Frank R. Lawrence

Kindergarten Teachers' Views of Children's Readiness for School.

The purpose of this study was to examine perceptions of children’s readiness for school held by kindergarten teachers who had different training experiences and who are within different school contexts (e.g., geographic region, school types, etc.). Participants were 3,305 kindergarten teachers from the Early Childhood Longitudinal Study—Kindergarten cohort in the 1998–1999 school year. A theoretical model was constructed, tested and used to organize and analyze the data. Descriptive analyses, factor analysis and statistical analysis with latent variables were used to compare a broad range of cases and variables. Overall findings from kindergarten teacher-reported readiness items revealed a strong emphasis on the social aspects of learning. Readiness expectations were influenced by their gender, age, and the geographic region where they were teaching. This study indicated that younger teachers valued academic skills more than older teachers. In addition, kindergarten teachers from the South region held higher expectations regarding academic preparedness than the rest of the nation.

Consumption of Dry Beans, Peas, and Lentils Could Improve Diet Quality in the US Population

The US Department of Agricultures MyPyramid guidelines introduced a near doubling of the dietary recommendations for vegetables. These recommendations target specific subgroups of vegetables, including dry beans and peas. Dry beans and peas provide an array of nutrients and phytochemicals that have been shown to have beneficial health effects, yet consumption levels in the United States are quite low. Few studies have examined the influence of legume consumption on nutrient intakes. Therefore, the purpose of this study was to assess nutrient and food group intakes of dry bean and pea consumers compared to nonconsumers. Dietary intake data from the 1999-2002 National Health and Nutrition Examination Survey for adults aged > or =19 years was used. Results show that on any given day only 7.9% of adults are consuming dry beans and peas; Mexican Americans or other Hispanics are more likely to be consumers than nonconsumers. Consuming approximately (1/2) c dry beans or peas resulted in higher intakes of fiber, protein, folate, zinc, iron, and magnesium with lower intakes of saturated fat and total fat. These data support the specific recommendation for dry beans and peas as part of the overall vegetable recommendation. Increased consumption of dry beans and peas-economical and nutrient-rich foods-could improve the diet quality of Americans.

Exposure to English Before and After Entry into Head Start: Bilingual Children's Receptive Language Growth in Spanish and English.

Abstract This investigation examined the Spanish and English receptive vocabulary and language comprehension abilities of bilingual preschoolers who attended Head Start over a two-year period. It was hypothesised that bilingual childrens development would follow linear trajectories and that the development of children who were only exposed to Spanish in the home prior to school entry would differ from children with exposure to Spanish and English from birth. Results revealed that the two groups’ language abilities in Spanish and English differed at the beginning of the study as measured by raw and standard scores and that these differences were maintained over the two years. The exceptions to this were found in the childrens vocabulary abilities, with the difference between the two groups’ English standard scores narrowing over time and the difference between their Spanish standard scores increasing during the two-year period. Similar to research on monolingual and bilingual children with low socioeconomic status (SES), childrens development in both languages essentially followed linear trajectories. Childrens raw scores on the English receptive vocabulary test accelerated, similar to research findings on monolingual children of middle SES. Also, childrens standard scores on the Spanish language comprehension measure decelerated after an initial period of linear growth. Future directions for research are discussed.

The Effect of Maternal Language on Bilingual Children's Vocabulary and Emergent Literacy Development during Head Start and Kindergarten.

This investigation examined the impact of maternal language and childrens gender on bilingual childrens vocabulary and emergent literacy development during 2 years in Head Start and kindergarten. Seventy-two mothers and their children who attended English immersion programs participated. Questionnaires administered annually over a 3-year period revealed that mothers increased their usage of English to their children. In addition, more mothers of sons reported using “More or All English” with their children than mothers of daughters. Growth curve modeling indicated that increased usage of English did not impact childrens English vocabulary or emergent literacy development. However, increased usage of English slowed the growth of childrens Spanish vocabulary. Despite differences in mother-to-child language usage, gender did not impact growth in either language. These findings provide evidence that maternal usage of Spanish does not negatively affect childrens developing English vocabulary or emergent literacy abilities. Maternal usage of Spanish appears necessary to maximize childrens developing Spanish vocabulary.

