The prevalence of dementia within the United States is declining amongst people over age 65, falling dramatically from 2000 to 2016, a RAND Corp. research says.
Nationbroad, the age-adjusted prevalence of dementia fell to eight.5% of people over age 65 in 2016, down by close toly one-third from 12.2% of people over age 65 in 2000, according to the researchers.
Females are extra likely to stay with dementia, however the intercourse difference has narrowed, the research discovered.
Amongst males, the prevalence of dementia fell by 3.2 percentage factors, from 10.2% to 7.0% over the 16-year span. The lower was larger amongst girls, down 3.9 percentage factors, from 13.6% to 9.7% … the researchers cited “developing evidence” that age-adjusted dementia prevalence has been declining in developed countries, possibly because of rising levels of education, a reduction in smoking and wagerter deal withment of key automobilediovascular threat factors equivalent to hypertension…
(Péter Hudomiet, the research’s lead writer) mentioned it’s additionally possible that, given numerous studies being launched on steps to take to keep away from dementia, among the decline could also be attributed to people heeding such recommendation.
“Additionally it is plausible that other behavior factors, equivalent to smoking [cessation], cognitive activities, social activities, and so forth., performed a job,” he mentioned.
Trends in inequalities in the prevalence of dementia in the United States (PNAS). From the Summary:
- This paper presents estimates of the prevalence of dementia within the United States from 2000 to 2016 by age, intercourse, race and ethnicity, education, and a meapositive of lifetime earnings, utilizing information on 21,442 individuals aged 65 and outdateder … We developed a longitudinal, latent-variready model of cognitive status, which we estimated utilizing the Markov Chain Monte Automobilelo methodology … The age-adjusted prevalence of dementia decreased from 12.2% in 2000 (95% CI, 11.7 to 12.7%) to eight.5% in 2016 (7.9 to 9.1%) within the 65+ population, a statistically significant decline of three.7 percentage factors or 30.1%. Females are extra likely to stay with dementia, however the intercourse difference has narrowed. Within the male subsample, we discovered a reduction in inequalities throughout education, earnings, and racial and ethnic teams; amongst females, these inequalities additionally declined, however much less robustly. We noticed a substantial enhance within the level of education between 2000 and 2016 within the sample. This compositional change can clarify, in a statistical sense, about 40% of the reduction in dementia prevalence amongst males and 20% amongst girls, the placeas compositional modifications within the outdateder population by age, race and ethnicity, and automobilediovascular threat factors mattered much less.