Does crossing the digital divide protect late-life cognition?
In 10,098 BABRI participants, digital exclusion tracked with worse processing speed and higher MCI risk; overcoming it linked to slower decline and MCI reversion.
Source
The Digital Divide and Cognitive Disparities Among Older Adults: Community-Based Cohort Study in China
Study at a glance
- Design
- Cohort — BABRI community cohort with cross-sectional and longitudinal cognitive models
- N
- N=10098 · Community-dwelling older adults; ~48.9% classified as facing digital divide
- Population
- Older adults in the Beijing Aging Brain Rejuvenation (BABRI) study, China
- Outcome
- Multidomain cognition, MCI incidence, and MCI-to-normal reversion by ICT/digital-divide status
Structured fields used in claim comparison tables when every cited study has a complete layer.
What they did
Quantified ICT use (digital divide), then used ANCOVA, mixed models, and Cox models relating divide status to multidomain cognition and MCI transitions.
What they found
48.9% faced the divide; strongest cross-sectional hit was processing speed (r=0.42). Overcoming the divide associated with lower MCI HRs (~0.43–0.5) and higher reversion HRs (~6–9).
The limits
What it doesn't show
That giving internet access alone causally prevents dementia; residual confounding by SES/health remains possible.
Key terms
- Digital divide
- Unequal ability/frequency of using ICTs.
- ICT
- Information and communication technologies.
- Processing speed
- How quickly simple cognitive operations are completed.
- MCI
- Mild cognitive impairment, an intermediate cognitive state.
- BABRI
- Beijing Aging Brain Rejuvenation community cohort.
- Hazard ratio
- Relative instantaneous event rate between groups.
Flashcards
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Quiz yourself
About what share faced the digital divide?
Common questions
Sample size?
10,098 participants.
Divide prevalence?
48.9%.
Key domain?
Processing speed.
MCI message?
Overcoming divide → lower incidence, higher reversion.
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