Table 6.
Association of age with clinical parameters in 148 non-dialysis CKD patients. See Table 2 for abbreviations. Those factors that are significantly associated in the univariate analysis are entered simultaneously into the final multivariable model (The adjusted R2 = 0.297, P = 8.9 × 10–10). Because total CPP and L-CPP showed strong colinearlity, total CPP was not included in the final multivariable model.
| Variable (Unit) | Univariate | Multivariate | ||
|---|---|---|---|---|
| r | p | β | p | |
| serum Ca (mg/dl) | −0.229 | 0.0052 | −0.189 | 0.022 |
| eGFR (ml/min/1.73m3) | −0.446 | 1.32 × 10−8 | −0.495 | 6.67 × 10−6 |
| serum FGF23 (pg/ml) | 0.168 | 0.0412 | −0.253 | 0.028 |
| serum iPTH (pg/ml) | 0.206 | 0.0131 | 0.002 | 0.986 |
| serum Mg (mg/dl) | 0.251 | 0.0021 | 0.171 | 0.021 |
| serum 1,25(OH)2D3 (pg/ml) | −0.143 | 0.0836 | — | — |
| serum P (mg/dl) | 0.228 | 0.0053 | −0.151 | 0.137 |
| L-CPP (AU) | 0.292 | 0.0003 | 0.346 | 0.005 |