Table 5.
Blood biomarkers of participants in different hydration statuses.
| Total | Optimal hydration | Middle hydration | Dehydration | χ 2 | P | |
|---|---|---|---|---|---|---|
| n = 109 | n = 17 | n = 45 | n = 47 | |||
| Copeptin (pmol/L) | 1.6 (0.2) | 1.6 (0.1) | 1.6 (0.2) | 1.7 (0.2) | 0.990 | 0.610 |
| Blood glucose (mmol/l) | 4.1 (0.9) | 4.6 (1.4) | 4.0 (1.2) | 4.1 (1.0) | 5.390 | 0.068 |
| Blood lipid | ||||||
| TC (mmol/L) | 5.1 (1.2) | 5.1 (1.3) | 5.0 (0.8) | 5.1 (1.7) | 2.669 | 0.263 |
| TG (mmol/L) | 0.8 (0.4) | 0.8 (0.4) | 0.9 (0.4) | 0.8 (0.5) | 1.565 | 0.457 |
| LDL-c (mmol/L) | 2.4 (0.6) | 2.6 (0.7) | 2.4 (0.6) | 2.4 (0.7) | 0.051 | 0.975 |
| HDL-c (mmol/L) | 1.6 (0.5) | 1.7 (0.4) | 1.6 (0.4) | 1.7 (0.5) | 1.768 | 0.413 |
| Testosterone (nmol/L) | 16.7 (2.8) | 15.1 (3.0) | 16.6 (2.6) | 17.1 (2.5) | 1.542 | 0.463 |
| Cortisol (ng/mL) | 82.7 (21.5) | 77.3 (34.7) | 81.5 (24.5) | 83.1 (19.8) | 0.955 | 0.620 |
| Creatinine (μmoI/L) | 65.0 (19.5) | 66.7 (21.7) | 66.7 (28.2) | 65.0 (21.7) | 2.396 | 0.302 |
| Blood ions | ||||||
| K (mmol/L) | 4.2 (0.9) | 4.5 (1.3) | 4.1 (0.8) | 4.3 (0.9) | 3.747 | 0.154 |
| Na (mmol/L) | 139.8 (6.3) | 139.0 (6.3) | 139.2 (6.4) | 140.2 (6.2) | 2.050 | 0.359 |
| Cl (mmol/L) | 102.9 (10.2) | 102.1 (9.2) | 102.9 (9.3) | 102.9 (12.8) | 0.287 | 0.867 |
| Leukocyte count (109/L) | 6.3 (2.0) | 6.4 (1.8) | 6.7 (2.4) | 6.2 (2.0) | 3.568 | 0.168 |
| Red blood cell count (1012/L) | 5.1 (0.5) | 5.2 (0.5) | 5.1 (0.6) | 5.1 (0.5) | 0.018 | 0.991 |
| Hemoglobin concentration (g/L) | 152.0 (11.5) | 153.0 (11.0) | 152.0 (12.5) | 151.0 (12.0) | 0.694 | 0.707 |
| Hematocrit (%) | 55.2 (4.5) | 56.3 (4.5) | 54.5 (4.2) | 54.7 (4.9) | 0.408 | 0.815 |
| Mean red blood cell volume (fL) | 108.3 (4.0) | 108.4 (2.5) | 108.5 (4.8) | 107.9 (4.1) | 0.170 | 0.919 |
| Mean hemoglobin content (pg) | 29.4 (2.0) | 29.6 (2.3) | 29.3 (2.5) | 29.4 (1.9) | 0.201 | 0.904 |
| Platelet count (109/L) | 253.0 (55.0) | 258.0 (86.0) | 258.0 (52.5) | 246.0 (58.0) | 2.303 | 0.316 |
| Mean platelet volume (fL) | 11.1 (1.0) | 11.4 (1.0) | 11.0 (0.9) | 11.1 (1.0) | 3.062 | 0.216 |
| Platelet hematocrit (%) | 0.3 (0.1) | 0.3 (0.1) | 0.3 (0.1) | 0.3 (0.1) | 2.617 | 0.270 |
| Neutrophil absolute value (109/L) | 3.0 (1.4) | 2.7 (1.1) | 3.2 (1.7) | 3.0 (1.0) | 2.904 | 0.234 |
| Percentage of neutrophils (%) | 47.3 (12.0) | 42.2 (16.5) | 49.5 (14.6) | 47.2 (6.7) | 2.042 | 0.360 |
Values were shown as the median and interquartile; ∗, statistically significant differences, P < 0.05. TC means total cholesterol. TG means triglyceride. LDL-C means low-density lipoprotein cholesterol. HDL-C means high-density lipoprotein cholesterol.