Clinical features of 958 study subjects (sample 1) and of 527 study subjects (sample 2) according to the rs9267551 polymorphism of DDAH2.

Data are means ± SD. Comparisons between two groups were performed using unpaired Student's t. Categorical variables were compared by χ2 test.§P values refer to results after analyses with adjustment for gender.#P values refer to results after analyses with adjustment for age, and gender using a general linear model.*P values refer to results after analyses with adjustment for age, gender and BMI using a general linear model. Effect sizes (β and SE) per type 2 diabetes risk allele and corresponding P values are shown. ISI = insulin sensitivity index.