Relationship between serum phosphorus and mortality in non-dialysis chronic kidney disease patients: evidence from NHANES 2001–2018

Table 4 Sensitivity analyses for the association of serum phosphorus levels with all-cause mortality

Serum phosphorus, mg/dL	Event (rate)	Adjusted HR (95% CI)	P value
Participants with PTH measurements ^a ( n = 1601)
< 3.5	273(52.7)	Reference	-
3.5 to < 4.5	553(47.6)	1.06(0.89,1.28)	0.504
≥ 4.5	101(52.8)	1.26(0.90,1.76)	0.178
Participants follow up more than 2 years ^b ( n = 6826)
< 3.5	670(26.5)	Reference	-
3.5 to < 4.5	1352(28.3)	1.09(0.95,1.24)	0.226
≥ 4.5	240(33.0)	1.28(1.05,1.57)	0.015

Abbreviation: CVD Cardiovascular disease, HR hazard ratio, CI confidence interval, PTH parathyroid hormone
^aAdjusted for PTH, age, sex, race, eGFR, hemoglobin, serum albumin, serum calcium, 25(OH)D, obesity, hypertension, diabetes, and CVD
^bAdjusted for age, sex, race, eGFR, hemoglobin, serum albumin, serum calcium, 25(OH)D, obesity, hypertension, diabetes, and CVD

ISSN: 1471-2369