Table 2.

Association of mortality with calcium, phosphorus and intact PTH.

	n (%)	Hazard ratio (95% CI)
Calcium (mg/dL)
<8	72 (2.2)	2.22 (1.43–3.44)
8–8.9	584 (17.8)	Reference
9–9.9	1,264 (38.6)	1.34 (1.08–1.66)
10–10.9	1,033 (31.5)	1.34 (1.04–1.71)
11–11.9	274 (8.4)	1.65 (1.23–2.20)
12+	49 (1.5)	2.32 (1.36–3.96)
Phosphorus (mg/dL)
<3	66 (2.0)	1.31 (0.84–2.03)
3–3.9	277 (8.5)	1.07 (0.82–1.39)
4–4.9	772 (23.6)	Reference
5–5.9	1,017 (31.0)	1.21 (0.997–1.46)
6–6.9	707 (21.6)	1.23 (0.995–1.51)
7+	437 (13.3)	1.51 (1.18–1.94)
Intact PTH (pg/mL)
<100	228 (7.0)	0.83 (0.62–1.13)
100–199	653 (19.9)	1.16 (0.96–1.40)
200–299	1,067 (32.6)	Reference
300–399	544 (16.6)	1.14 (0.93–1.40)
400–499	280 (8.6)	1.27 (0.97–1.67)
500–599	163 (5.0)	1.33 (0.96–1.84)
600–699	97 (3.0)	1.10 (0.70–1.73)
700+	244 (7.5)	1.50 (1.14–1.96)

Adjusted for age, sex, dialysis duration, serum albumin, cardiovascular disease, hypertension, diabetes mellitus, cancer, single-pool Kt/V and body mass index.

CI, confidence interval; PTH, parathyroid hormone.