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Descriptive characteristics of predictor and outcome variables
| Total sample (N = 101) | ||||
|---|---|---|---|---|
| Mean | SE | Min | Max | |
| Week 1 SSC (times per week) | 5.56 | 0.45 | 0 | 23 |
| HF-HRV (ms2) | 8.44 | 0.94 | 0.35 | 41.64 |
| Days on ventilation | 1.97 | 0.51 | 0 | 33 |
| Days on oxygen | 16.76 | 2.72 | 0 | 134 |
| LOS (d) | 39.43 | 2.54 | 8 | 134 |
| PMA at discharge (wk) | 36.83 | 0.19 | 34.71 | 47.57 |
Abbreviations: HF-HRV, high-frequency heart rate variability; LOS, length of hospital stay; PMA, postmenstrual age; SE, standard error; SSC, skin-to-skin contact.
