Table 3. Final adjusted Cox proportional hazards model predicting 12-month follow-up mortality

Patient CharacteristicdAll Hazard Ratio (99% CI)Diabetes Mellitus as Cause of ESRD Hazard Ratio (99% CI)Hypertension as Cause of ESRD Hazard Ratio (99% CI)≥ 65 yr Hazard Ratio (99% CI)
a NE, factor not entered into the model.
b NS, not significant.
c BCG, bromcresol green laboratory method, BCP, bromcresol purple laboratory method. Factors entered into the model but found to be not significant; gender, mean Kt/V ≥ 1.2, and ESRD Network.
d Referent groups: Non-Hispanic White for ethnicity; 18 to 44 yr for age; 2+ yr for duration of dialysis.
e P < 0.001.
f P < 0.01.
Ethnicity
    Hispanic0.76 (0.60 to 0.96)f0.67 (0.50 to 0.90)e0.86 (0.50 to 1.48)0.92 (0.69 to 1.23)
    Non-Hispanic Black0.66 (0.56 to 0.78)e0.59 (0.47 to 0.74)e0.67 (0.49 to 0.90)e0.70 (0.57 to 0.87)e
Age group (yr)
    45 to 642.03 (1.47 to 2.79)e1.66 (1.01 to 2.73)f2.76 (1.28 to 5.97)eNE
    65+3.86 (2.84 to 5.24)e2.92 (1.80 to 4.73)e5.17 (2.45 to 10.92)eNE
Age (yr)NEaNENE1.04 (1.02 to 1.05)e
Diabetes mellitus as cause of ESRD1.36 (1.17 to 1.59)eNANA1.38 (1.14 to 1.68)e
Presence of amputation1.53 (1.23 to 1.91)e1.53 (1.18 to 1.97)eNSb1.50 (1.13 to 1.99)e
Duration of dialysis (yr)
    <0.50.57 (0.45 to 0.72)e0.48 (0.34 to 0.68)e0.57 (0.35 to 0.92)f0.58 (0.44 to 0.77)e
    0.5 to 0.90.71 (0.57 to 0.88)e0.69 (0.51 to 0.94)f0.64 (0.41 to 0.99)f0.73 (0.56 to 0.95)f
    1.0 to 1.90.88 (0.74 to 1.06)0.76 (0.59 to 0.99)f0.84 (0.59 to 1.20)0.80 (0.64 to .99)f
Mean post-dialysis BMI (kg/m2)0.97 (0.96 to 0.99)e0.980 (0.964 to 0.997)f0.97 (0.95 to 0.99)f0.98 (0.96 to 0.99)f
Mean hemoglobin 11 g/d0.71 (0.62 to 0.82)e0.66 (0.54 to 0.82)e0.72 (0.54 to 0.95)f0.73 (0.61 to 0.87)e
Mean serum albumin ≥ 4.0/3.7 g/d (BCG/BCP)c0.58 (0.49 to 0.70)e0.64 (0.50 to 0.83)e0.57 (0.41 to 0.78)e0.62 (0.50 to 0.77)e
Catheter access1.71 (1.46 to 2.01)e1.74 (1.38 to 2.20)e1.71 (1.25 to 2.35)e1.53 (1.25 to 1.86)e