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Objective: To compare differences across food groups for food cost, energy, and nutrient profiles of 100 items from a cross-sectional survey of 225 stores in 18 counties across the Lower Mississippi Delta of Arkansas, Louisiana, and Mississippi. Methods: Energy, nutrient, and cost profiles for food items were calculated by using Naturally Nutrient Rich methodology and converting price per 100 g edible portion to price per serving. Foods were grouped into 6 food groups. Mean differences were compared with ANOVA. Results: Significant differences existed by food group for each measure. Energy density was highest for fats/oils/sweets, whereas nutrient density was highest for vegetables. Price per serving was lowest for fats/oils/sweets and highest for meats. Conclusions and Implications: Educational messages focusing on a complete diet should consider the role of food costs and provide specific recommendations for increasing nutrient-dense foods by replacing a portion of the meat serving at meals with culturally acceptable lower-cost nutrient-dense foods. (Contains 2 tables.)

Residents of the Lower Mississippi Delta of Arkansas, Louisiana, and Mississippi are at risk for food insecurity since a high proportion of the population live in households with incomes below the poverty level and have reduced access to food and decreased availability of a variety of foods. However, the magnitude of the problem is unknown because presently only nationwide and state estimates of food insecurity are available. Purpose: This study was conducted by the Lower Mississippi Delta Nutrition Intervention Research Consortium to determine the prevalence of household food insecurity, identify high-risk subgroups in the Lower Delta, and compare to national data. Methods: A 2-stage stratified cluster sample representative of the population in 36 counties in the Lower Delta was selected using list-assisted random digit dialing telephone methodology. A cross-sectional telephone survey of 1662 households was conducted in 18 of the 36 counties using the US Food Security Survey Module. Findings: Twenty-one percent of Lower Delta households were food insecure, double the 2000 nationwide rate of 10.5%. Within the Lower Delta, groups with the highest rates of food insecurity were households with income below $15,000, black households, and households with children. The prevalence of hunger in Delta households with white children was 3.2% and in households with black children was 11.0%, compared to nationwide estimates of 0.3% and 1.6%. Conclusions: The Lower Mississippi Delta is characterized by a high prevalence of food insecurity and hunger. Future efforts to identify the household and community determinants of food insecurity to reduce its high prevalence are indicated.

The prevalence of household food security, which reflects adequacy and stability of the food supply, has been measured periodically in the United States and occasionally in high-risk groups or specific regions. Despite a plausible biological mechanism to suggest negative health outcomes of food insecurity, this relation has not been adequately evaluated. This study was conducted in the Lower Mississippi Delta region to examine the association between household food insecurity and self-reported health status in adults. A two-stage stratified cluster sample representative of the population in 36 counties in the Delta region of Arkansas, Louisiana, and Mississippi was selected using list-assisted random digit dialing telephone methodology. After households were selected and screened, a randomly selected adult was interviewed within each sampled household. Data were collected to measure food security status and self-reported mental, physical, and general health status, using the U.S. Food Security Survey Module and the Short Form 12-item Health Survey (SF-12). Data were reported on a sample of 1488 households. Adults in food-insecure households were significantly more likely to rate their health as poor/fair and scored significantly lower on the physical and mental health scales of the SF-12. In regression models controlling for income, gender, and ethnicity, the interaction between food insecurity status and race was a significant predictor of fair/poor health and lower scores on physical and mental health. Household food insecurity is associated with poorer self-reported health status of adults in this rural, high-risk sample in the Lower Mississippi Delta. [ABSTRACT FROM AUTHOR]

