Table 2.
Comparison of MC-ApEn, MSE, PAR, and HRV between Groups 1 and 2.
| Parameter | Group 1 | Group 2 | P value |
|---|---|---|---|
| MC-ApEnSS | 5.18 ± 0.59 | 5.22 ± 1.02 | P = 0.869 |
| MC-ApEnLS | 5.32 ± 0.50 | 4.74 ± 0.78 | P = 0.003 |
| MSERRI, SS | 5.17 ± 0.48 | 5.11 ± 1.08 | P = 0.509 |
| MSERRI, LS | 5.28 ± 0.47 | 4.85 ± 0.88 | P = 0.038 |
| MSEPPGA, SS | 4.14 ± 1.09 | 4.03 ± 1.21 | P = 0.664 |
| MSEPPGA, LS | 4.65 ± 0.95 | 3.93 ± 1.19 | P = 0.017 |
| PAR | 0.46 ± 0.14 | 0.34 ± 0.10 | P = 0.006 |
| LHR | 1.94 ± 1.21 | 1.32 ± 1.00 | P = 0.031 |
| LFP | 311.66 ± 274.85 | 100.87 ± 95.96 | P < 0.001 |
| HFP | 206.50 ± 184.93 | 126.02 ± 148.70 | P = 0.024 |
Group 1: healthy upper middle-aged subjects. Group 2: upper middle-aged subjects with type 2 diabetes. MC-ApEn: multiscale cross-approximate entropy. MSE: multiscale entropy. RRI: R-R intervals. PPGA: photoplethysmography amplitude. SS: small scale (the sum of the algorithm between scale factors 1–3). LS: large scale (the sum of the algorithm between Scale factors 4–6). PAR: pulse-pulse interval and amplitude ratio. LHR: low-frequency-power/high-frequency power ratio. LFP: low-frequency power. HFP: high-frequency power.