Sensitivity and Specificity in Three Measures of Depression Among Mexican American Women

This paper examined the prevalence of depressive symptomotology among women of Mexican ancestry (N = 205), over the age of 18, of diverse incomes and nativity. We examined differences in rates of diagnosis by Spanish/English preference and the sensitivity and specificity of three common measures: the Patient Health Questionnaire (PHQ9), the Kessler Psychological Distress Scale (K-10), and depression questions from the Composite International Diagnostic Interview, Short Form (MDD CIDI-SF); PHQ9 was used as the "gold standard" measure. Results indicated 18-32 % of participants met criteria for depression with higher rates found among Spanish preference participants. The K-10 had significantly higher sensitivity (0.81) but lower specificity (0.79) than the MDD CIDI-SF items (0.57 and 0.89, respectively). This study suggests that the K-10 and MDD CIDI-SF measures are complementary to each other for screening of depressive symptomatology. Implications for cultural and linguistic assessment of depression are further discussed.