Food insecurity is associated with mild cognitive impairment among middle-aged and older adults in South Africa: findings from a nationally representative survey

Koyanagi, Ai and Veronese, Nicola and Stubbs, Brendon and Vancampfort, Davy and Stickley, Andrew and Oh, Hans and Shin, Jae and Jackson, Sarah E. and Smith, Lee and Lara, Elvira (2019) Food insecurity is associated with mild cognitive impairment among middle-aged and older adults in South Africa: findings from a nationally representative survey. Nutrients, 11 (4). p. 749. ISSN 2072-6643

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Official URL: https://doi.org/10.3390/nu11040749

Abstract

There are no studies on the association between food insecurity and mild cognitive impairment (MCI). Thus, cross-sectional, community-based data on individuals aged ≥50 years from the World Health Organization’s Study on Global AGEing and Adult Health (SAGE) conducted in South Africa (2007-2008) were analyzed to assess this association. The definition of MCI was based on the National Institute on Ageing-Alzheimer’s Association criteria. Past 12-month food insecurity was assessed with two questions on frequency of eating less and hunger due to lack of food. Multivariable logistic regression analysis was conducted. The sample consisted of 3,672 individuals aged ≥50 years [mean (SD) age 61.4 (18.3); 56% females]. The prevalence of MCI was 8.5%, while 11.0% and 20.8% experienced moderate and severe food insecurity, respectively. After adjustment for potential confounders, moderate and severe food insecurity were associated with 2.82 (95%CI=1.65-4.84) and 2.51 (95%CI=1.63-3.87) times higher odds for MCI, compared with no food insecurity, respectively. The OR for those aged ≥65 years with severe food insecurity was particularly high (OR=3.87; 95%CI=2.20-6.81). In conclusion, food insecurity was strongly associated with MCI among South African older adults. Future longitudinal research is required to assess whether addressing food insecurity may reduce risk for MCI and subsequent dementia.

Item Type: Journal Article
Keywords: Mild cognitive impairment, Food insecurity, South Africa, Epidemiology
Faculty: Faculty of Science & Technology
Depositing User: Lee Smith
Date Deposited: 26 Mar 2019 16:51
Last Modified: 10 Apr 2019 15:49
URI: http://arro.anglia.ac.uk/id/eprint/704200

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