Review Article
Development of Cardiovascular Indices of Acute Pain Responding in Infants: A Systematic Review
Table 8
Mean and standard deviations for total heart rate variability in response to acute pain at less than 7 postnatal days.
| Gestational age | Reference | Mean total HRV | SD |
| 32–34 weeks | Stevens and Johnston [64] | 4.52 | 2.95 |
| 37–42 weeks | Lindh et al. [55] | 4.30 | 0.40 | Lindh et al. [54] | 4.10 | 0.35 |
|
|
Note. HRV = heart rate variability, SD = standard deviation.
|