Currently submitted to: Journal of Medical Internet Research
Date Submitted: May 1, 2026
Open Peer Review Period: May 1, 2026 - Jun 26, 2026
(currently open for review)
Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.
Trends in Age and Socioeconomic Inequalities in Telemedicine Adoption in Japan, 2020–2024
ABSTRACT
Background:
Diffusion of innovations theory posits that inequalities arising from the early adoption of new technologies, such as telemedicine, are likely to decrease over time. However, evidence is scarce on the evolution of inequalities related to individual telemedicine adoption over time.
Objective:
This study aims to assess changes in age and socioeconomic inequalities in telemedicine adoption in Japan from 2020 to 2024.
Methods:
We used data from a nationwide, internet-based panel survey of the general population in Japan. Participants aged 18–75 years who completed both the 2020 baseline and 2024 follow-up surveys were included. The primary outcome was self-reported telemedicine adoption (ever use at each survey). Using multivariable logistic regression models, we regressed telemedicine adoption on (1) indicators of age and socioeconomic status at baseline, (2) survey year, and (3) their interaction, adjusting for other demographic, socioeconomic, and health-related characteristics. We then estimated the adjusted prevalence of telemedicine adoption in 2020 and 2024 for each age and socioeconomic group.
Results:
We included 10,818 participants (mean [SD] age, 49.7 [16.8] years; 50.7% women). In 2020, 271 participants (2.5%) reported telemedicine adoption; by the 2024 follow-up survey, this increased to 840 participants (7.8%). The prevalence of telemedicine adoption was lower among older individuals, those with lower educational attainment, those with medium income (vs high income), and unemployed individuals (vs upper non-manual workers) in 2020. While the prevalence increased across groups from 2020 to 2024, the increases were smaller among older age groups (70–75 years: +1.0 percentage points [pp] vs 18–29 years: +13.2 pp; difference-in-differences, −12.1 pp; 95% CI, −18.3 to −6.0 pp). Similarly, increases were smaller among unemployed individuals than among upper non-manual workers (+2.8 vs +5.8 pp; difference-in-differences, −3.0 pp; 95% CI, −4.7 to −1.2 pp). Changes in the prevalence of telemedicine adoption did not vary significantly by educational attainment, urban vs rural residence, or income level.
Conclusions:
Despite growth in telemedicine adoption from 2020 to 2024, age-related and occupational inequalities widened, and educational inequalities persisted, underscoring the need for strategies to reduce age-related and socioeconomic barriers to telemedicine adoption.
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