Key result
Longitudinal trajectory modelling of depression symptoms provides a more dynamic and nuanced analysis of the relationship between depression severity, course, and cognitive outcomes in older adults.
Why the study?
Does depression symptom trajectory modelling provide a more nuanced analysis of the relationship between depression and cognitive outcomes compared to cross-sectional assessment in older adults?
Does depression symptom trajectory modelling provide a more nuanced analysis of the relationship between depression and cognitive outcomes compared to cross-sectional assessment in older adults?
Longitudinal trajectory modelling of depression symptoms provides a more dynamic understanding of their relationship with cognitive decline in older adults compared to cross-sectional assessments.
Cognitive impairment is common in late-life depression [1]. In addition, depression in later life is a risk factor for dementia [2]. Most studies that have examined the association of depression with current or future cognitive impairment have relied on a cross-sectional assessment of depression [3]. However, a few studies have examined the relationship of trajectories of depression with cognitive outcomes (for example, [4-6]). This longitudinal approach allows for a more dynamic and nuanced analysis of the relationship of the severity and course of depression with cognition.
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Flint et al. (2024) conducted an editorial in Late-life depression and cognitive impairment. Longitudinal trajectory modelling of depression symptoms provides a more dynamic and nuanced analysis of the relationship between depression severity, course, and cognitive outcomes in older adults.
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