The word "epidemiologic" refers to the study of how diseases spread and affect populations. It involves examining patterns, causes, and effects of diseases to better understand them and develop strategies to prevent or control them.
In addition, a standard depression scale questionnaire, the Center for Epidemiologic Studies Depression (CES - D) scale, 10 reflecting the self - reported frequency of depressive symptoms during the middle of the index pregnancy was completed by some women. (pediatrics.aappublications.org)
The CES - D scale is well recognized and continues to be among the most widely used tools for epidemiologic studies of depression. (ahealthblog.com)
In addition, the 20 - item Center of Epidemiologic Studies Depression Scale (CES - D), a self - report measure of depressive symptoms in the general population over the past week35, was administered at phases 7, 9 and 11. (nature.com)