02597nas a2200193 4500008004100000022001400041245010700055210006900162260001600231300001100247490000800258520200000266100001702266700001902283700002102302700002002323700002402343856003602367 2023 eng d a1872-697600aSocial networks, social support, and life expectancy in older adults: the Cardiovascular Health Study.0 aSocial networks social support and life expectancy in older adul c2023 Mar 03 a1049810 v1113 a

BACKGROUND: Social support and social networks have long been postulated to impact health outcomes but their impact on life expectancy and disability in older adults remains poorly quantified.

METHODS: As part of the Cardiovascular Health Study, we followed 5,749 adults aged 65 years and older from 4 US field centers for 25 years. We assessed the Lubben social network score [range 0-50] and a social support score [range 0-24] derived from the Interpersonal Support Evaluation List (ISEL-12) in two consecutive years starting at study recruitment. We used remaining years of life (YOL) from study enrollment to death to approximate life expectancy. We defined years of active life (YAL) as the number of study years in which participants lived without any difficulties in activities of daily living. We used compression of disability to reflect the proportion of life lived able (YAL/YOL). We used linear regression to adjust for socio-demographics and comorbidity.

RESULTS: The mean (standard deviation [SD]) scores were 32.3 ± 6.8 points for social network score and 8.3 ± 2.4 points for social support score. For every 1-SD increase in social network score, adjusted participant life expectancy was 0.40 years higher (95% CI 0.22-0.58; p<0.0001) and disability-free life expectancy 0.35 years higher (95% CI 0.18-0.53; p<0.0001). The association with life expectancy was modified by participant age (p<0.001), but it remained significant even among participants aged ≥75 years (3 months per SD; 95% CI 0.1-6 months, p = 0.04). Further adjustment for frailty did not attenuate the estimates. The social support scale was not significantly associated with YOL or YAL after adjustment for social network score, and neither measure was associated with compression of disability.

DISCUSSION: In older adults, higher social network scores are significantly associated with longer life expectancy and disability-free life expectancy.

1 aBhatia, Roma1 aHirsch, Calvin1 aArnold, Alice, M1 aNewman, Anne, B1 aMukamal, Kenneth, J uhttps://chs-nhlbi.org/node/931702745nas a2200217 4500008004100000022001400041245011800055210006900173260000900242300001200251490000600263520207400269100001702343700002302360700002002383700002002403700002402423700002402447700002002471856003602491 2024 eng d a2516-554200aAssociations of neighbourhood food retail with disability and death in older adults: Cardiovascular Health Study.0 aAssociations of neighbourhood food retail with disability and de c2024 ae0006460 v73 a

BACKGROUND: A healthier diet is associated with lower chronic disease burden, but the impact of neighbourhood food environments on disability and death in older adults is not known.

METHODS: In the Cardiovascular Health Study, a cohort study of adults aged 65+, we calculated study years until death (years of life (YOL)), study years without activities of daily living (ADL) difficulty (years of able life; YoAL) and percent of study years without ADL difficulty (compression of disability). Linear regression quantified associations of food establishments within 5 km of baseline home address (as a z-score) with each outcome, adjusted for sociodemographic characteristics. Sensitivity analyses considered adjustment for risk factors and comorbidities, multiple imputation, alternate neighbourhood definitions (1-km radial buffer, census tract) and restriction on residential stability.

RESULTS: We included 4298 participants followed for up to 26 years. All food retail establishments were associated with 6 months higher YoAL per SD in the main model (beta, 0.50 years; 95% CI 0.01, 0.98; p=0.046), with similar findings across sensitivity analyses except when restricting on residential stability. Supermarkets and produce markets were associated with compression of disability (beta, 2.31; 95% CI, 0.04, 4.57) and when using 1-km buffers with YOL (beta, 0.23 years; 95% CI 0.03, 0.43) and YoAL (beta, 0.21 years; 95% CI 0.01, 0.41). Non-supermarket food stores were associated with YoAL (beta, 0.67 years; 95% CI, 0.07, 1.27) and compression of disability (beta, 3.03; 95% CI 0.44, 5.62), but significance was not consistent across sensitivity analyses. Fast-food restaurants did not reach statistical significance in any model.

CONCLUSION: All food retail was associated with YOL without impairment. Neighbourhood food retail access and type may both have roles in extending YOL and years of able life among older adults, but the findings were sensitive to decisions made during measurement and modelling.

1 aBhatia, Roma1 aHernandez, Mark, A1 aPlatt, Jonathan1 aNewman, Anne, B1 aSiscovick, David, S1 aMukamal, Kenneth, J1 aLovasi, Gina, S uhttps://chs-nhlbi.org/node/9901