Background
Economic food insecurity tools are used to detect need for assistance in the general population. However, in older adults, food insecurity may also be due to factors other than economic, such as physical inability to shop or cook.
Objectives
To determine: 1) the proportion of older adults in the U.S. who experience physical and/or economic food insecurity; 2) differences in characteristics, diet quality, chronic conditions and depression by economic and/or physical food insecurity; 3) the relationship of physical and economic food insecurity with diet quality and with depression.
Methods
Data from adults ages 60 and older of the National Health and Nutrition Examination Survey (2013–2018) were used. Groups were created based on economic food security (measured using the USHFSS Module) and physical food security (measured using questions evaluating ability to shop and cook). Depression, Healthy Eating Index score (HEI-2015), and socioeconomic characteristics were compared by food security group. Rao-Scott Chi-squares were used to test for significant differences between categorical variables and t-tests for continuous variables. Associations between food security status, HEI-2015, and depression score were examined using linear regression analysis.
Results
A quarter (25.0%) of older adults had physical difficulty accessing food but were not living in economically food insecure households. Those who lived in economically food insecure households and also had physical difficulties accessing food had the lowest mean HEI-2015 score (51.7) and highest mean depression score (6.9); both were significantly lower from the mean scores of those who lived in food secure households (HEI-2015 = 57.3, depression = 2.1, P < 0.01).
Conclusions
Considering physical ability to shop for and prepare food when measuring food insecurity in older adults can help identify those who may need dietary and mental health support the most, and those who need food assistance but would otherwise be missed if only measuring economic access.