Special Supplemental Nutrition Program for Women, Infants, and Children Participant Grocery Store Purchases During the COVID-19 Pandemic in North Carolina

Overview

Journal Curr Dev Nutr

Specialty Nutritional Sciences

Date 2024 Mar 5

PMID 38440362

Authors

Emily W Duffy

Shu Wen Ng

Maxime Bercholz

Cassandra R Davis

Molly De Marco

Marissa G Hall

Joanna Maselko

Lindsey Smith Taillie

Affiliations

Soon will be listed here.

Abstract

Background: Families participating in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) experienced barriers to accessing healthy food during the COVID-19 pandemic, but we do not yet understand how WIC participant food purchases shifted during the pandemic.

Objectives: We aimed to describe the association between the initial shock of the pandemic in March 2020 and WIC shoppers' food purchases and changes in purchases before and during the pandemic at a top grocery chain and examine differences in these relationships by duration of WIC use.

Methods: We used longitudinal food transaction data from WIC shoppers ( = 2,989,116 shopper-month observations from 175,081 unique WIC shoppers) from 496 stores in a top grocery store chain in North Carolina between October 2019 and May 2021. We used an interrupted time series design to describe the following: ) the relationship between the initial shock of the pandemic and WIC shopper food purchases and ) differences in purchases before and during the pandemic. To assess differences in purchases between shoppers consistently using WIC electronic benefit transfer (EBT) cards and shoppers starting or stopping WIC EBT use during the pandemic, we used models stratified by WIC group. Primary outcomes were share (%) of total calories purchased from fruits, vegetables, nuts, and legumes (FV), processed foods, and sugar-sweetened beverages (SSBs).

Results: We observed small decreases in the share of total calories from FV (-0.4%) and small increases in the share of calories from processed food (1.1%) and SSBs (0.5%) purchased at this retailer when comparing the pre and post March 2020 periods. Compared with shoppers that started or stopped using WIC benefits during the pandemic, shoppers that used WIC benefits consistently had slightly higher FV and lower processed food and SSB purchases at this retailer.

Conclusions: Future studies should examine whether additional supports for nutrient-dense food choices may be needed for families with low incomes in public health emergencies.

References

Bennett G, Young E, Butler I, Coe S . The Impact of Lockdown During the COVID-19 Outbreak on Dietary Habits in Various Population Groups: A Scoping Review. Front Nutr. 2021; 8:626432. PMC: 7969646. DOI: 10.3389/fnut.2021.626432. View

Bhaskaran K, Gasparrini A, Hajat S, Smeeth L, Armstrong B . Time series regression studies in environmental epidemiology. Int J Epidemiol. 2013; 42(4):1187-95. PMC: 3780998. DOI: 10.1093/ije/dyt092. View

Golley R, Smithers L, Mittinty M, Emmett P, Northstone K, Lynch J . Diet quality of U.K. infants is associated with dietary, adiposity, cardiovascular, and cognitive outcomes measured at 7-8 years of age. J Nutr. 2013; 143(10):1611-7. DOI: 10.3945/jn.112.170605. View

Han E, Powell L . Consumption patterns of sugar-sweetened beverages in the United States. J Acad Nutr Diet. 2012; 113(1):43-53. PMC: 3662243. DOI: 10.1016/j.jand.2012.09.016. View

Gago C, Colchamiro R, May K, Rimm E, Kenney E . Caregivers' Perceived Impact of WIC's Temporary Cash-Value Benefit (CVB) Increases on Fruit and Vegetable Purchasing, Consumption, and Access in Massachusetts. Nutrients. 2022; 14(23). PMC: 9739164. DOI: 10.3390/nu14234947. View

Martinez C, Ritchie L, Lee D, Tsai M, Anderson C, Whaley S . California WIC Participants Report Favorable Impacts of the COVID-Related Increase to the WIC Cash Value Benefit. Int J Environ Res Public Health. 2022; 19(17). PMC: 9518089. DOI: 10.3390/ijerph191710604. View

Lauren B, Silver E, Faye A, Rogers A, Woo-Baidal J, Ozanne E . Predictors of households at risk for food insecurity in the United States during the COVID-19 pandemic. Public Health Nutr. 2021; 24(12):3929-3936. PMC: 8207551. DOI: 10.1017/S1368980021000355. View

