Smoking is associated with increased risk for dementia: the HUNT study, Norway.

ABSTRACT:

Background

Smoking is considered a risk factor for dementia. Nevertheless, uncertainty regarding the associations with dementia subtypes and the effects of quitting remains. In this large longitudinal population-based cohort study, we investigated smoking as an independent risk factor for all-cause dementia. Second, we investigated the associations with dementia subtypes.

Methods

We included participants from the Trøndelag Health Study (HUNT) and collected their smoking status at baseline (HUNT2, 1995-97). We assessed cognitive status at follow-up two decades later (HUNT4 70+, 2017-19, N = 8,532) and collected pack-years. We handled missing data with multiple imputations and estimated relative risks (RRs) with Poisson regression after adjustment for covariates and stratifica

SUBMITTER: Myrstad C 

PROVIDER: S-EPMC12821303 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature