Table 3.
The Multivariate Linear Regression Model of Clinical Factors Associated With Creatinine Difference Measured by Different Methods Respectively
| 95% CI for B | |||||
|---|---|---|---|---|---|
| Cr difference between Jaffe and IDLCMS | B estimate | P‐value | Lower | Upper | r = 0.526, r 2 = 0.277 |
| Glucose (for each 1 mg/dl increase) | 0.001 | 0.298 | 0.000 | 0.002 | |
| Albumin (for each 1g/dl increase) | 0.175 | 0.146 | –0.062 | 0.412 | |
| Globulin (for each 1g/dl increase) | 0.126 | 0.080 | –0.015 | 0.268 | |
| Cr by IDLCMS (for each 1 mg/dl increase)* | –0.086 | 1.15×10−6 | –1.119 | –0.053 | |
| 95% CI for B | |||||
|---|---|---|---|---|---|
| Cr difference between enzymatic and IDLCMS | B estimate | P‐value | Lower | Upper | r = 0.491, r 2 = 0.241 |
| Glucose (for each 1 mg/dl increase) | 0.000 | 0.484 | –0.001 | 0.001 | |
| Albumin (for each 1g/dl increase) | 0.170 | 0.159 | –0.068 | 0.409 | |
| Globulin (for each 1g/dl increase) | 0.092 | 0.205 | –0.051 | 0.234 | |
| Cr by IDLCMS (for each 1 mg/dl increase)* | –0.080 | 5.34 × 10−6 | –0.114 | –0.047 | |
*P < 0.05.
B, unstandardized regression beta coefficient; CI, confidence intervals; IDLCMS, isotope dilution‐liquid chromatography‐mass spectrometry.