GAD1 and diabetes mellitus: As shown by Table 2, participants missing data on at least one mental health measure (i.e., PHQ, GAD, and/or PAID) were younger, more likely to have a race/ethnicity other than White or African American, and had completed less education than those with complete data on all three measures; however, they did not differ from those with complete data in terms of gender, household income, or diabetes type.