Table 2.
Correlation coefficients of meat consumption and total protein and collagen peptides in 24 h urine.
| Spearman’s Correlation Coefficient | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Median (IQR) | Pro-Hyp | Ala-Hyp | Gly-Pro-Hyp | Phe-Hyp | Leu-Hyp | Hyp-Gly | Ile-Hyp | Pro-Hyp-Gly | Ala-Hyp-Gly | Ser-Hyp-Gly | |
| Physical characteristic | |||||||||||
| Body weight (kg) | 50.0 (45.3–54.5) | −0.01 | 0.09 | 0.09 | 0.12 | 0.15 | 0.15 | 0.08 | 0.09 | 0.02 | −0.01 |
| BMI (kg/m2) | 19.7 (18.8–21.4) | 0.16 | 0.19 | 0.16 | 0.02 | 0.23 | 0.10 | 0.26 | 0.18 | 0.14 | 0.16 |
| PAL | 1.57 (1.46–1.92) | 0.17 | 0.29 | 0.20 | 0.27 | 0.31 | 0.23 | 0.27 | 0.21 | 0.19 | 0.16 |
| Nutrient intake and meat consumption | |||||||||||
| -For a few months before urine collection | |||||||||||
| Energy (kcal/day) | 1592 (1391–1870) | 0.01 | 0.03 | −0.05 | −0.02 | 0.07 | 0.30 | 0.13 | 0.14 | 0.13 | 0.17 |
| Protein (g/day) | 54.2 (45.1–67.9) | −0.06 | 0.04 | −0.02 | −0.04 | 0.02 | 0.19 | 0.09 | −0.01 | 0.08 | 0.02 |
| Meat (g/day) | 102.9 (65.7–125.7) | −0.07 | 0.06 | −0.01 | −0.05 | 0.03 | 0.14 | 0.07 | 0.01 | 0.01 | −0.04 |
| -On the day of urine collection | |||||||||||
| Energy (kcal/day) | 1418 (1189–1714) | 0.06 | 0.10 | 0.01 | 0.03 | 0.077 | 0.24 | 0.16 | 0.09 | 0.17 | 0.15 |
| Protein (g/day) | 60.2 (40.7–71.4) | 0.07 | 0.14 | −0.04 | 0.10 | 0.18 | 0.53 | 0.26 | 0.31 | 0.22 | 0.27 |
| Meat (g/day) | 100 (24.2–156.0) | 0.41 | 0.46 | 0.23 | 0.39 | 0.49 | 0.75 | 0.55 | 0.64 | 0.47 | 0.48 |
BMI, body mass index; PAL, physical activity level. IQR, interquartile range. n = 35; r ≥ 0.34 p < 0.05, r ≥ 0.44 p < 0.01. Bold values indicate a statistically significant difference with a p-value less than 0.05.