Exposure Factors Handbook (Post 2011)

Project ID

1854

Category

Other

Added on

April 3, 2012, 9:48 a.m.

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Journal Article

Abstract  OBJECTIVE: To describe feeding practices and food consumption of infants and children participating in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC).

DESIGN: National, cross-sectional analysis of 24-hour dietary recall data from the 2008 Feeding Infants and Toddlers Study.

PARTICIPANTS: Random sample of infants (6-11 months of age), toddlers (12-23 months of age), and preschoolers (24-47 months of age); WIC participants (n = 794) and nonparticipants (n = 2,477).

MAIN OUTCOME MEASURES: Breastfeeding rates, introduction to solids, food consumption.

ANALYSIS: Used weighted descriptive statistics, chi-square tests, and t tests to identify dietary outcomes unique to WIC participants vs nonparticipants.

RESULTS: Compared with nonparticipants, fewer WIC infants were breastfed (P < .01) and consumed any vegetable (P < .05) but more consumed 100% juice (P < .05). Fewer WIC toddlers and preschoolers consumed any fruit vs nonparticipants (P < .01). The WIC toddlers were more likely to consume any sweet vs nonparticipants (P < .05), especially sugar-sweetened beverages (P < .01). Over 80% of all preschoolers consumed any sweet, and nearly half consumed sugar-sweetened beverages on an average day.

CONCLUSIONS AND IMPLICATIONS: Findings identify feeding and dietary issues that begin during infancy and are also present in toddler and preschool stages. These findings are useful for WIC nutritionists and health care practitioners to encourage the early development of healthful eating patterns.

Technical Report

Abstract  This report provides a set of early-life stage age groups for U.S. Environmental Protection Agency (EPA, or the Agency) scientists to consider when assessing children's exposure to environmental contaminants and the resultant potential dose. These recommended age groups are based on current understanding of differences in behavior and physiology that may impact exposures in children. A consistent set of early-life age groups, supported by an underlying scientific rationale, is expected to improve Agency exposure and risk assessments for children by increasing the consistency and comparability of risk assessments across the Agency, improving accuracy and transparency in assessments for those cases where current practice might too broadly combine behaviorally and physiologically disparate age groups, and fostering a consistent approach to future exposure surveys and monitoring efforts to generate improved exposure factors for children.

Journal Article

Abstract  OBJECTIVE: To describe the food consumption patterns of US infants and toddlers, 4 to 24 months of age.

DESIGN: Descriptive analysis of data collected in the 2002 Feeding Infants and Toddlers study based on telephone interviews and 24-hour dietary recalls.

SUBJECTS: A national random sample of 3,022 infants and toddlers age 4 to 24 months.

STATISTICAL ANALYSES PERFORMED: The percentage of infants and toddlers consuming foods from specific food groups was estimated for six age groups, using a single 24-hour recall.

RESULTS: Infants as young as 7 months of age showed food patterns that have been observed in older children and adults. From 18% to 33% of infants and toddlers between ages 7 and 24 months consumed no discrete servings of vegetables, and 23% to 33% consumed no fruits. French fries were one of the three most common vegetables consumed by infants 9 to 11 months of age. By 15 to 18 months, french fries were the most common vegetable. Almost half (46%) of 7- to 8-month-olds consumed some type of dessert, sweet, or sweetened beverage, and this percentage increased as age increased. By 19 to 24 months, 62% of toddlers consumed a baked dessert, 20% consumed candy, and 44% consumed a sweetened beverage.

APPLICATIONS: Parents and caregivers should be encouraged to offer a wide variety of vegetables and fruits daily, with emphasis on dark green, leafy, and deep yellow vegetables and colorful fruits. They should offer desserts, sweets, sweetened beverages, and salty snacks only occasionally, offering nutrient-dense, age-appropriate foods as alternatives (eg, fruit, cheese, yogurt, and cereals). Water, milk, and 100% fruit juices should be offered as alternative beverages. Because family food choices influence what foods are offered to children, family-based approaches to developing healthy eating habits may be helpful.

Journal Article

Abstract  Dietary intakes of 10-y-old children were examined in six cross-sectional surveys to observe secular trends in energy, macronutrient, cholesterol, sodium, and fatty acid intakes. Total energy intake remained unchanged from 1973 to 1988; however, when expressed as energy/kg body wt, intake decreased from 275.1 kJ (65.5 kcal) in 1973 to 254.9 kJ (60.7 kcal) in 1988 because children's weight increased. Linear trends over this time period were also noted for total fat (negative), saturated fatty acid (negative), polyunsaturated fatty acid (positive), dietary cholesterol (negative), and sodium intake (positive). There was a significant increase in percent energy from protein and carbohydrate and a significant decrease in percent energy from fat, primarily saturated and monounsaturated fatty acids. An apparent increase over time is noted in the percent of children meeting dietary recommendations for total fat, saturated fatty acid, and cholesterol. Yet, few children meet the prudent diet recommendations.

Journal Article

Abstract  OBJECTIVE: To assess the prevalence of breastfeeding and formula feeding, the age of introduction to specific foods, and the types of foods and beverages consumed by Hispanic infants and toddlers compared with similarly aged non-Hispanic infants and toddlers living in the United States.

DESIGN: Descriptive and comparative analysis of dietary recall data and responses to specific interview questions, which were collected in the 2002 Feeding Infants and Toddlers Study. Breastfeeding status, timing of introduction of complementary foods, percentage consuming foods from specific food groups, and the most frequently consumed fruits and vegetables by Hispanic and non-Hispanic children by age group (4-5 months, 6-11 months, 12-24 months).

SUBJECTS: A national random sample of 371 Hispanic and 2,637 non-Hispanic infants and toddlers between the ages of 4 and 24 months.

STATISTICAL ANALYSIS: To test for differences between Hispanic and non-Hispanic children in the percentage who consumed a particular food item, we calculated percentages and standard errors in SUDAAN and 95% and 99% confidence intervals. The most frequently consumed fruits and vegetables were determined by tallying the percentage of infants and toddlers who consumed each specific fruit or vegetable on a given day.

RESULTS: Although there were some similarities, the early flavor and food experiences of Hispanic infants were different from similarly aged non-Hispanic infants in several ways. Hispanic infants younger than 1 year of age were more likely to have ever been breastfed and those who were 4 to 5 months were more likely than non-Hispanics to be eating pureed baby foods on a daily basis. Although less likely to be eating non-infant cereals and baby food vegetables, 6- to 11-month-old Hispanics were more likely to be eating fresh fruits, fruit-flavored drinks, baby cookies, and foods such as soups, rice, and beans that are common in many Hispanic cultures. When fruits were introduced into the Hispanic child's diet, they were most commonly consumed fresh. This higher prevalence of being fed soups, rice, beans, and sweetened fruit-flavored drinks as well as tortillas was also observed among the 12- to 24-month-old toddlers.

CONCLUSIONS: Dietetics professionals should be aware of the cultural differences in the foods fed to infants and toddlers that may contribute to the development of long-term food preferences and impact on nutrition. Understanding the factors that underlie food preferences is important if we are to develop evidence-based strategies to improve children's eating habits and lower their risks factors associated with obesity and other chronic diseases.

Journal Article

Abstract  OBJECTIVE: Describe the study design, data collection methods, 24-hour dietary recall protocol, and sample characteristics of the Feeding Infants and Toddlers Study (FITS) 2008.

DESIGN: A cross-sectional study designed to obtain information on the diets and feeding patterns of US infants, toddlers, and preschoolers ages birth to 47 months. Telephone interviews with parents and caregivers were conducted from June 2008 through January 2009 and included a household interview to recruit the household and collect information on household and child demographics and nutrition-related characteristics, and a dietary interview, including a 24-hour dietary recall collected using the 2008 Nutrition Data System for Research. A second dietary recall was collected on a random subsample to estimate usual nutrient intake distributions. Data collection instruments were built on those used in FITS 2002, with expanded survey content to address emerging issues in childhood nutrition and obesity. The dietary protocol was improved to increase reporting accuracy on portion sizes, and a bridging study was conducted to test effects of the changes in the food model booklet and protocol since FITS 2002 (n=240 cases aged 4 to 23 months).

SUBJECTS: A national random sample of 3,273 infants, toddlers, and preschoolers from birth up to age 4 years, with 2 days of dietary intake data for 701 cases.

RESULTS: Among sampled households with an age-eligible child, the response rate was 60% for the recruitment interview. Of recruited households, the response rate for the dietary interview was 78%.

CONCLUSIONS: The FITS 2008 provides rigorous, well-tested methods and survey questions for nutrition researchers to use in other dietary studies of young children. FITS 2008 findings on the food and nutrient intakes of US children from birth up to age 4 years can inform dietetics practitioners, pediatric health practitioners, and policymakers about the dietary issues of young children.

Journal Article

Abstract  OBJECTIVES: To describe current infant-feeding practices and current food group consumption patterns of infants and toddlers and to compare 2008 data with 2002 data to identify shifts in these practices and food consumption over time.

DESIGN: The Feeding Infants and Toddlers Study (FITS) 2008 is a cross-sectional survey of a national random sample of US children from birth up to age 4 years. Data for three age subgroups (infants 4 to 5.9 months and 6 to 11.9 months and toddlers 12 to 23.9 months) were used from the 2002 (n=2,884) and 2008 surveys (n=1,596).

STATISTICAL METHODS: All analyses use sample weights that reflect the US population aged 4 to 24 months. Descriptive statistics (means, proportions, and standard errors) and t tests were calculated using SUDAAN (release 9, 2005, Research Triangle Park Institute, Research Triangle Park, NC).

RESULTS: These data show a higher percentage of infants receiving breast milk from 4 to 11.9 months of age with a concurrent decreasing percentage of infants receiving formula, which is significantly different from data for the 9- to 11.9-month-old age group. The use of complementary foods also appears to be delayed in FITS 2008: There is a significantly lower proportion of infants consuming infant cereal at 9 to 11.9 months in FITS 2008 compared to 2002 data. Fruit and vegetable consumption remains lower than desired. Significant reductions in the percentage of infants and toddlers consuming any desserts or candy, sweetened beverages, and salty snacks were seen in 2008.

CONCLUSIONS: The findings presented here provide important insights to the content of messages and types of interventions that are still needed to improve the diets of infants and toddlers.

Journal Article

Abstract  Infection resulting from foodborne pathogens, including Escherichia coli O157:H7, is often associated with consumption of raw or undercooked ground beef. However, little is known about the frequency of ground beef consumption in the general population. The objective of this study was to describe patterns of self-reported ground beef and pink ground beef consumption using data from the 2006 through 2007 FoodNet Population Survey. From 1 July 2006 until 30 June 2007, residents of 10 FoodNet sites were contacted by telephone and asked about foods consumed within the previous week. The survey included questions regarding consumption of ground beef patties both inside and outside the home, the consumption of pink ground beef patties and other types of ground beef inside the home, and consumption of ground beef outside the home. Of 8,543 survey respondents, 75.3% reported consuming some type of ground beef in the home. Of respondents who ate ground beef patties in the home, 18.0% reported consuming pink ground beef. Consumption of ground beef was reported most frequently among men, persons with incomes from $40,000 to $75,000 per year, and persons with a high school or college education. Ground beef consumption was least often reported in adults ≥65 years of age. Men and persons with a graduate level education most commonly reported eating pink ground beef in the home. Reported consumption of ground beef and pink ground beef did not differ by season. Ground beef is a frequently consumed food item in the United States, and rates of consumption of pink ground beef have changed little since previous studies. The high rate of consumption of beef that has not been cooked sufficiently to kill pathogens makes pasteurization of ground beef an important consideration, especially for those individuals at high risk of complications from foodborne illnesses such as hemolytic uremic syndrome.

Journal Article

Abstract  Principal component analysis (PCA) is a popular method of dietary patterns analysis, but our understanding of its use to describe changes in dietary patterns over time is limited. Using a FFQ, we assessed the diets of 12,572 nonpregnant women aged 20-34 y from Southampton, UK, of whom 2270 and 2649 became pregnant and provided complete dietary data in early and late pregnancy, respectively. Intakes of white bread, breakfast cereals, cakes and biscuits, processed meat, crisps, fruit and fruit juices, sweet spreads, confectionery, hot chocolate drinks, puddings, cream, milk, cheese, full-fat spread, cooking fats and salad oils, red meat, and soft drinks increased in pregnancy. Intakes of rice and pasta, liver and kidney, vegetables, nuts, diet cola, tea and coffee, boiled potatoes, and crackers decreased in pregnancy. PCA at each time point produced 2 consistent dietary patterns, labeled prudent and high-energy. At each time point in pregnancy, and for both the prudent and high-energy patterns, we derived 2 dietary pattern scores for each woman: a natural score, based on the pattern defined at that time point, and an applied score, based on the pattern defined before pregnancy. Applied scores are preferred to natural scores to characterize changes in dietary patterns over time because the scale of measurement remains constant. Using applied scores, there was a very small mean decrease in prudent diet score in pregnancy and a very small mean increase in high-energy diet score in late pregnancy, indicating little overall change in dietary patterns in pregnancy.

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