Bidirectional associations between socioeconomic status, physical activity, and depressive symptoms in middle-aged and older adults: A cross-lagged prospective cohort study
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.Physical activity mediates the link between depression and socioeconomic status in older adults. Lower physical activity is linked to depression, impacting socioeconomic status, especially for single women.
Area Of Science
- Gerontology
- Public Health
- Psychiatry
Background
- Socioeconomic status (SES) and depression symptoms are significant concerns for middle-aged and older adults.
- Understanding the interplay between SES, depression, and physical activity is crucial for public health interventions.
Purpose Of The Study
- To investigate the bidirectional relationship between SES and depression symptoms in adults aged 45 and older.
- To examine the mediating role of physical activity in the SES-depression relationship.
Main Methods
- Longitudinal study of 23,747 adults (≥45 years) across four international cohorts (HRS, ELSA, MHAS, SHARE) over six years.
- Latent class analysis for SES categorization, self-reported physical activity frequency, and validated depression scales (CES-D, EURO-D).
- Cross-lagged models were employed to analyze bidirectional associations and mediation effects.
Main Results
- Strong continuity observed in SES, physical activity, and depressive symptoms across the study period.
- SES and physical activity demonstrated a positive bidirectional relationship.
- Depressive symptoms were associated with reduced levels of physical activity.
Conclusions
- Physical activity mediates the relationship between depressive symptoms and subsequent SES.
- Depression poses a greater risk to the SES of middle-aged and older single women in developed nations.
- Further research should explore additional factors influencing depression risk in older adults.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
Related Concept Videos
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
During replication, the complementary strands in double-stranded DNA are synthesized at different rates. Replication first begins on the leading strand. Replication starts later, occurs more slowly, and proceeds discontinuously on the lagging strand.
There are several major differences between synthesis of the leading strand and synthesis of the lagging strand. 1) Leading strand synthesis happens in the direction of replication fork opening, whereas lagging strand synthesis happens in the...
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...
Unlike mitosis, meiosis aims for genetic diversity in its creation of haploid gametes. Dividing germ cells first begin this process in prophase I, where each chromosome—replicated in S phase—is now composed of two sister chromatids (identical copies) joined centrally.
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...