Table 3. Baseline characteristics of the study subjects.
| Characteristic | Tripep20 (n = 41) | Placebo (n = 37) | P-value |
|---|---|---|---|
| Age (yrs) | 49.829 ± 6.107 | 50.135 ± 5.945 | 0.824 |
| Weight (kg) | 57.515 ± 8.303 | 56.351 ± 6.346 | 0.493 |
| Systolic blood pressure (mmHg) | 116.829 ± 9.508 | 115.081 ± 10.196 | 0.436 |
| Diastolic blood pressure (mmHg) | 69.659 ± 8.822 | 67.946 ± 8.107 | 0.377 |
| Pulsation (beats/min) | 77.068 ± 11.218 | 75.024 ± 7.023 | 0.544 |
| Crow's-feet visual grade | 2.585 ± 0.706 | 2.946 ± 0.970 | 0.115 |
Hydrolyzed fish collagen (Collagen-Tripep20™, Tripep20) was prepared from Pangasius hypophthalmus fish skin by collagenase digestion. Liquid collagen (1,000 mg Tripep20) or placebo in a 50 mL bottle was administered orally to all subjects as a daily drink. The values are presented as mean ± SD. P-value for the Mann-Whitney U test comparison between the Tripep20 and placebo groups.