What does the research say about preexisting dementia?

Preexisting dementia

There is 1 paper on preexisting dementia in aging research: 1 observational study in people. The newest story, Nov 6, 2026: “Bladder drugs presumed safer not linked to lower dementia risk”.

Disease

1 paper studies it16 more mention it1 finding

1 new paper in 30 daysSee all 17 papers on preexisting dementia

“Prior dementia was less prevalent in MC (adjusted odds ratio [aOR]: 0.73; 95% CI: 0.65-0.82).”

Microscopic colitis is associated with an increased risk of dementia in a Swedish populationJournal of internal medicine2025doi:10.1111/joim.70046

Humans1

Associations

Microscopic colitis

downin humans1

1 study

Microscopic colitis is associated with preexisting dementia in humans (Compared with population-based comparators; matched case-control analysis) (aOR 0.73, 95% CI 0.65–0.82).
“Prior dementia was less prevalent in MC (adjusted odds ratio [aOR]: 0.73; 95% CI: 0.65-0.82).”
HumansCompared with population-based comparators; matched case-control analysis
Microscopic colitis is associated with an increased risk of dementia in a Swedish population
Journal of internal medicineNov 26, 2025

Latest

3 papers in 12 months

Journal of Internal MedicineNov 26

Microscopic colitis is associated with an increased risk of dementia in a Swedish population

Cohort study of 61,710 peopleVascular dementia

Paper

JAMA Network OpenNov 6

Bladder drugs presumed safer not linked to lower dementia risk

Estimated 10-year dementia risk was 20.0% with mirabegron or vibegron, compared with 18.1% with drugs classified as high-risk anticholinergics.Estimated 10-year dementia risk was 20.0% with mirabegron or vibegron, compared with 18.1% with drugs classified as high-risk anticholinergics.

Cohort · 830,393 peopleIncident dementia