Table 1.
General characteristics of participants at baseline.
| Characteristics | PW group | HW group | P |
|---|---|---|---|
| Subjects (n) | 18 | 20 | – |
| Sex (M/F, n) | 9/9 | 10/10 | – |
| Age (y) | 32.9 ± 10.9 | 29.6 ± 8.1 | 0.393 |
| Height (cm) | 167.6 ± 7.4 | 169.0 ± 9.1 | 0.602 |
| Weight (kg) | 66.5 ± 12.6 | 68.8 ± 15.7 | 0.493 |
| BMI (kg/m2) | 23.1 ± 2.7 | 23.8 ± 3.9 | 0.530 |
| Daily plain water intake (L/d) | 1.2 ± 0.5 | 1.2 ± 0.3 | 0.393 |
All values are means ± SDs. There were no statistical differences between the plain water (PW) group and the H2-rich water (HW) group on the basis of an unpaired t test or a Mann–Whitney U test. Information on daily plain water intake was obtained from self-reported questionnaires at baseline.