Association of Living in a Food Desert With Pregnancy Morbidity.

Objective: To evaluate whether women living in areas deemed food deserts had higher rates of pregnancy morbidity, specifically preeclampsia, gestational hypertension, gestational diabetes, prelabor rupture of membranes, preterm labor, than women who did not live in food deserts at the time of their pregnancy and delivery.

Methods: This was a retrospective observational study in which we reviewed electronic medical records of all patients who delivered at Loyola University Medical Center in Maywood, Illinois in 2014. The Economic Research Service of the U.S. Department of Agriculture publishes the Food Access Research Atlas, which presents a spatial overview of food access indicators for low-income and other Census tracts using different measures of supermarket accessibility. A spatial join between the Food Access Research Atlas and patient coordinates was performed to identify patient point locations and determine whether each patient was located within or outside of a food desert.

Results: Data for 1,003 deliveries at Loyola University Medical Center in 2014 were provided by the Loyola University Chicago Clinical Research Database. Two deliveries were excluded owing to inability to map address coordinates; thus 1,001 deliveries were analyzed. Of the 1,001 patients, 195 (19.5%) women were designated to food deserts. Multivariable analysis was done by adjusting for age, race, and medical insurance class. Having at least one morbid condition was the only variable that demonstrated a significant association with the food desert in multivariable analyses (47.2% vs 35.6%) (odds ratio [OR] 1.62, 95% CI 1.18-2.22) (adjusted OR 1.64, 95% CI 1.18-2.29).

Conclusion: The odds of having at least one of the studied morbid conditions in pregnancy were greater for patients living in a food desert. As there is an association of morbidity in pregnancy with living in a food desert, intervention trials to improve the built food environment or mitigate the effect otherwise are needed.