Beyond access: usage variety, instrumental support, and later-life depression in a prospective study of Chinese older adults
- 1Nottingham University Business School China, University of Nottingham Ningbo China , ,
Abstract
Introduction: The digital divide is treated as a social determinant of later-life mental health, yet most evidence is cross-sectional and cannot separate its prospective effect from contemporaneous confounding. We examined which facets prospectively predict depression in older adults, and through what pathway.
Methods: We analyzed three waves (2018, 2020, 2023) of the China Longitudinal Aging Social Survey. Four 2020 divide indicators (access, proficiency, usage variety, outcomes) predicted 2023 CES-D-9 symptoms, adjusting for baseline symptoms and covariates; the 2018–2020 interval provided an earlier-window replication. Half-longitudinal (Cole-Maxwell) mediation tested four social-connection mediators, moderated by hukou, living arrangement, and gender.
Results: After adjustment for baseline depression, only the usage-variety divide—a narrower range of online activity—predicted higher subsequent depressive symptoms (b = 0.069, 95% CI 0.008–0.131). Of four mediators, only instrumental support mediated this association (indirect 0.019, bootstrap 95% CI 0.010–0.033), replicating in the 2018–2020 window (indirect 0.014, bias-corrected 95% CI 0.005–0.028). The pathway was stronger among urban and co-resident adults, with baseline instrumental support far higher in urban than rural areas (difference 0.82, p < 0.001), consistent with resource multiplication rather than substitution.
Discussion: Conditioning on baseline depression, only the usage-variety divide—not access, proficiency, or outcomes—is prospectively associated with later depressive symptoms (chiefly as a stable between-person difference); this association was statistically mediated by lower instrumental support. Because the mediated association was stronger in resource-rich subgroups, the pattern is more consistent with resource multiplication than with substitution. Translating digital inclusion into mental-health gains may require broadening use while strengthening instrumental-support infrastructure, especially in rural settings.
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BibTeX
@article{hou2026beyond,
title = {{Beyond access: usage variety, instrumental support, and later-life depression in a prospective study of Chinese older adults}},
author = {Ningyi Hou and Tianyuan Chen and Zhixian Yu},
journal = {Frontiers in public health},
year = {2026},
month = sep,
doi = {10.3389/fpubh.2026.1895216},
url = {https://europepmc.org/article/PMC/PMC13662110},
note = {CC BY},
}
RIS
TY - JOUR
TI - Beyond access: usage variety, instrumental support, and later-life depression in a prospective study of Chinese older adults
AU - Ningyi Hou
AU - Tianyuan Chen
AU - Zhixian Yu
PY - 2026
DA - 2026/09/30
JO - Frontiers in public health
DO - 10.3389/fpubh.2026.1895216
UR - https://europepmc.org/article/PMC/PMC13662110
AB - Introduction: The digital divide is treated as a social determinant of later-life mental health, yet most evidence is cross-sectional and cannot separate its prospective effect from contemporaneous confounding. We examined which facets prospectively predict depression in older adults, and through what pathway. Methods: We analyzed three waves (2018, 2020, 2023) of the China Longitudinal Aging Social Survey. Four 2020 divide indicators (access, proficiency, usage variety, outcomes) predicted 2023 CES-D-9 symptoms, adjusting for baseline symptoms and covariates; the 2018–2020 interval provided an earlier-window replication. Half-longitudinal (Cole-Maxwell) mediation tested four social-connection mediators, moderated by hukou, living arrangement, and gender. Results: After adjustment for baseline depression, only the usage-variety divide—a narrower range of online activity—predicted higher subsequent depressive symptoms (b = 0.069, 95% CI 0.008–0.131). Of four mediators, only instrumental support mediated this association (indirect 0.019, bootstrap 95% CI 0.010–0.033), replicating in the 2018–2020 window (indirect 0.014, bias-corrected 95% CI 0.005–0.028). The pathway was stronger among urban and co-resident adults, with baseline instrumental support far higher in urban than rural areas (difference 0.82, p < 0.001), consistent with resource multiplication rather than substitution. Discussion: Conditioning on baseline depression, only the usage-variety divide—not access, proficiency, or outcomes—is prospectively associated with later depressive symptoms (chiefly as a stable between-person difference); this association was statistically mediated by lower instrumental support. Because the mediated association was stronger in resource-rich subgroups, the pattern is more consistent with resource multiplication than with substitution. Translating digital inclusion into mental-health gains may require broadening use while strengthening instrumental-support infrastructure, especially in rural settings.
SN - 2296-2565
ER -