Table 2.
Sleep parameters | All | RRD (msec) Tercile groups | P value | ||
---|---|---|---|---|---|
Median [IQR] | Shortest 75.2–112.2 |
Middle 112.2–125.0 |
Longest 125.0–189.5 |
||
AHI (/hr) | 7.5 [2.8–17.5] | 9.0 [3.2–24.3] | 7.7 [2.8–16.4] | 7.5 [2.7–15.8] | 0.0002 |
O2 desaturation index (ODI) (/hr) | 7.5 [2.8–17.5] | 8.1 [2.9–23.2] | 7.0 [2.6–16.0] | 7.4 [2.5–15.3] | 0.0005 |
Mean O2 saturation (Mean O2 Sat) (%) | 94.8 [93.7–95.7] | 94.9 [93.7–95.5] | 94.8 [93.6–95.7] | 94.7 [93.4–95.8] | 0.6 |
PCT90% (%) | 0.5 [0.03–2.7] | 0.6 [0.05–3.2] | 0.5 [0.03–2.8] | 0.5 [0.03–2.1] | 0.06 |
RRD, ECG R-wave to Radial Artery Pulse Delay (unit: msec); PCT90%, % time spent with O2 saturation (SpO2) less than 90%. P value is based on Kruskal-Wallis test.