Table 4.
Associations of phosphorus intake as a categorical variable with mortality in the CKD subpopulation using Cox regression modelsa
| Phosphorus intake tertiles | Model 1 | Model 2 | Model 3 | Model 4 |
| Lowest (531 ± 11 mg/day) | Reference | Reference | Reference | Reference |
| Middle (912 ± 12 mg/day) | 0.88 (0.68–1.14) | 1.03 (0.76–1.40) | 1.07 (0.77–1.50) | 1.25 (0.87–1.78) |
| Highest (1478 ± 28 mg/day) | 0.64 (0.46–0.90) | 0.84 (0.60–1.18) | 0.92 (0.61–1.40) | 1.07 (0.67–1.70) |
a
Model 1—unadjusted; Model 2—adjusted for age, race, diabetes, myocardial infarction, congestive heart failure, cancer, smoking, alcohol use, eGFR, systolic and diastolic blood pressure; stratified by gender and stroke; Model 3—model 2 plus adjustment for energy intake and percent of calories from protein and Model 4—model 3 plus adjustment for BMI, LBM and serum albumin.