Table 2. Baseline characteristics according to cardiorespiratory fitness category.
| Under-RV | Over-RV | All | P value | |
| n | 1946 | 2687 | 4633 | |
| VO2max (METs) | 9.7 (0.9) | 13.2 (1.8) | 11.7 (2.3) | <0.001 |
| Age (years) | 33 (4) | 30 (5) | 31 (5) | <0.001 |
| Height (cm) | 169.8 (5.4) | 169.3 (5.5) | 169.5 (5.5) | 0.002 |
| Weight (kg) | 68.8 (8.4) | 63.6 (7.4) | 65.8 (8.2) | <0.001 |
| Body mass index (kg/m2) | 23.9 (2.6) | 22.2 (2.2) | 22.9 (2.5) | <0.001 |
| Systolic blood pressure (mm Hg) | 128.1 (11.4) | 123.5 (11.4) | 125.4 (11.6) | <0.001 |
| Diastolic blood pressure (mm Hg) | 75.2 (8.8) | 70.8 (8.7) | 72.6 (9.0) | <0.001 |
| Smokers (%) | 69.8 | 65.7 | 67.4 | 0.003 |
| Drinkers (%) | 71.4 | 67.3 | 69.0 | 0.003 |
| Family history of diabetes (%) | 24.0 | 20.1 | 21.7 | 0.001 |
Abbreviations: MET, metabolic equivalent; RV, reference value.
Data are expressed as mean (SD) for variables or as percentages of participants.