The effect of walnut intake on factors related to prostate and vascular health in older men

BackgroundTocopherols may protect against prostate cancer and cardiovascular disease (CVD).MethodsWe assessed the effect of walnuts, which are rich in tocopherols, on markers of prostate and vascular health in men at risk for prostate cancer. We conducted an 8-week walnut supplement study to examine effects of walnuts on serum tocopherols and prostate specific antigen (PSA). Subjects (n = 21) consumed (in random order) their usual diet +/- a walnut supplement (75 g/d) that was isocalorically incorporated in their habitual diets. Prior to the supplement study, 5 fasted subjects participated in an acute timecourse experiment and had blood taken at baseline and 1, 2, 4, and 8 h after consuming walnuts (75 g).ResultsDuring the timecourse experiment, triglycerides peaked at 4 h, and gamma-tocopherol (γ-T) increased from 4 to 8 h. Triglyceride – normalized γ-T was two-fold higher (P = 0.01) after 8 versus 4 h. In the supplement study, change from baseline was +0.83 ± 0.52 μmol/L for γ-T, -2.65 ± 1.30 μmol/L for alpha-tocopherol (α-T) and -3.49 ± 1.99 for the tocopherol ratio (α-T: γ-T). A linear mixed model showed that, although PSA did not change, the ratio of free PSA:total PSA increased and approached significance (P = 0.07). The α-T: γ-T ratio decreased significantly (P = 0.01), partly reflecting an increase in serum γ-T, which approached significance (P = 0.08).ConclusionThe significant decrease in the α-T: γ-T ratio with an increase in serum γ-T and a trend towards an increase in the ratio of free PSA:total PSA following the 8-week supplement study suggest that walnuts may improve biomarkers of prostate and vascular status.

Dietary screening tool identifies nutritional risk in older adults

BACKGROUND No rapid methods exist for screening overall dietary intakes in older adults. OBJECTIVE The purpose of this study was to develop and evaluate a scoring system for a diet screening tool to identify nutritional risk in community-dwelling older adults. DESIGN This cross-sectional study in older adults (n = 204) who reside in rural areas examined nutrition status by using an in-person interview, biochemical measures, and four 24-h recalls that included the use of dietary supplements. RESULTS The dietary screening tool was able to characterize 3 levels of nutritional risk: at risk, possible risk, and not at risk. Individuals classified as at nutritional risk had significantly lower indicators of diet quality (Healthy Eating Index and Mean Adequacy Ratio) and intakes of protein, most micronutrients, dietary fiber, fruit, and vegetables. The at-risk group had higher intakes of fats and oils and refined grains. The at-risk group also had the lowest serum vitamin B-12, folate, beta-cryptoxanthin, lutein, and zeaxanthin concentrations. The not-at-nutritional-risk group had significantly higher lycopene and beta-carotene and lower homocysteine and methylmalonic acid concentrations. CONCLUSION The dietary screening tool is a simple and practical tool that can help to detect nutritional risk in older adults.

Pulse consumption in Canadian adults influences nutrient intakes.

Pulses (dry beans, peas, lentils) are nutrient-dense foods that are recommended as good choices in either the vegetable or meat and alternative food groups in Canadas Food Guide. To examine the prevalence and the effect of pulse consumption on nutrient intake in Canadian adults ( ≥ 19 years), we analysed cross-sectional data (n 20,156) from the 2004 Canadian Community Health Survey, Cycle 2·2. Participants were divided into non-consumers and quartiles of pulse intake. Sample weights were applied and logistic regression analysis was used to explore the association of nutrient intakes and pulse consumption, with cultural background, sex, age and economic status included as covariates. On any given day, 13 % of Canadians consume pulses, with the highest consumption in the Asian population. The pulse intake of consumers in the highest quartile was 294 (se 40) g/d and, compared with non-consumers, these individuals had higher intakes of carbohydrate, fibre and protein. As well, the micronutrient intake of pulse consumers was enhanced, resulting in fewer individuals who were below the estimated average requirement for thiamin, vitamin B6, folate, Fe, Mg, P and Zn, compared with non-consumers. Although pulses are generally low in Na, its intake also was higher in pulse consumers. Among the higher quartiles of pulse consumers, fruit and vegetable intake was one serving higher. These data indicate that pulse consumption supports dietary advice that pulses be included in healthful diets. Further studies elucidating the sources of increased Na in pulse consumers will be necessary so that dietary advice to increase consumption of pulses will maximise their nutritional benefits.

