Table 1.
Pearson or Spearman Correlation Between Apple Watch and Pulse Oximeter (Contec) in Patients with Chronic Diseases for Oxygen Saturation at Rest and After Exercise
| Mean (SD) of Practical (Apple Watch) | Mean (SD) of Criterion (Contec) | R (p value) | |
|---|---|---|---|
| SpO2 at rest for hypertension patients | 96.99(1.04) | 96.71(1.06) | 0.88(<0.001) |
| SpO2 at rest for diabetic patients | 96.49(0.95) | 96.27(0.76) | 0.95(<0.001) |
| SpO2 at rest for dyslipidemia patients | 96.88(1.42) | 96.62(1.22) | 0.001(<0.001) |
| SpO2 at rest for all chronic patients | 96.83(1.11) | 96.57(1.00) | 0.92(<0.001) |
| SpO2 after exercise for hypertension patients | 96.86(1.36) | 96.66(1.05) | 0.84(<0.001) |
| SpO2 after exercise for diabetic patients | 97.02(0.76) | 96.89(0.65) | 0.81(<0.001) |
| SpO2 after exercise for dyslipidemia patients | 97.00(1.48) | 96.76(1.27) | 0.97(<0.001) |
| SpO2 after exercise for all chronic patients | 96.94(1.23) | 96.74(1.00) | 0.87(<0.001) |
Abbreviations: R, Pearson or Spearman correlation coefficient; SD, Standard deviation; SpO2, Oxygen saturation.