CAN SOCIAL ACTIVITY PARTICIPATION ATTENUATE AGED-RELATED COGNITIVE DECLINE? - A 12-YEAR LONGITUDINAL ANALYSIS

Sep 29, 2026

Aging increases the risk of cognitive decline, yet the long-term protective role of social engagement remains insufficiently understood. This study tests whether social participation shapes cognitive trajectories across 12 years using Health and Retirement Study data (2008–2020) from 6,109 adults aged 50+. Cognitive function is evaluated across four waves (2008, 2012, 2016, 2020) and social activity participation is measured via a validated 10-point scale. Linear mixed-effects regression in Stata models cognition change while adjusting for sociodemographic and health covariates. Greater participation predicts better cognitive performance, with stronger benefits in older age and an interaction suggesting that rising engagement over time may slow decline. Results support targeted interventions and policies for cognitive resilience by reducing barriers to social engagement.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages1

Reading Time3 min

AccessFree to download

Abstract

Study Aim and Background

Data, Sample, and Measures

Methods

Key Findings and Implications

670 Innovation in Aging, 2025, Vol. 9, No. S2 Abstract citation ID: igaf122.2287 CAN SOCIAL ACTIVITY PARTICIPATION ATTENUATE AGED-RELATED COGNITIVE DECLINE? A 12-YEAR LONGITUDINAL ANALYSIS Layla Katharine Santana1, Hongdao Meng1, Debra Dobbs1, Yujun Liu2, Angela Grippo3, and Jamie Mayer3, 1. University of South Florida, Tampa, Florida, United States, 2. Northern Illinois University, Naperville, Illinois, United States, 3. Northern Illinois University, DeKalb, Illinois, United States As populations age, the risk of cognitive decline presents significant public health challenges. While prior research highlights the role of lifestyle factors in cognitive health, less is known about the long-term protective effects of social engagement. Our previous cross-sectional study demonstrated that social participation moderates the relationship between aging and cognitive function in older adults. Building upon these findings, this study investigates how social participation influences cognitive trajectories in aging populations using data from the Health and Retirement Study (HRS) from 2008 to 2020. The sample included 6,109 adults aged 50 and older. Cognitive function scores were assessed across four waves (2008, 2012, 2016, 2020), and social activity participation was measured using a validated 10-point scale. A linear mixed-effects regression model, implemented in Stata, was used to estimate changes in cognition while accounting for key sociodemographic and health-related covariates. The mean participant age was 65.4 years (SD = 8.87); 57.8% were female, and 83.8% were White. Findings revealed that higher social activity participation predicted better cognitive function, with particularly beneficial effects observed in older age. Notably, the interaction effect indicated that increasing social engagement over time may slow cognitive decline. By examining these dynamics longitudinally, we provide deeper insight into the long-term protective effects of social participation. These findings can inform targeted interventions and policies aimed at supporting cognitive resilience in aging populations. Addressing barriers to social engagement remains critical for enhancing not only social well-being but also cognitive health among older adults.

FAQs

What does the study examine about aging and cognition?

It examines whether social activity participation attenuates age-related cognitive decline by influencing cognitive trajectories over time.

What data and participants are used in the 12-year analysis?

The study uses Health and Retirement Study (HRS) data from 2008 to 2020 and includes 6,109 adults aged 50 and older.

How is social participation measured and how are cognitive changes modeled?

Social activity participation is measured using a validated 10-point scale, and cognitive changes are estimated with linear mixed-effects regression in Stata while adjusting for key covariates.

Sep 29, 2026

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