Daniel Gudbjartsson, Kari Stefansson and colleagues assess the effect of variants associated with mean fasting glucose levels on the variance in fasting glucose levels. They find that variants that increase both the levels and variance of fasting glucose increase type 2 diabetes risk, whereas those that increase the levels but reduce the variance do not.
- Erna V Ivarsdottir
- Valgerdur Steinthorsdottir
- Kari Stefansson
