Table 3. Multivariate adjusted means for biochemical characteristics of renal function.
| Biochemical characteristics | Mean ± SD | Tertile 1 (n = 76) | Tertile 2 (n = 75) | Tertile 3 (n = 75) | p value | P1 | P2 | P3 |
|---|---|---|---|---|---|---|---|---|
| Serum urea (mg/dL) | 33.7 ± 14.4 | 33.6 ± 12.1 | 35.6 ± 19.8 | 31.9 ± 9.2 | 0.46 | 0.30 | 0.31 | 0.54 |
| Serum creatinine (mg/dL) | 1.1 ± 0.9 | 1.08 ± 0.3 | 1.3 ± 1.5 | 1.09 ± 0.3 | 0.98 | 0.09 | 0.13 | 0.33 |
| Serum albumin (mg/dL) | 4.7 ± 2.7 | 5.1 ± 4.6 | 4.6 ± 0.3 | 4.5 ± 0.4 | 0.21 | 0.38 | 0.37 | 0.24 |
| Urine creatinine (mg/dL) | 2.45 ± 1.4 | 2.3 ± 1.4 | 2.6 ± 1.4 | 2.3 ± 1.3 | 0.83 | 0.19 | 0.18 | 0.15 |
| Urine albumin (mg/g) | 83.5 ± 148 | 68.2 ± 68.5 | 101.7 ± 194 | 80.7 ± 153 | 0.61 | 0.32 | 0.40 | 0.28 |
| hs-CRP (mg/L) | 4.8 ± 12.8 | 5.9 ± 19.5 | 3.9 ± 8 | 4.7 ± 7.1 | 0.55 | 0.51 | 0.48 | 0.51 |
| eGFR (mL/min/L/73 m2) | 77.5 ± 109 | 89 ± 154 | 64.7 ± 45.6 | 78.7 ± 97.7 | 0.56 | 0.44 | 0.44 | 0.35 |
| ACR (mg/g) | 34 ± 67.6 | 26.5 ± 20.8 | 36 ± 54.9 | 39.9 ± 104 | 0.24 | 0.74 | 0.78 | 0.91 |
Analysis of variance in crude model and analysis of covariance in adjusted models have been used (P1, adjusted model for age, sex, physical activity, and socioeconomic status; P2, Model 1 + systolic and diastolic blood pressure; P3, Model 2 + weight, height, potassium, phosphorus, and protein intake). All values are mean ± SD.
SD, standard deviation; hs-CRP, high-sensitivity C-reactive protein; eGFR, estimated glomerular filtration rate; ACR, albumin to creatinine ratio.
*Significantly different between groups (p < 0.05).