Assessing media campaigns linking marijuana non-use with autonomy and aspirations: "Be Under Your Own Influence" and ONDCP's "Above the Influence".

Two media-based interventions designed to reduce adolescent marijuana use ran concurrently from 2005 to 2009. Both interventions used similar message strategies, emphasizing marijuana’s inconsistency with personal aspirations and autonomy. “Be Under Your Own Influence” was a randomized community and school trial replicating and extending a successful earlier intervention of the same name (Slater et al. Health Education Research 21:157–167, 2006). “Above the Influence” is a continuing national television, radio, and print campaign sponsored by the Office of National Drug Control Policy (ONDCP). This study assessed the simultaneous impact of the interventions in the 20 U.S. communities. Results indicate that earlier effects of the “Be Under Your Own Influence” intervention replicated only in part and that the most plausible explanation of the weaker effects is high exposure to the similar but more extensive ONDCP “Above the Influence” national campaign. Self-reported exposure to the ONDCP campaign predicted reduced marijuana use, and analyses partially support indirect effects of the two campaigns via aspirations and autonomy.

A randomized behavioural trial targeting glycaemic index improves dietary, weight and metabolic outcomes in patients with type 2 diabetes.

OBJECTIVE Glycaemic index (GI) reflects the postprandial glucose response of carbohydrate-containing foods. A diet with lower GI may improve glycaemic control in people with diabetes. The purpose of the present study was to evaluate the change in outcomes following a behavioural intervention which promoted lower-GI foods among adults with diabetes. DESIGN A pre-test-post-test control group design was used with participants randomly assigned to an immediate (experimental) or delayed (control) treatment group. The intervention included a 9-week, group-based intervention about carbohydrate and the glycaemic index. Dietary, anthropometric and metabolic measures were obtained pre/post-intervention in both groups and at 18-week follow-up for the immediate group. SETTING The study was conducted in a rural community in the north-eastern USA. SUBJECTS Adults having type 2 diabetes mellitus for > or =1 year, aged 40-70 years and not requiring insulin therapy (n 109) were recruited. RESULTS Following the intervention, mean dietary GI (P < 0.001), percentage of energy from total fat (P < 0.01) and total dietary fibre (P < 0.01) improved in the immediate compared with the delayed group. Mean BMI (P < 0.0001), fasting plasma glucose (P = 0.03), postprandial glucose (P = 0.02), fructosamine (P = 0.02) and insulin sensitivity factor (P = 0.04) also improved in the immediate group compared with the delayed group. Mean waist circumference among males (P < 0.01) and body weight among males and females (P < 0.01) were significantly different between treatment groups. CONCLUSIONS Educating clients about carbohydrate and the glycaemic index can improve dietary intake and health outcomes among adults with type 2 diabetes.

Media influence on alcohol-control policy support in the U.S. Adult population: the intervening role of issue concern and risk judgments

Data from a national random-digit dial survey (N = 1,272) were analyzed to examine the influence of news media use on alcohol-control policy support, and to test whether risk judgments and concern about alcohol-related risks mediated effects of news media use variables on support for various types of alcohol-control public policies. In so doing, we test the proposition that perceptions influenced by routine coverage of events such as crime or accidents may in part explain news effects on public policy support in the domain of health policy. Analyses indicated that the (positive) influence of attention to news about crime and accidents on support for laws increasing server liability and limiting marketing of alcohol products was mediated by concern about risks of alcohol-related injuries and by perceptions of the alcohol-attributable fraction of homicides and unintended injury fatalities. Tests of model fit suggest that concern precedes the more cognitive risk judgment in the mediation model.