Table 3.
Mortality rates and crude and adjusted HR for mortality by race/ethnicitya
| Parameter | All Patients (n = 9303) | White (n = 5110) | Hispanic (n = 979) | Black (n = 3214) |
|---|---|---|---|---|
| Deaths (n) | 1432 | 874 | 130 | 428 |
| Absolute mortality rate (%) | 15.4 | 17.1 | 13.3b | 13.3b |
| Annualized mortality rate (%) | 20.0 | 23.8 | 16.0b | 16.1b |
| Crude HR of death (95% CI) | – | Reference | 0.68 (0.57 to 0.82)b | 0.68 (0.61 to 0.77)b |
| Age- and gender-adjusted HR (95% CI) | – | Reference | 0.81 (0.67 to 0.97)b | 0.90 (0.80 to 1.02) |
| Multivariable-adjusted HR (95% CI)c | – | Reference | 0.81 (0.65 to 0.99)b | 0.87 (0.76 to 0.99)b |
| Multivariable and activated vitamin D therapy–adjusted HR (95% CI)c | – | Reference | 0.84 (0.65 to 1.08) | 0.98 (0.83 to 1.16) |
a
Absolute mortality rate was calculated as the total number of deaths divided by the total number of patients at risk at the outset of the observation period. Annualized mortality rate was the total number of deaths per 100 patient-years of follow-up, censoring for recovery of renal function, kidney transplantation, or loss to follow-up.
b
Significant differences (P < 0.05) versus white.
c
Adjusted for age, gender, assigned cause of renal failure, BP, BMI, vascular access at the initiation of hemodialysis, comorbidities, SMR, laboratory tests, and urea reduction ratio.