TNF and diabetes mellitus: For the AG genotype of TNF-α-238 G/A (rs361525), a higher risk for a family history of diabetes mellitus compared to other examined family histories was found [OR = 6.48, 95% confidential interval (CI) 0.7–59.6, p = 0.02, sensitivity 0.07, specificity 1.0, power test 0.289].