Background: Although health literacy has been a public health priority area for more than a decade, the relationship between health literacy and dietary quality has not been thoroughly explored., Objective: To evaluate health literacy skills in relation to Healthy Eating Index (HEI) scores and sugar-sweetened beverage (SSB) consumption while accounting for demographic variables., Design: Cross-sectional survey., Participants/setting: A community-based proportional sample of adults residing in the rural Lower Mississippi Delta., Methods: Instruments included a validated 158-item regional food frequency questionnaire and the Newest Vital Sign (scores range 0 to 6) to assess health literacy., Statistical Analyses Performed: Descriptive statistics, analysis of variance, and multivariate linear regression., Results: Of 376 participants, the majority were African American (67.6%), without a college degree (71.5%), and household income level <$20,000/year (55.0%). Most participants (73.9%) scored in the two lowest health literacy categories. The multivariate linear regression model to predict total HEI scores was significant (R(2)=0.24; F=18.8; P<0.01), such that every 1-point increase in health literacy was associated with a 1.21-point increase in HEI scores, while controlling for all other variables. Other significant predictors of HEI scores included age, sex, and Supplemental Nutrition Assistance Program participation. Health literacy also significantly predicted SSB consumption (R(2)=0.15; F=6.3; P<0.01) while accounting for demographic variables. Every 1 point in health literacy scores was associated with 34 fewer kilocalories per day from SSBs. Age was the only significant covariate in the SSB model., Conclusions: Although health literacy has been linked to numerous poor health outcomes, to our knowledge this is the first investigation to establish a relationship between health literacy and HEI scores and SSB consumption. Our study suggests that understanding the causes and consequences of limited health literacy is an important factor in promoting compliance to the Dietary Guidelines for Americans., (Copyright © 2011 American Dietetic Association. Published by Elsevier Inc. All rights reserved.)

Objective: To determine if measures of diet quality differ between food insecure and food secure adults in a rural high-risk population., Design: Random digit dialing telephone survey of a cross-section of the population designed to collect data on food intake, household demographics, and food security status., Setting: A representative sample of adults who live in 36 counties in the Lower Mississippi Delta region of Arkansas, Louisiana, and Mississippi., Subjects: One thousand six hundred seven adults, both white and African American., Main Outcome Measures: Food security status and diet quality, as defined by adherence to the Healthy Eating Index and Dietary Reference Intakes by determinations from self-reported food intake (1 day intake)., Statistical Analyses: Regression analysis, t tests, Wald statistic, and beta tests were employed., Results: Food secure adults scored higher on Healthy Eating Index than food insecure adults (P=0.0001), but the regression model showed no differences when multiple factors were included. Food secure individuals consistently achieved higher percentages of the Dietary Reference Intakes (specifically Estimated Average Requirements and Adequate Intakes) than food insecure individuals, with the greatest differences seen for vitamin A (P<0.0001), copper (P=0.0009), and zinc (P=0.0022) and very little difference for vitamins C (P=0.68) and E (P=0.32). Both populations consumed diets extremely low in fiber., Conclusions: Food insecurity is associated with lower quality diets in this population. It is acknowledged that serious limitations are associated with the use of one 24-hour recall and for comparison between food intake and assessment of food security. These findings still suggest a pressing need for nutrition interventions to improve dietary intake in these at-risk impoverished individuals.

Objective: To examine the association of household food insecurity with child self- or proxy-reported health-related quality of life (HRQOL)., Design: Cross-sectional telephone survey from January 1, 2000, through June 30, 2000., Participants: Three hundred ninety-nine children who live in 36 counties of the Delta region of Arkansas, Louisiana, and Mississippi., Main Outcome Measures: Household food insecurity status was measured using the US Household Food Security Scale. Child HRQOL was measured by the Pediatric Quality of Life Inventory, QL version 4.0. Analysis Summary statistics, linear and logistic regressions, incorporating survey weights, performed with SUDAAN version 8., Results: Household food insecurity was significantly associated with total child HRQOL (P<.05) and physical function (P<.05), adjusted for child age, ethnicity, gender, and family income. Children aged 3 through 8 years in food insecure households were reported by parents to have lower physical function (P = .001), while children aged 12 through 17 years reported lower psychosocial function (P = .007). Black males in food insecure households reported lower physical function (P<.05) and lower total HRQOL (P<.05)., Conclusions: Children who live in food insecure households have poorer HRQOL. The effect on physical or psychosocial function may differ by age, ethnicity, and gender. Food security should be considered an important risk factor for child health.