Table 3.
Study population characteristics.
| Mean ± SD (95% CI) | Minimum Value | Maximum Value | |
|---|---|---|---|
| Age—years | 59.5 ± 20.1 (54.7–64.2) | 18 | 87 |
| Height—cm | 171.6 ± 9.1 (169.4–173.7) | 140 | 188 |
| Weight—kg | 79.3 ± 19.5 (74.7–83.9) | 26 | 131 |
| Body mass index—kg/m2 | 26.8 ± 6.1 (25.4–28.3) | 13.3 | 47.0 |
| Maximal heart rate—bpm | 85.9 ± 21.6 (80.8–91.0) | 50 | 139 |
| Minimal heart rate—bpm | 55.6 ± 18.7 (55.6–64.4) | 31 | 107 |
| Mean heart rate—bpm | 71.8 ± 19.0 (67.4–76.3) | 42 | 116 |
| Arrhythmia (CVRR)—% | 25.0 ± 9.4 (22.8–27.2) | 10.2 | 50.9 |
Abbreviations: CVRR, coefficient of variation of RR interval; bpm, beat per minute; SD, standard deviation; 95% CI, 95% confidence interval.