Table 3.

Cox proportional hazard: Risk for mortality, Hb <11 versus ≥11 g/dla

CovariatesHR, Crude(95% CI)HR, Adjusted(95% CI)
Hb ≥ 11 g/dl (versus Hb < 11 g/dl)0.37 (0.21 to 0.65)b0.38 (0.20 to 0.72)b
Age (yr)1.13 (0.93 to 1.37)1.14 (0.93 to 1.41)
White race1.06 (0.62 to 1.81)1.01 (0.56 to 1.82)
Male gender0.87 (0.51 to 1.46)0.98 (0.53 to 1.83)
Congenital/urologic cause of ESRD1.30 (0.76 to 2.21)1.58 (0.83 to 3.00)
HD initiation ≥ 180 d1.32 (0.73 to 2.39)1.91 (1.04 to 3.50)b
HD access type: catheter1.27 (0.81 to 1.98)1.11 (0.68 to 1.80)
Medicare/Medicaid coverage0.91 (0.63 to 1.32)1.05 (0.64 to 1.74)
Serum albumin ≥ 3.5/3.2 g/dl (BCG/BCP)0.50 (0.27 to 0.93)b0.60 (0.28 to 1.28)
Serum ferritin ≥ 800 ng/ml1.00 (0.68 to 1.48)0.96 (0.60 to 1.54)
Presence of HTN0.91 (0.67 to 1.24)0.89 (0.59 to 1.32)
eGFR by Schwartz (ml/min per 1.73 m2)1.03 (0.99 to 1.06)1.02 (0.98 to 1.06)
Iron use (yes)0.97 (0.51 to 1.84)0.73 (0.36 to 1.50)
Epoetin (units/kg per wk)
    151 to 2502.57 (1.00 to 6.57)b2.63 (1.05 to 6.60)b
    251 to 4002.32 (0.88 to 6.08)2.11 (0.77 to 5.73)
    >4002.46 (0.96 to 6.29)2.04 (0.77 to 5.38)
  • a CI, confidence interval; HR, hazard ratio.

  • b P < 0.05.