Table 4 The association of log-25(OH) D2 and D3 with incident diabetes.

From: The association of serum vitamin D with incident diabetes in an African American population

Cox proportional hazards model—hazard ratio (95% CI) of all participants (n = 1671)

Log-25(OH) vitamin D2 standard deviations

Unadjusted

Model 1

Model 2

Model 3

Continuous

0.91 (0.81–1.02)

0.88 (0.78–0.99)

0.88 (0.78–1.00)

0.89 (0.79–1.01)

Cox proportional hazards model—hazard ratio (95% CI) of all participants (n = 3311)

Log-25(OH) vitamin D3 standard deviations

Unadjusted

Model 1

Model 2

Model 3

Continuous

0.96 (0.89–1.04)

0.92 (0.85–1.00)

0.93 (0.86–1.01)

0.99 (0.91–1.08)

  1. Models:
  2. Unadjusted (n = 1671, n = 3311).
  3. Model 1: age, sex, education, occupation status (n = 1670, n = 3309).
  4. Model 2: Model 1 + smoking, physical activity, alcohol use and aldosterone (n = 1648, n = 3261).
  5. Model 3: Model 2 + body-mass index (kg/m2) (n = 1648, n = 3261).
  6. Interpretation: A 1-SD higher log-25(OH)D3 was associated with a 1% lower risk of incident diabetes (Continuous association, Model 3, not significant).
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