. 2021 Feb 4;10(3):273–282. doi: 10.1530/EC-20-0509
This work is licensed under a Table 3.
Summary of linear regression analyses with in the model selection for serum calcium, serum phosphate, calcium × phosphate and corrected serum calcium levels.
| Parameters | Variables in the model | Regression coefficient (95% CI) | Standardized beta | P -value | R2 of the final model |
|---|---|---|---|---|---|
| 2005 | |||||
| Serum calcium (mmol/L) | Sex | −−0.0148 (−0.036/0.0069) | −0.039 | 0.18 | |
| Age | −0.000404 (−0.00069/−0.00012) | −0.044 | 0.005 | ||
| Albumin | 0.0204 (0.0197/0.0211) | 0.671 | 0.0 × 100 | 0.457 | |
| Sex × age interaction | 0.000686 (0.000273/0.00110) | 0.100 | 0.001 | ||
| Serum phosphate (mmol/L) | Sex | −0.044789 (−0.096496/0.006919) | −0.064 | 0.09 | |
| Age | −0.005297 (−0.00597/−0.00462) | −0.318 | 1.2 × 10−51 | 0.2078 | |
| Albumin | −0.00112 (−0.00278/0.00054) | −0.020 | 0.19 | ||
| Sex × age interaction | 0.00181 (0.00082/0.00279) | 0.144 | 3.3 × 10−4 | ||
| Calcium × phosphate (mmol2/L2) | Sex | −0.12066 (−0.24159/0.00027) | −0.072 | 0.05 | |
| Age | −0.01332 (−0.01490/−0.01174) | −0.334 | 3.6 × 10−59 | 0.123 | |
| Albumin | 0.02074 (0.01686/0.02462) | 0.156 | 2.4 × 10−25 | ||
| Sex × age interaction | 0.00512 (0.00282/0.00742) | 0.170 | 1.4 × 10−5 | ||
| Corrected serum calcium (mmol/L) | Sex | −0.01510 (−0.03680/−0.006595) | −0.054 | 0.17 | |
| Age | −0.00043 (−0.00071/−0.000144) | −0.063 | 0.0031 | 0.007 | |
| Sex × age interaction | 0.00069 (0.00028/0.00111) | 0.136 | 0.0011 | ||
| 2010 | |||||
| Serum calcium (mmol/L) | Sex | −0.02823 (−0.05511/−0.00134) | −0.066 | 0.04 | |
| Age | −0.00036 (−0.00069/−0.00004) | −0.033 | 0.03 | 0.423 | |
| Albumin | 0.01882 (0.01818/0.01946) | 0.647 | 0.0 × 100 | ||
| Sex × age interaction | 0.000843 (0.00036/0.00132) | 0.115 | 5.8 × 1−4 | ||
| Serum phosphate (mmol/L) | Sex | −0.04493 (−0.10047/0.01061) | −0.066 | 0.113 | |
| Age | −0.003133 (−0.00381/−0.00246) | −0.178 | 1.4 × 10−19 | ||
| Albumin | −0.00583 (−0.00714/−0.00451) | −0.126 | 5.3 × 10−18 | 0.036 | |
| Sex × age interaction | 0.001699 (0.00071/0.00269) | 0.081 | 7.9 × 10−4 | ||
| Calcium × phosphate (mmol2/L2) | Sex | −0.13055 (−0.25391/−0.00718) | −0.086 | 0.04 | |
| Age | −0.00781(−0.00931/−0.00631) | −0.199 | 3.7 × 10−24 | 0.043 | |
| Albumin | 0.00865 (0.00572/0.01157) | 0.084 | 7.2 × 10−9 | ||
| Sex × age interaction | 0.00494 (0.00274/0.00715) | 0.190 | 1.1 × 10−5 | ||
| Corrected serum calcium (mmol/L) | Sex | −0.05961 (−0.11353/−0.00570) | −0.091 | 0.03 | |
| Age | −0.00271 (−0.00336/-0.00206) | −0.160 | 4.8 × 10−16 | 0.017 | |
| Sex × age interaction | 0.00156 (0.00060/0.00253) | 0.139 | 0.002 | ||
| 2014 | |||||
| Serum calcium (mmol/L) | Sex | −0.03429 (−0.05360/−0.01497) | −0.085 | 5.0 x 10−4 | |
| Age | −0.000223 (−0.00046/0.00001) | −0.022 | 0.06 | 0.508 | |
| Albumin | 0.02000 (0.01951/0.02049) | 0.709 | 0.0 × 10−0 | ||
| Sex × age interaction | 0.00101 (0.00067/0.00136) | 0.146 | 8.5 × 10−9 | ||
| Serum phosphate (mmol/L) | Sex | −0.06262 (−0.10594/−0.01931) | −0.096 | 0.005 | |
| Age | −0.00363 (−0.004152/−0.00310) | −0.225 | 6.1 × 10−41 | 0.051 | |
| Albumin | −0.00692 (−0.00802/−0.00582) | −0.152 | 1.4 × 10−34 | ||
| Sex × age interaction | 0.00201 (0.00123/0.00278) | 0.178 | 3.8 × 10−7 | ||
| Calcium × phosphate (mmol2/L2) | Sex | −0.17317 (−0.27049/−0.07586) | −0.118 | 4.9 × 10−4 | |
| Age | −0.00882 (−0.01000/−0.00763) | −0.243 | 1.5 × 10−47 | 0.053 | |
| Albumin | 0.00688 (0.00441/0.00935) | 0.067 | 4.9 × 10−8 | ||
| Sex × age interaction | 0.00568 (0.00394/0.00742) | 0.225 | 1.7 × 10−10 | ||
| Corrected serum calcium (mmol/L) | Sex | −0.03428 (−0.05359/−0.01498) | −0.120 | 0.001 | |
| Age | −0.00022 (−0.00046/0.00001) | −0.032 | 0.06 | 0.010 | |
| Sex × age interaction | 0.00102 (0.00067/0.00136) | 0.206 | 8.3 × 10−9 |