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Table 3 Cox proportional hazards model

From: Mortality in dialysis patients may not be associated with ESA dose: a 2-year prospective observational study

Variable

Adjusted mortality hazardsHR (95%CI)

All patients

(n = 203)

Excluding PR Group

(n = 185)

Age (per year)

1.05 (1.02-1.08)*

1.04 (1.01-1.08)*

CRP (per unit rise)

1.02 (1.01-1.03)*

1.02 (1.01-1.03)*

Duration on dialysis (per month)

1.01 (1.00-1.01)*

1.01 (1.00-1.01)*

Peripheral vascular disease

1.75 (1.00-3.04)*

1.80 (0.97-3.25)

ESA dose

1.001 (0.996-1.006)

1.000 (0.997-1.004)

[Hb]

1.008 (0.962-1.056)

0.998 (0.947-1.052)

LE Group

0.37 (0.08-1.68)

0.46 (0.10-2.23)

GR Group

1.10 (0.38-3.17)

1.39 (0.41-4.75)

HE Group

0.96 (0.30-3.11)

1.07 (0.22-5.29)

PR Group

1.58 (0.49-5.09)

-

Test of model assumption

X (4) 2 = 1.00, p = 0.910

X (4) 2 = 0.33, p = 0.988

  1. Adjusted hazard ratios of mortality for all patients (n = 203) and without the PR Group (n = 185).
  2. A test of the proportional hazards assumption was undertaken and the models were deemed not to violate any assumption. *p < 0.05.