Agreement between CES-D and CIDI-SF scales of depression among older adults: a cross-sectional comparative study based on the longitudinal aging study in India, 2017-19

Depression cases identified by the CES-D showed poor agreement with those identified by the CIDI-SF. Therefore, the prevalence of depressive symptoms measured by the CESD is not interchangeable with that measured by the CIDI-SF. These findings suggest the importance of using both the CES-D and CIDI-SF in large population-based cohorts and surveillance surveys to obtain more accurate and nuanced understanding of depressive disorders across various subgroups of the older population.