Chen S, Feng Z, Yi X . A general introduction to adjustment for multiple comparisons. J Thorac Dis. 2017; 9(6):1725-1729. PMC: 5506159. DOI: 10.21037/jtd.2017.05.34. View

Duffy E, Vest D, Davis C, Hall M, De Marco M, Ng S . "I Think That's the Most Beneficial Change That WIC Has Made in a Really Long Time": Perceptions and Awareness of an Increase in the WIC Cash Value Benefit. Int J Environ Res Public Health. 2022; 19(14). PMC: 9324401. DOI: 10.3390/ijerph19148671. View

10.

Andreyeva T, Tripp A . The healthfulness of food and beverage purchases after the federal food package revisions: The case of two New England states. Prev Med. 2016; 91:204-210. DOI: 10.1016/j.ypmed.2016.08.018. View

11.

Whaley S, Anderson C, Tsai M, Yepez C, Ritchie L, Au L . Increased WIC Benefits for Fruits and Vegetables Increases Food Security and Satisfaction Among California Households with Young Children. J Acad Nutr Diet. 2023; 123(10):1440-1448.e1. DOI: 10.1016/j.jand.2023.05.018. View

12.

Halverson M, Karpyn A . WIC Participants' Perceptions of the Cash-Value Benefit Increase during the COVID-19 Pandemic. Nutrients. 2022; 14(17). PMC: 9460143. DOI: 10.3390/nu14173509. View

13.

Vercammen K, Grummon A, Zatz L, Gago C, Blocksidge M, Hua S . A Descriptive Analysis of Redemption Patterns by Vendor Type Among: WIC Participants in Massachusetts. J Acad Nutr Diet. 2022; 123(4):626-636.e2. PMC: 10187795. DOI: 10.1016/j.jand.2022.09.011. View

14.

Morris E, Quinn E, Rose C, Spiker M, OLeary J, Otten J . Insights from Washington State's COVID-19 Response: A Mixed-Methods Evaluation of WIC Remote Services and Expanded Food Options Using the RE-AIM Framework. J Acad Nutr Diet. 2022; 122(12):2228-2242.e7. PMC: 8940760. DOI: 10.1016/j.jand.2022.03.013. View

15.

Borger C, Paolicelli C, Sun B . Duration of Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) Participation is Associated With Children's Diet Quality at Age 3 Years. Am J Prev Med. 2022; 62(6):e343-e350. DOI: 10.1016/j.amepre.2021.12.019. View

16.

Weinfield N, Borger C, Au L, Whaley S, Berman D, Ritchie L . Longer Participation in WIC Is Associated with Better Diet Quality in 24-Month-Old Children. J Acad Nutr Diet. 2020; 120(6):963-971. DOI: 10.1016/j.jand.2019.12.012. View

17.

Anderson C, Martinez C, Ritchie L, Paolicelli C, Reat A, Borger C . Longer Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) Participation Duration Is Associated with Higher Diet Quality at Age 5 Years. J Nutr. 2022; 152(8):1974-1982. DOI: 10.1093/jn/nxac134. View

18.

McElrone M, Zimmer M, Anderson Steeves E . A Qualitative Exploration of Predominantly White Non-Hispanic Tennessee WIC Participants' Food Retail and WIC Clinic Experiences During COVID-19. J Acad Nutr Diet. 2021; 121(8):1454-1462. DOI: 10.1016/j.jand.2020.12.011. View

19.

Au L, Whaley S, Hecht C, Tsai M, Anderson C, Chaney A . A Qualitative Examination of California WIC Participants' and Local Agency Directors' Experiences during the Coronavirus Disease 2019 Pandemic. J Acad Nutr Diet. 2022; 122(12):2218-2227.e21. PMC: 9259507. DOI: 10.1016/j.jand.2022.07.003. View

20.

Wambogo E, Ansai N, Ahulwalia N, Ogden C . Fruit and Vegetable Consumption Among Children and Adolescents in the United States, 2015-2018. NCHS Data Brief. 2020; (391):1-8. View