Basic information of the experimental subjects
| Characteristic | Sailor group | Controls group | p for difference |
|---|---|---|---|
| Age (years) | 26.3±6.8 | 26.1±6.4 | 0.828 |
| Height (cm) | 174.5±8.5 | 172.1±6.1 | 0.07 |
| Weight (kg) | 71.6±9.9 | 70.3±10.2 | 0.233 |
| Body mass index (BMI) | 23.5±1.4 | 23.7±1.3 | 0.451 |
| Systolic blood pressure (mm Hg) | 131.1±13.5 | 123.4±13 | 0.000** |
| Diastolic blood pressure (mm Hg) | 70.2±2.5 | 69.2±4.2 | 0.678 |
Values are presented as means and SDs and percentages.
p Values for differences are calculated using t-test for means and SDs, and χ2 test for percentages.
**p<0.01.