-Term Persistency of Abnormal Heart Rate Variability following Long NICU Stay and Surgery at Birth
Table 3
Heart rate variability (mean ± SD).
| | | Full-term () | Full-term surgery () | Low-pain preterm () | High-pain preterm () |
| | Baseline | | | | | | Heart rate | 78.2 (12.5) | 84.5 (12.7) | 80.2 (14.3) | 84.5 (15.1) | | LF (nu) | 46.9 (19.9) | 61.3 (17.5) | 49.8 (19.9) | 58.8 (17.4) | | HF (nu) | 43.8 (18.5) | 27.7 (10.8) | 42.5 (19.0) | 32.7 (14.5) | | LF/HF* | 1.2 (0.4–1.8) | 2.0 (1.4–3.2) | 1.4 (1.4–2.6) | 1.9 (1.3–3.8) |
| | % change in HR | 9.1 (8.8) | 2.9 (9.6) | 8.8 (9.9) | 3.9 (9.0) |
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Since the LF/HF ratio was not normally distributed, the median (25–75) is shown in the table.
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