Coefficients of variation for blood pressure, heart rate, and oxygen saturation during echo and control periods, compared using the Wilcoxon signed rank test
| Systolic BP | Diastolic BP | Mean BP | Heart rate | SpO2 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Median | Range | Median | Range | Median | Range | Median | Range | Median | Range | |
| Echo CV | 5.5% | 1.9–11.3 | 6.3% | 2.0–13.5 | 5.2% | 1.5–12.0 | 3.4% | 0.9–12.4 | 2.1% | 0.0–11.9 |
| Control CV | 4.5% | 2.0–12.8 | 4.8% | 2.1–14.0 | 4.1% | 1.5–12.3 | 2.4% | 0.4–8.2 | 1.2% | 0.0–8.9 |
| p value | 0.02 | 0.006 | 0.009 | 0.006 | 0.005 | |||||