Table 2.

Cox proportional hazards analysis of mortality with injectable vitamin Da

ModelsNo. of PatientsHRb95% CI
Unadjusted510370.720.70 to 0.75
Adjusted
    age, gender, race, and diabetes482950.750.72 to 0.78
    age, gender, race, diabetes, and study entry period482950.750.72 to 0.78
    age, gender, race, diabetes, study entry period, and SMR482950.750.72 to 0.78
    age, gender, race, diabetes, study entry period, SMR, and dialysis access482950.750.73 to 0.78
    age, gender, race, diabetes, study entry period, SMR, dialysis access, systolic BP, body mass index, and baseline laboratory valuesc367620.800.76 to 0.83
  • a All categories for each covariate were included in the model. P < 0.001 for each comparison. HR, hazard ratio; CI, confidence interval; SMR, standardized mortality rate.

  • b Comparing vitamin D therapy with no vitamin D therapy.

  • c Laboratory values were those for albumin, calcium, phosphorus, intact parathyroid hormone, hemoglobin, ferritin, bicarbonate, urea reduction ratio, creatinine, and white blood cell count.