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July 12, 2026Dementia and Geriatric Cognitive Disorders

Indoor air pollution and neurocognitive disorders in younger and older adults in a marginalized district of Lima, Peru

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Authors

ATAlexandra Elena Chang TamayoECEsteban Chávez CaroyMNMarleny Nolasco

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Overview

Randomized trial examines cognitive impairment linked to indoor air pollution in adults, suggesting no significant association.

Key Points

  • This research aims to evaluate the link between indoor air pollution and neurocognitive disorders among adults in a low-income area of Lima, Peru.
  • Assessed neurocognitive disorders using validated cognitive examinations for two age groups (30-59 and ≥60).
  • Defined indoor air pollution based on the use and duration of pollutant-emitting cooking fuels.
  • Conducted the assessment in Puente Piedra, Lima with a total of 1,052 participants.
  • NCD prevalence was 21.9% in younger adults (30-59 years) and 36.1% in older adults (≥60 years).
  • 16% of younger and 13.3% of older adults reported exposure to indoor air pollution.
  • No significant association between indoor pollution and neurocognitive disorders was found in either age group.

Cite This Study

Tamayo et al. (2026) studied this question.

synapsesocial.com/papers/6a5331064f7abc118aded6a2https://doi.org/10.1159/000553139
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Neurocognitive disorders, depression, and associated factors in younger and older adults from an urban‐marginalized area of Peru2025 · 2 citations
  2. 2Air pollution and cognitive outcomes in older adults: a systematic review2026
  3. 3Association Between Long-Term Exposure to Ambient Air Pollution and the Risk of Mild Cognitive Impairment in a Chinese Urban Area: A Case-Control Study2024 · 3 citations
  4. 4A study about the impact of indoor air pollution on cognitive function among middle-aged and older adult people in India2024 · 6 citations
  5. 5Long-term exposure to air pollution and cognitive aging: Findings from a United States cohort of older adults.2025