Table 2 Association of mortality with calcium, phosphorus and intact PTH.

From: Population-level associations of achievement of targets for bone-mineral markers with survival in haemodialysis patients with mildly elevated intact-PTH levels: a case-cohort study

 n (%)Hazard ratio (95% CI)
Calcium (mg/dL)
     <872 (2.2)2.22 (1.43–3.44)
    8–8.9584 (17.8)Reference
    9–9.91,264 (38.6)1.34 (1.08–1.66)
    10–10.91,033 (31.5)1.34 (1.04–1.71)
    11–11.9274 (8.4)1.65 (1.23–2.20)
    12+49 (1.5)2.32 (1.36–3.96)
Phosphorus (mg/dL)
    <366 (2.0)1.31 (0.84–2.03)
    3–3.9277 (8.5)1.07 (0.82–1.39)
    4–4.9772 (23.6)Reference
    5–5.91,017 (31.0)1.21 (0.997–1.46)
    6–6.9707 (21.6)1.23 (0.995–1.51)
    7+437 (13.3)1.51 (1.18–1.94)
Intact PTH (pg/mL)
    <100228 (7.0)0.83 (0.62–1.13)
    100–199653 (19.9)1.16 (0.96–1.40)
    200–2991,067 (32.6)Reference
    300–399544 (16.6)1.14 (0.93–1.40)
    400–499280 (8.6)1.27 (0.97–1.67)
    500–599163 (5.0)1.33 (0.96–1.84)
    600–69997 (3.0)1.10 (0.70–1.73)
    700+244 (7.5)1.50 (1.14–1.96)
  1. Adjusted for age, sex, dialysis duration, serum albumin, cardiovascular disease, hypertension, diabetes mellitus, cancer, single-pool Kt/V and body mass index.
  2. CI, confidence interval; PTH, parathyroid hormone.