Sex differences in the psychometric properties of the Center for Epidemiological Studies–Depression (CES-D) Scale in older Filipinos

The literature has yet to fully account for sex differences in the symptomatology and measurement of depressive symptoms, especially in developing settings like the Philippines. Thus, we established the factor structure and assessed the reliability of the 11-item version of the Center for Epidemiological Studies–Depression (CES-D) Scale for assessing depressive symptoms in older Filipino men and women. Using cross-sectional data from 5,209 community-dwelling Filipinos aged 60 and above from a nationally representative survey, Confirmatory Factor Analysis (CFA) and methods in Item Response Theory (IRT) were applied to provide complementary insights into the properties of the scale and its individual items. CFA supported the multidimensionality of the scale. The scale is also sex-invariant, but the relationship between the subfactors and the higher-order factor may differ between men and women. In addition, findings from IRT analysis confirmed the overall utility of the CES-D scale, but positively stated items were found to be internally inconsistent with the rest of the scale. The scale is desirably informative for assessing more severe symptoms, although sex differences were found in the precision of individual items. In general, the 11-item CES-D Scale is an adequate multidimensional tool for assessing moderate to severe depressive symptoms in the older population, especially in older men.