Table 4.
Correlation between oxygen consumption, carbon-di-oxide production, and oxygen saturation with respiration rate, SDNN & RMSSD P*<0.05, **<0.01, ***<0.001
| S. No. | Correlation with respiration rate (RR) | All stages of LSKY | C1 (P1, P2, P3) | C2 (P1 Rest, P2 Rest, P3 Rest) | C4 (B1 Rest, B2 Rest, B3 Rest) | C5 (Cyclic rhythmic breathing) | C6(R1, R2,R3,R4) |
|---|---|---|---|---|---|---|---|
| 1 | O2 consumption | −0.53*** | −0.90 | −0.10 | 0.04 | −0.47* | −0.76 |
| 2 | CO2 production | −0.54*** | 1.00 | 0.03** | 1.00 | −0.44* | −0.91 |
| 3 | CO2/O2 | 0.56** | −1.00 | −0.26 | −0.45 | 0.46* | 0.64 |
| SPO2 | 0.34** | 0.10 | −0.53 | 0.86 | 0.07 | −0.24 | |
| Correlation within ventilatory parameters | |||||||
| 5 | O2 & CO2 | 0.98*** | 1.00** | 0.99 | 0.05 | 0.98*** | 0.93** |
| O2 & CO2/O2 | −0.92*** | −1.00 | −0.94 | −0.91 | −0.87*** | −0.94 | |
| CO2 & CO2/O2 | −0.86** | −1.00* | −0.97 | −0.46 | −0.82*** | −0.97 | |
| 4 | SPO2&O2 | −0.62 | 0.10 | 0.10 | −0.47 | −0.13 | −0.35 |
| Correlation with SDNN | |||||||
| 6 | O2 consumption | 0.54*** | −0.16 | 0.99 | 0.99 | 0.33 | 0.85 |
| 7 | CO2 production | 0.54*** | −0.19 | 0.96 | 0.96 | 0.28 | 0.60 |
| 8 | CO2/O2 | −0.49*** | 0.26 | −0.87 | −0.87 | −0.32 | −0.92 |
| 9 | SPO2 | −0.47*** | 0.96 | −0.69 | −0.69 | −0.42* | −0.79 |
| Correlation with RMSSD | |||||||
| 10 | O2 consumption | 0.43** | 0.06 | 0.66 | 0.66 | 0.35 | 0.97** |
| 11 | CO2 production | 0.42** | 0.03 | 0.56 | 0.56 | 0.32 | 0.83 |
| 12 | CO2/O2 | −0.42** | 0.03 | −0.35 | −0.35 | −0.34 | −0.98* |
| 13 | SPO2 | −0.30 | 1.00* | −0.06 | −0.06 | −0.18 | −0.53 |