Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China.
National Health Commission (NHC) Key Laboratory of Health Economics and Policy Research, Shandong University, Jinan 250012, China.
Nutrients. 2023 Apr 29;15(9):2147. doi: 10.3390/nu15092147.
In view of the rapidly accelerating aging process in China, this study looked at the associations between vegetables and fruits intake pattens and cognitive function among the oldest old in China using the genetic sub study from the Chinese Longitudinal Healthy Longevity Survey (CLHLS).
This study screened respondents who participated in all four surveys of longitudinal data from the CLHLS, and a total of 2454 participants were ultimately included. The relationships of cognitive function with vegetables and fruits intake patterns were examined using Generalized-estimating equations.
The prevalence range of mild cognitive impairment (MCI) was 14.3% to 16.9% at T1 to T3 and 32.7% at T4. There was a significant increase in the prevalence of MCI from T1 to T4 (β = 0.054; 95% CI, 0.037 to 0.070; 0.001; adjusted). The V+/F+ pattern significantly improved cognitive function in Chinese older adults compared with the V-/F- pattern (OR, 1.026; 95% CI, 1.001-1.053; < 0.05).
Older adults who frequently consume both fruits and vegetables experience a reduction in MCI risk relative to those consuming these food groups infrequently-emphasizing the critical importance of the regular intake of both fruits and vegetables in maintaining cognitive function.
鉴于中国老龄化进程的迅速加快，本研究利用中国长寿纵向研究（CLHLS）的遗传子研究，考察了中国高龄老年人蔬菜和水果摄入模式与认知功能之间的关系。
本研究筛选了参加 CLHLS 所有四次纵向数据调查的受访者，最终共纳入 2454 名参与者。使用广义估计方程检查认知功能与蔬菜和水果摄入模式的关系。
T1 至 T3 时轻度认知障碍（MCI）的患病率范围为 14.3%至 16.9%，T4 时为 32.7%。MCI 的患病率从 T1 到 T4 呈显著上升趋势（β=0.054；95%CI，0.037 至 0.070；<0.001；调整后）。与 V-/F-模式相比，V+/F+模式显著改善了中国老年人的认知功能（OR，1.026；95%CI，1.001-1.053；<0.05）。
与不常食用这些食物组的老年人相比，经常同时食用水果和蔬菜的老年人发生 MCI 的风险降低，这强调了经常摄入这两种食物对维持认知功能的重要性。
