TABLE 1.
Comparisons of Clinical Characteristics Between Patients with CTI and Controls
| Characteristic | CTI (n = 13) | Controls (n = 6) | P |
|---|---|---|---|
| Sex | 0.22 | ||
| Male | 7 | 5 | |
| Female | 6 | 1 | |
| Age (y) | 70.4 ± 8.9 | 55.5 ± 14.8 | 0.06 |
| Height (cm) | 160.3 ± 7.1 | 164.6 ± 10.0 | 0.30 |
| Weight (kg) | 58.5 ± 7.0 | 65.5 ± 11.7 | 0.12 |
| Rest HR (beats/min) | 66.7 ± 13.8 | 67.8 ± 12.2 | 0.86 |
| Peak HR (beats/min) | 116.9 ± 11.0 | 154.8 ± 14.4 | <0.001 |
| Peak systolic blood pressure (mm Hg) | 183.5 ± 23.3 | 203.2 ± 17.6 | 0.09 |
| Double product (beats/min⋅mm Hg) | 21,800 ± 4,200 | 31,400 ± 4,600 | <0.001 |
| Peak oxygen consumption (mL/kg/min) | 15.9 ± 3.7 | 23.5 ± 5.5 | 0.003 |
| Peak O2 pulse (mL/beats) | 7.8 ± 2.4 | 10.0 ± 2.5 | 0.08 |
| Peak work (watts) | 85.4 ± 30.1 | 131.8 ± 37.2 | 0.01 |
| HR recovery (beats/min) | 19.9 ± 14.6 | 18.3 ± 7.6 | 0.81 |
Data are expressed as mean ± SD.