This article examines several screening tools for depression among patients diagnosed with coronary artery disease.
Researchers conducted a cross-sectional study of 1,024 nonhospitalized patients with coronary artery disease. They evaluated the test characteristics of the two-item Patient Health Questionnaire, the nine-item Patient Health Questionnaire, a two-step screening approach, and the Computerized Diagnostic Interview Schedule.
- 22 percent of patients in the study had major depression.
- The two Patient Health Questionnaires had similar sensitivity and specificity for identifying major depression.
- The two-step screening process did not perform better than either step conducted by itself.