Table 1.
Descriptive characteristics of the study population (n = 2074).
| Variable | Females (n = 1147) | Males (n = 927) | p-value* | ||||
|---|---|---|---|---|---|---|---|
| n | Mean (sd) | Median (p25–p75) | n | Mean (sd) | Median (p25–p75) | ||
| Age (y) | 1147 | 22.6 (0.6) | 22.5 (22.2–22.9) | 927 | 22.7 (0.6) | 22.6 (22.2–22.9) | 0.320 |
| Weight (kg) | 1147 | 64.5 (11.2) | 62.7 (57.1–69.8) | 927 | 78.1 (13.5) | 76.6 (69.1–85.2) | < 0.001 |
| Height (m) | 1147 | 1.68 (0.06) | 1.68 (1.64–1.72) | 927 | 1.82 (0.08) | 1.82 (1.78–1.87) | < 0.001 |
| BMI (kg/m2) | 1147 | 22.8 (3.7) | 22.1 (20.3–24.1) | 927 | 23.5 (3.7) | 22.9 (21.1–25.1) | < 0.001 |
| Body fat (%) | 1147 | 26.5 (6.2) | 26.1 (22.4–30.4) | 927 | 16.8 (6.1) | 15.8 (12.5–20.1) | < 0.001 |
| VFR (score) | 1147 | 2 (1.5) | 1 (1–2) | 926 | 3 (2.9) | 2 (1–4) | < 0.001 |
| Waist circ (cm) | 1141 | 75 (9) | 73 (69–80) | 923 | 84 (10) | 83 (78–89) | < 0.001 |
| Smoking habits | 1146 | 924 | 0.014 | ||||
| Do not smoke | n = 742 | 64.8% | n = 645 | 69.8% | |||
| Used to smoke | n = 140 | 12.2% | n = 117 | 12.7% | |||
| Sometimes | n = 163 | 14.2% | n = 108 | 11.7% | |||
| Every day | n = 101 | 8.8% | n = 54 | 5.8% | |||
| E cigarette use | 1145 | n = 29 | 2.5% | 924 | n = 48 | 5.2% | 0.001 |
| Snuff use | 1146 | n = 75 | 6.5% | 925 | n = 207 | 22.4% | < 0.001 |
| PA level | 948 | 783 | 0.001 | ||||
| Low | n = 159 | 16.8% | n = 102 | 13.0% | |||
| Moderate | n = 294 | 31.0% | n = 181 | 23.1% | |||
| High | n = 495 | 52.2% | n = 500 | 63.9% | |||
| BMI category at 24 | 1147 | 927 | 0.007 | ||||
| Underweight | n = 70 | 6.1% | n = 51 | 5.5% | |||
| Normal weight | n = 854 | 74.5% | n = 637 | 68.7% | |||
| Overweight | n = 175 | 15.3% | n = 191 | 20.6% | |||
| Obesity | n = 48 | 4.2% | n = 48 | 5.2% | |||
*Mann–Whithney U-test or Chi2.