APOE ε4 Modifies Effect of Residential Greenness on Cognitive Function among Older Adults: A Longitudinal Analysis in China.

ABSTRACT: We tested whether the protective effects of residential greenness on cognitive function differ by APOE ε4 status by using the Chinese Longitudinal Healthy Longevity Survey (CLHLS). We calculated Normalized Difference Vegetation Index (NDVI) using 500 m radii around residential addresses to measure greenness, and the Mini-Mental State Examination (MMSE) to assess cognitive function. We dichotomized the participants into APOE non-ε4 carriers, and APOE ε4 carriers. We applied the generalized estimating equations (GEE) to examine the association between baseline annual average NDVI, APOE ε4 carrier status, and cognitive impairment. Among 6,994 participants, 19.30% were APOE ε4 carriers. Compared to APOE ε4 non-carriers, the APOE ε4 carriers had a 15% higher odds of cognitive impairment (OR: 1.

SUBMITTER: Zhu A 

PROVIDER: S-EPMC6952401 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature