Household food insecurity and in-utero and early life smoke exposure: Data from NHANES 2003-2016.

In-utero, postnatal, and childhood smoke exposure are associated with adverse health consequences, and examining factors related to smoke exposure during these vulnerable periods are critical to inform efforts that promote maternal and child health. This study included pregnant and postpartum women aged 20-44 years and children aged 3-12 years from National Health and Nutrition and Examination Survey (NHANES) 2003-2016 cycles. Logistic regression examined association of household food insecurity with firsthand (FHS) and secondhand (SHS) exposure among pregnant and postpartum women, and SHS exposure among children, based on serum cotinine and respondent-reports. Very low household food security was significantly associated with increased odds of cotinine-based FHS exposure among pregnant (OR(95%CI) = 5.19 (1.75, 15.39)) and postpartum women (OR(95%CI) = 4.75(1.66, 13.57)). Non-smoking, postpartum women from very low food secure households also had significantly greater odds of cotinine-based SHS exposure (OR(95%CI) = 7.40 (2.08, 26.37)) than those from food secure households. Using respondent-reported smoking status, low food security in pregnant and postpartum women was significantly related to increased odds of FHS exposure (OR(95% CI) = 3.75(1.52, 9.23)). Further, children from marginal, low and very low food secure households had significantly higher odds of SHS exposure compared to those from food secure households. Results imply the co-occurrence food insecurity and in-utero and early life smoke exposure.

Associations Between Diet Quality and Dental Caries in Low-Income Women.

BACKGROUND: The Healthy Eating Index 2015 (HEI-2015) is a diet quality measure of conformity of diet to the 2015-2020 Dietary Guidelines for Americans. This tool is being used increasingly to assess relationships between diet quality and health outcomes. OBJECTIVE: The objective of this research was to investigate the relationships between diet quality as measured by HEI-2015 total and component scores and Decayed, Missing, Filled Teeth Index (DMFT) scores in low-income women. DESIGN: In this cross-sectional study, low-income women were administered questionnaires and dental examinations on 1 occasion. The questionnaires included demographics, food frequency, and oral health questionnaires, and the US Adult Food Security Survey Module. PARTICIPANTS/SETTINGS: Participants in this study were part of a larger research project-Impact of Diet and Nutrition on Dental Caries in Low-Income Women. For the larger research project, a total of 255 women aged 18 to 50 years with annual income <250% of the Federal Poverty Line were recruited from low-income housing units in Central Texas from June 1, 2018 to December 30, 2018. Of the 255 women, 28 underwent dental screenings but did not complete the questionnaires. Seven women were excluded because energy intakes exceeded 4,000 kcal/d. The final sample for the current analysis was 220 women who had completed their dental examinations and provided complete data. MAIN OUTCOME MEASURES: The exposure was diet quality and the main outcome measure was DMFT score. STATISTICAL ANALYSIS: Dental caries scores were calculated by addition of decayed, missing, and filled teeth. Descriptive statistics were conducted on the variables of age, race and ethnicity, education, annual household income, food security status, and frequency of brushing and flossing. Linear regression analysis was used to discern relationships between diet quality-as assessed by HEI-2015 total and component scores-and dental caries experience, adjusting for the covariates. RESULTS: Caries in permanent teeth was present in 95.6% of participants. HEI-2015 total scores were inversely associated with dental caries. An increase of 1 point in total HEI-2015 score was accompanied by a decrease in DMFT score by 0.569 (P = .001). In addition, component scores for total vegetables (P = .001), greens and beans (P = .002), dairy (P = .004), refined grains (P = .001), and added sugars (P = .001) were inversely related to DMFT scores. CONCLUSIONS: This research suggests that diet quality, as measured by the HEI-2015, is inversely associated with DMFT scores in low-income women. Future research is needed to investigate the influence of diet and nutrition on the integrity of oral health.

Role of Dental Nutrition Knowledge and Socioecological Factors in Dental Caries in Low-Income Women.

Dental caries is a chronic oral condition that disproportionately affects low-income women. The aim of this research was to investigate relationships between dental nutrition knowledge, socioecological factors, and prevalence of dental caries in low-income women. This quantitative cross-sectional study involved 220 women who were recruited from Central Texas. Participants completed demographics, the Dental Nutrition Knowledge Competency Scale, United States Adult Food Security Survey Module, and the Multidimensional Home Environment Scale. Two dentists measured dental caries via the Decayed, Missing, Filled Teeth Index. Regression models were conducted to test the effects of dental nutrition knowledge and Multidimensional Home Environment Scale factors on dental caries. Finally, mediation analysis explored relationships between dental nutrition knowledge and dental caries, adjusting for Multidimensional Home Environment Scale scores. Results showed that dental nutrition knowledge and Multidimensional Home Environment Scale score were significantly associated with dental caries. Subscales of self-efficacy for eating healthy, oral hygiene practices, emotional eating, availability of unhealthy foods at home, and social support were related to dental caries. The relationship between dental nutrition knowledge and caries was mediated by Multidimensional Home Environment Scale scores. This research emphasizes the role of dental nutrition knowledge and socio-ecological factors on prevalence of dental caries. Public health interventions to reduce dental caries should involve strategies that increase dental nutrition knowledge and encourage behavior change in low-income populations.

Association of loss of Supplemental Nutrition Assistance Program benefits with food insecurity and dietary intake of adults and children.

BACKGROUND: Supplemental Nutrition Assistance Program (SNAP) disenrollment among income-eligible households could limit their ability to access food. OBJECTIVES: To assess the association of loss of SNAP benefits on food security status and dietary intake of household members, using 2011-2016 NHANES data. METHODS: SNAP participation status among those with a household income ≤130% of the federal poverty level was categorized as 1) current participants, 2) former participants with benefits cut off in the past year, and 3) former participants with benefits cut off for more than a year. Logistic regression examined associations of SNAP participation status with odds of household (n = 7387), adult (n = 7387), and child (n = 5898) food security. Linear regression examined associations of participation status with Healthy Eating Index-2015 (HEI-2015) total and component scores in adults (n = 2784) and children/adolescents (n = 2553). RESULTS: Former SNAP participants with benefits cut off in the past year had greater odds of severe household (OR: 2.18; 95% CI: 1.25, 3.78) and adult (OR: 2.09; 95% CI: 1.24, 3.54) food insecurity compared with current participants. Benefit cutoff in the past year was significantly related to low child food security (OR: 1.80; 95% CI: 1.04, 3.11) and lower child/adolescent greens and beans score (estimate: -0.40; SE: 0.18). Loss of benefits for more than a year was significantly associated with increased marginal child food security odds (OR: 2.07; 95% CI: 1.23, 3.47), lower adult dairy score (estimate: -0.63; SE: 0.24), and lower child/adolescent greens and beans (estimate: -0.34; SE: 0.16), whole grains (estimate: -0.50; SE: 0.21), and dairy scores (estimate: -0.93; SE: 0.29). CONCLUSIONS: This study suggests that loss of benefits may increase household food insecurity. Although child/adolescent intakes of certain HEI-2015 adequacy components were lower among former SNAP participants, overall diet quality score did not differ. Findings collectively imply the need for policies that protect households from the adverse effects of benefits loss.

Global diversity of dietary intakes and standards for zinc, iron, and copper.

BACKGROUND: The essentiality of trace elements in human diets is well recognized and adequate levels are a critical component of optimal health. To date, public health efforts have focused primarily on macronutrients or trace minerals that are easily analyzed. The goal of this research is to provide assessment of the dietary standards developed for Zn, Fe, and Cu in 100+ developed, marginal, and developing countries. We summarize the current recommendations and changes from the last decade, categorize and provide scientific basis for values established, factors that affect requirements, and current global challenges. METHODS: The electronic databases of Google Scholar, PubMed, Embase, Web of Science and Cochrane Library were searched using the keywords "trace minerals," "micronutrients, ""zinc," "iron," "copper," "dietary standards" and "recommendations." A total of 123 studies published from 1965 to 2019 were included. RESULTS: The World Health Organization (WHO) has established dietary standards to address nutrient deficiencies, prevent infections and ensure basic metabolic functions; these are utilized by most developing countries. Developed countries or their alliances have established values similar to or higher than the WHO, primarily for promotion of optimal health and well-being. Transitional countries are more concerned with issues of bioavailability, food security and undernutrition. Globally, Zn and Cu recommendations are lower in women than in men; Fe requirements are higher to compensate for menstrual losses. Important considerations in establishing guidelines for these minerals include bioaccessibility, dietary practices and restrictions, food processing, interactions, and chemical forms. The global challenges of the triple burden of malnutrition, hidden hunger, increased consumption of ultra-processed foods and obesity have been associated with Zn, Fe, and Cu deficiencies. CONCLUSION: This research provides public policy and health professionals evidenced-based information useful for the establishment of dietary standards world-wide.

Development and validation of the Dental Nutrition Knowledge Competency Scale for low-income women.

OBJECTIVE: To develop and validate a Dental Nutrition Knowledge Competency Scale to assess dental health-related nutrition knowledge of low-income women. DESIGN: This is a cross-sectional study. A literature search for foods/dietary practices related to dental caries was conducted and the items were incorporated into an initial questionnaire. A panel of ten nutrition experts evaluated it for its content, readability and relevance, and a focus group of six low-income women determined its readability and comprehension. Then the questionnaire was administered to 150 low-income women. Construct validity was evaluated by item difficulty, item discrimination and factor analysis. Internal consistency reliability was tested via Cronbach's α. In a sub-sample of forty women, test-retest reliability was established. Paired-sample t tests were conducted to examine differences between test scores at the two time points, 2 weeks apart. SETTINGS: Community centres in low-income housing in Central Texas, USA. PARTICIPANTS: A total of 150 low-income women, aged 18-50 years; annual household income <250 % of the federal poverty level. RESULTS: Item difficulty and discrimination analysis resulted in elimination of eight questions. Factor analysis identified twenty-four items that loaded on three factors related to knowledge. These included foods/dietary practices that affect dental caries, added sugars in foods and on food labels, and recommended frequency of oral hygiene practices. The subscales and the completed scale exhibited good internal consistency (mean 0·7 (sd 0·97)) and test-retest reliability (mean 0·8 (sd 0·013)). CONCLUSIONS: The Dental Nutrition Knowledge Competency Scale is a validated and reliable instrument to assess nutrition knowledge related to dental health in low-income women.

Do food expenditure patterns of Supplemental Nutrition Assistance Program households meet Thrifty Food Plan recommendations?

The Supplemental Nutrition Assistance Program (SNAP) increases the food purchasing power of its clients by distribution of monthly benefits. The goal of this study was to determine if food expenditure patterns of SNAP households meet the Thrifty Food Plan (TFP) recommendations. Results indicated that greater TFP-adjusted total grocery expenditure was significantly associated with greater spending on low fat dairy, vegetables, whole grains and fruits relative to the recommendations. Future research could focus on psychosocial factors associated with inadequate grocery spending among SNAP households.

Quantifying the association between acute leukemia and serum zinc, copper, and selenium: a meta-analysis.

Acute leukemia is a clonal malignant disorder that occurs when immature blast cells accumulate in bone marrow. Zinc (Zn) and copper (Cu) are related to normal lymphocyte maturation and immune function regulation. Selenium (Se) is protective against oxidative damage. The aim of this meta-analysis is to statistically synthesize results from studies that have investigated the levels of Zn, Cu, and Se in acute leukemia patients. The effect size, delta, was used to standardize the raw data. The robust variance estimation (RVE) method was performed to measure the pooled effect size and variance. Results suggest significant negative differences for levels of serum Zn (p < .05, delta = -1.21; 95% CI, -2.13--0.28) and Se (p < .05, delta = -1.84; 95% CI, -3.39--0.29) and significantly positive differences between serum Cu levels (p < .01, delta = 1.94; 95% CI, 1.02-2.87) in acute leukemia, as compared to the controls.

Zinc, Copper, and Iron in Oral Submucous Fibrosis: A Meta-Analysis.

Oral submucous fibrosis (OSF) is a potentially malignant disorder which causes fibrosis and inflammation of the oral mucosa. Studies have reported altered levels of trace elements in oral submucous fibrosis subjects, but findings have been inconsistent. The objective of this research is to perform a meta-analysis to summarize studies that report zinc (Zn), copper (Cu), and iron (Fe) in patients, with and without OSF. A literature search of Embase, PubMed, Cochrane Library, and Web of Science electronic databases was conducted for studies up to January 2017. A total of 34 reports met the inclusion criteria. The standardized mean difference was utilized as the effect size. The robust variance estimation method was chosen to handle dependency of multiple related outcomes in meta-analysis. There was a significant increase in the levels of Cu (effect size = 1.17, p value < 0.05, 95% confidence interval (CI): 0.164-2.171) and a significant decrease in levels of Zn (effect size = -1.95, p value < 0.05, 95% CI: -3.524 to -0.367) and Fe (effect size = -2.77, p value < 0.01, 95% CI: -4.126 to -1.406) in OSF patients. The estimation of Zn, Cu, and Fe levels may serve as additional biomarkers in the diagnosis and prognosis of OSF along with the clinical features.

Trace element status in type 2 diabetes: A meta-analysis.

INTRODUCTION: Type 2 diabetes is a chronic metabolic disorder that has been associated with alterations in the status of trace elements, including zinc, copper, iron and manganese. However, clinical studies reporting statuses of these trace elements in type 2 diabetes patients compared to controls have shown conflicting results. OBJECTIVE: This meta-analysis aimed to summarize the existing literature on the statuses of zinc, copper, iron, and manganese in Type 2 diabetes mellitus patients. METHODS: A literature search of Embase, PubMed, EBSCOHost, ScienceDirect, Scopus, Cochrane library and Web of Science electronic databases was conducted to find studies published from 1970 to November 2016 that compared the trace elements of interest between type 2 diabetic patients and healthy controls. Keywords used were type 2 diabetes, diabetes, hyperglycemia, insulin, glucose, HbA1c, trace elements, micronutrients, zinc, manganese, copper, ceruloplasmin, iron and ferritin. The bias corrected Hedges' g, was utilized as the effect sizes. Due to the biological interaction between trace elements, it is important to collectively evaluate the statuses of these minerals in type 2 diabetes. Thus, the robust variance estimation method was chosen to handle dependency between multiple outcomes. RESULTS: A total of 52 studies met the inclusion criteria, amounting to 98 effect sizes. Diabetic patients (n=20183) had significantly lower zinc status when compared to controls (effect size = -1.73, p<0.01); whereas copper (effect size = 1.10, p<0.05) and ferritin levels (effect size = 1.05, p<0.01) were significantly higher. Although not significant, ceruloplasmin (effect size = 1.85, p=0.06) and iron (effect size = 1.42, p=0.06) levels were higher, and manganese (effect size = 0.27, p=0.34) was lower in patients. CONCLUSION: Results from this meta-analysis indicate lower zinc status accompanied by increased copper and ferritin levels in patients with type 2 diabetes when compared to controls.