Figure 1.

Illustration of the definition of subjective cognitive decline (SCD) and associations with depressive symptoms and dementia. SCD = Subjective cognitive decline; MCI = Mild cognitive impairment. * In this work, correlations of the dementia risk factor depression and the potential risk factor subjective cognitive decline will be analyzed. ** According to the study design, it cannot be determined if a subjective cognitive decline occurs due to depression in the sense of a psychiatric diagnosis. Consequently, this aspect of the SCD is not analyzed in this work.