Table 2

Unadjusted and adjusted OR for type 2 diabetes in elderly Faroese aged 70–74 years

25(OH)D3Nondiabetic*No. subjectsCrude OR (95% CI)P valueAdjusted OR (95% CI)P value
All type 2 diabetic subjects
 ≥50 nmol/L218551.001.00
 <50 nmol/L2171031.80 (1.23–2.64)0.0021.67 (1.11–2.50)0.013
New subjects (b)
 ≥50 nmol/L218221.001.00
 <50 nmol/L217482.24 (1.31–3.86)0.0031.99 (1.14–3.48)0.016
Previously known subjects (c)
 ≥50 nmol/L218331.001.00
 <50 nmol/L217551.57 (0.97–2.52)0.0641.47 (0.89–2.49)0.132
  • Data are OR (95% CI) expressed for binary traits.

  • *Nondiabetic subjects have fasting blood glucose ≤6 mmol/L;

  • †the crude model is adjusted for sex and compares the odds of either overall type 2 diabetes (all type 2 diabetic subjects), newly diagnosed type 2 diabetes (new subjects), or known type 2 diabetes in subjects (previously known subjects) with 25(OH)D <50 nmol/L with the odds in subjects with 25(OH)D ≥50 nmol/L (reference group);

  • ‡the adjusted model includes sex, BMI, total PCB, month of blood sampling, serum triacylglyceride concentration, serum HDL concentration, and smoking status.