Table 1.
Participant characteristics
| Variables | < 50 years (N=5685) | ≥ 50 years (N=1541) | P value |
|---|---|---|---|
| Age (years) | 38.2 ± 6.4 | 55.6 ± 5.4 | <0.01 |
| Anthropometric measures | |||
| Weight (kg) | 83.1 ± 12.7 | 82.8 ± 11.6 | <0.01 |
| Waist girth (cm) | 92.2 ± 10.3 | 94.9 ± 9.5 | <0.01 |
| BMI (kg/m2) | 25.8 ± 3.5 | 26.2 ± 3.1 | <0.01 |
| Smoking and alcohol | |||
| Never smoked n (%) | 4483 (78.8) | 1141 (74.0) | <0.01 |
| Former smoker n (%) | 287 (5.1) | 144 (9.3) | <0.01 |
| Current smoker n (%) | 915 (16.1 | 256 (16.6) | 0.62 |
| Alcohol intake (drinks/ week) | 10.7 ± 15.1 | 11.5 ± 16.3 | <0.01 |
| Metabolic profile | |||
| Triglycerides (mg/dl) | 125.6 ± 88.9 | 143.3 ± 97.9 | <0.001 |
| HDL-cholesterol (mg/dl) | 45.6 ± 11.8 | 46.2 ± 12.4 | <0.01 |
| Glucose (mg/dl) | 99.0 ± 12.2 | 104.0 ± 19.3 | <0.001 |
| Systolic BP (mmHg) | 117.7 ± 11.6 | 123.3 ± 14.8 | <0.001 |
| Diastolic BP (mmHg) | 78.6 ± 8.9 | 61.2 ± 12.5 | 0.35 |
| Metabolic Syndrome n (%) | 1175 (20.7) | 488 (31.6) | <0.01 |
| Relative muscle strength | |||
| Composite strength (kg/body weight) | 2.62 ± 0.4 | 2.25 ± 0.3 | <0.01 |
| Cardiorespiratory fitness | |||
| Maximal fitness (METs) | 12.7 ± 2.4 | 11.1 ± 2.3 | <0.01 |
| Treadmill Time (min) | 20.1 ± 4.8 | 16.9 ± 4.8 | 0.79 |
| Leisure time physical activity | |||
| Inactive n (%) | 1244 (21.8) | 337 (21.8) | 0.99 |
| Moderate n (%) | 3108 (54.6) | 865 (56.1) | 0.30 |
| Vigorous n (%) | 1333 (23.4) | 339 (22.0) | 0.23 |
Continuous variables are presented as mean ± standard deviation and categorical variables are presented as n (%). Relative muscle strength is defined as muscle strength (kg) divided by body mass (kg). BMI= Body mass index, HDL-cholesterol= High density lipoproteins