To the Editor Ms Geiss and colleagues¹ presented 30-year trends in diabetes prevalence and incidence among US adults, describing sustained increases in racial/ethnic minorities (non-Hispanic black and Hispanic). We wish to highlight the nonreporting of results on Asian American, Native Hawaiian, and Pacific Islander (AANHPI) adults as a separate racial/ethnic group and indicate why such reporting would have been important.

The AANHPI subgroup is among the fastest growing subgroups in the US population with substantial ethnic diversity. Overall, this group has grown approximately 45% from 12.8 million in 2000 to 18.5 million in 2010.² Diabetes, particularly type 2 diabetes mellitus, is an important public health issue among the AANHPI population. Although national comparisons of diabetes prevalence in Asian American adults overall are not compelling (9.0% for Asian American adults vs 7.6% for non-Hispanic white adults),³ disparities emerge when the data are disaggregated by ethnic subgroup. The age-adjusted diabetes prevalence is consistently twice as high among those of South Asian, Filipino, and Pacific Islander origin compared with the white population.^3,4