Continuous variables are presented as means ± SD. Categorical variables are presented as absolute and relative frequencies. Associations between categorical variables were tested by χ^sup 2^ test, while differences between categorical and continuous variables were tested by Student's t or Mann-Whitney tests. Due to multiple comparisons, Bonferroni correction was used to account for increase in type I error. The association between food intake and markers of glycemic control was also tested with a multiple linear regression model. Reported P values are based on two-sided tests and compared with a significance level of 5%.