J-shaped association between dietary thiamine intake and the risk of cognitive decline in cognitively healthy, older Chinese individuals.
Gen Psychiatr
; 37(1): e101311, 2024.
Article
em En
| MEDLINE
| ID: mdl-38390237
ABSTRACT
Background:
The prospective association of dietary thiamine intake with the risk of cognitive decline among the general older adults remains uncertain.Aims:
To investigate the association between dietary thiamine intake and cognitive decline in cognitively healthy, older Chinese individuals.Methods:
The study included a total of 3106 participants capable of completing repeated cognitive function tests. Dietary nutrient intake information was collected through 3-day dietary recalls and using a 3-day food-weighed method to assess cooking oil and condiment consumption. Cognitive decline was defined as the 5-year decline rate in global or composite cognitive scores based on a subset of items from the Telephone Interview for Cognitive Status-modiï¬ed.Results:
The median follow-up duration was 5.9 years. There was a J-shaped relationship between dietary thiamine intake and the 5-year decline rate in global and composite cognitive scores, with an inflection point of 0.68 mg/day (95% confidence interval (CI) 0.56 to 0.80) and a minimal risk at 0.60-1.00 mg/day of dietary thiamine intake. Before the inflection point, thiamine intake was not significantly associated with cognitive decline. Beyond the inflection point, each unit increase in thiamine intake (mg/day) was associated with a significant decrease of 4.24 (95% CI 2.22 to 6.27) points in the global score and 0.49 (95% CI 0.23 to 0.76) standard units in the composite score within 5 years. A stronger positive association between thiamine intake and cognitive decline was observed in those with hypertension, obesity and those who were non-smokers (all p<0.05).Conclusions:
This study revealed a J-shaped association between dietary thiamine intake and cognitive decline in cognitively healthy, older Chinese individuals, with an inflection point at 0.68 mg/day and a minimal risk at 0.60-1.00 mg/day of dietary thiamine intake.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Gen Psychiatr
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China