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)

     <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)

  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.
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