Abstract
BACKGROUND: As of December 2023, China's population aged 60 and above reached 296.97 million, accounting for 21.1% of the total population. The convergence of an aging society and a digital society presents significant challenges for older adults, particularly in terms of digital inclusion and access to healthcare. This study investigates the impact of digital literacy on the consumption of healthcare services among older adults in China and explores the underlying mechanisms involving social support and technology acceptance. METHODS: Data from 1,107 valid questionnaires from adults aged 60 and above were analyzed. Digital literacy was assessed using a unidimensional 10-item scale developed for this study. Healthcare service consumption was measured using a validated 8-item scale covering two dimensions: therapeutic and preventive services. Data analysis employed OLS regression, mediation, and moderation models. This study adopted a cross-sectional design with two independent waves of surveys (2019 and 2022) to avoid repeated sampling of the same individuals. RESULTS: Digital literacy demonstrated a significant positive effect on the consumption of healthcare services among older adults (p < 0.01), encompassing both therapeutic and preventive services. Age, urban residence, and education level were also significant positive predictors. Both formal and informal social support were identified as significant mediators in this relationship, with informal support exhibiting a stronger mediating effect. Specifically, digital literacy was positively associated with overall healthcare utilisation (β = 0.218, 95% CI: 0.182-0.254, p < 0.01), therapeutic services (β = 0.182, 95% CI: 0.145-0.219, p < 0.01), and preventive services (β = 0.265, 95% CI: 0.223-0.307, p < 0.01). CONCLUSION: Enhancing digital literacy is a crucial strategy for promoting healthcare service utilisation among older adults in an increasingly digitalized society. Policymakers should prioritize improving digital literacy and integrating digital technology into social support systems. Fostering technology acceptance can further amplify these positive effects. This study provides empirical evidence for understanding the role of digital literacy in healthcare consumption and offers valuable insights for policy development. Limitations include the small sample size relative to China's total older population (n = 1,107) and limited geographical coverage (only seven cities), which may restrict the generalisability of findings to remote rural or megacity areas.