ArticleThe Journal of allergy and clinical immunology2024
Alzheimer incidence and prevalence with and without asthma: A Medicare cohort study.
Article in The Journal of allergy and clinical immunology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.
- Population attributable fractions of a wide range of peripheral diseases for the burden of dementia.Nature human behaviour · 2026Pooled it
- Unknotting the nexus of asthma and neuroinflammation: from brain network alterations to therapeutic implications.Journal of neuroinflammation · 2026Review
- Association between asthma and changes in brain cortical structure: a Mendelian randomization study.BMC pulmonary medicine · 2026Article
- Assessing the comorbidity between asthma and depression through polygenic risk scoring and time-to-event models.BMC medicine · 2026Article
- Acupuncture Modulation of the Lung-Brain Axis in Alzheimer's Disease: Mechanisms and Therapeutic Perspectives.Brain sciences · 2025Review
- Asthma and COPD Beyond the Airways: Exploring Neurocognitive Links Through NF-κB Subunits c-Rel and p65.International journal of molecular sciences · 2025Article
- Regional brain structural alterations in reward and salience networks in asthma.Brain, behavior, and immunity · 2025Article
- Asthma as a Modifiable Risk Factor for Dementia and Neurodegeneration: A Systematic Review.Cureus · 2025Review
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
Abstract
backgroundInternational data suggest that asthma, like other inflammatory diseases, might increase Alzheimer disease (AD) risk.
objectiveWe sought to explore risk pathways and future mitigation strategies by comparing diagnostic claims-based AD incidence and prevalence among US patients with asthma with those without asthma.
methodsThis cohort study included a national Medicare 20% random sample (2013-2015). Adult patients with asthma with more than 12 months continuous Medicare were compared with subjects without asthma overall and as matched. Asthma was defined by 1 inpatient or 2 outpatient codes for asthma. The main outcomes were 2-year incident or prevalent AD defined by International Classification of Diseases, Ninth Revision code 331.0 or Tenth Revision code G30.0, G30.1, G30.8, or G30.9.
resultsAmong 5,460,732 total beneficiaries, 678,730 patients were identified with baseline asthma and more often identified as Black or Hispanic, were Medicaid eligible, or resided in a highly disadvantaged neighborhood than those without asthma. Two-year incidence of AD was 1.4% with asthma versus 1.1% without asthma; prevalence was 7.8% versus 5.4% (both P ≤ .001). Per 100,000 patients over 2 years, 303 more incident AD diagnoses occurred in those with asthma, with 2,425 more prevalent cases (P < .001). Multivariable models showed that asthma had greater odds of 2-year AD incidence (adjusted odds ratio, 1.33 [95% CI, 1.29-1.36]; matched 1.2 [95% CI, 1.17-1.24]) and prevalence (adjusted odds ratio, 1.48 [95% CI, 1.47-1.50]; matched 1.25 [95% CI, 1.22-1.27]).
conclusionsAsthma was associated with 20% to 33% increased 2-year incidence and 25% to 48% increased prevalence of claims-based AD in this nationally representative US sample. Future research should investigate risk pathways of underlying comorbidities and social determinants as well as whether there are potential asthma treatments that may preserve brain health.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.