Serotype-specific anti-PnPs IgG concentration after stratification of diabetes status by BMI and age, and then stratification of BMI and age by diabetes status.

The IgG concentration is reported as Geometric mean concentration (GMC) with a 95% confidence interval (95% CI). For the comparison of antibody concentration between the two groups, the Mann-Whitney U test was used and a p-value < 0.05 was considered significant.