Abstract 16943: Obesity Moderates the Relationship Between Depressive Symptoms and Diet Quality in Overweight and Obese Adults in Rural Kentucky
Background: Although depressive symptoms have been linked to poor diet quality, little is known about this relationship among overweight and obese adults in rural Kentucky where rates of cardiovascular disease (CVD) are high. Identifying the impact of depressive symptoms on diet quality by obesity status may aid in identifying those at highest risk for CVD due to poor dietary habits.
Purpose: To determine if obesity moderates the association between depressive symptoms and diet quality in overweight and obese rural adults at high risk for CVD.
Methods: Rural adults in Kentucky (n=948; age=53±15; 73% female; 96% Caucasian; body mass index [BMI]=34±7; 67% obese) completed an assessment of depressive symptoms using the 9-item Patient Health Questionnaire and diet quality using a food frequency questionnaire that generated the 2005 Healthy Eating Index score. They were grouped into overweight (BMI 25-29.99kg/m2) and obese (BMI ≥30kg/m2) groups. Multiple linear regression was used to determine the moderation effect by entering the interaction term of depressive symptoms and obesity level.
Results: Depressive symptom scores were higher in obese adults than overweight adults (5.9 ± 4.8 vs. 4.6 ± 4.1, p<0.001). Depressive symptoms predicted poor diet quality (B= -0.618, p<0.001, R2=0.019). The interaction between depressive symptoms and obesity status was significant (Figure 1) in predicting diet quality and indicated the relationship between depressive symptoms and poor diet quality was stronger in the overweight group than obese group.
Conclusion: Although obese rural Kentuckians have more depressive symptoms, the negative impact of depressive symptoms on diet quality is stronger among those who are overweight. Treating depressive symptoms may facilitate healthy eating in this population, particularly those who are overweight.
Author Disclosures: D.A. Abshire: None. T.A. Lennie: Research Grant; Significant; NIH NINR. M.L. Chung: None. M.J. Biddle: None. D.K. Moser: None.
- © 2015 by American Heart Association, Inc.