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Michelle Zive

Publications and source records attributed to Michelle Zive.

6 recordsLinked to original sources
PubMed2006

Long-term effects of a communication intervention for Spanish-dominant Latinas.

BACKGROUND: Few studies compare the influence of different types of dietary interventions on the dietary practices of Latinas in the short and long term. The present study examined the 1-year impact of two innovative behavior-change approaches to reduce dietary fat and increase fiber. DESIGN: Three-group randomized controlled trial: (1) personalized dietary counseling via lay heath advisors (promotoras) plus tailored print materials delivered via the mail, (2) tailored mailed print materials only, and (3) targeted mailed "off-the-shelf" materials. SETTING/PARTICIPANTS: A total of 357 Latinas were randomly assigned to the three aforementioned conditions. INTERVENTION: Promotora and tailored print materials. MAIN OUTCOME MEASURES: Fat intake (total grams of fat and percent calories from dietary fat) and number of grams of dietary fiber. RESULTS: Earlier work reported that at immediate post-intervention the promotora group achieved significantly lower levels of total fat grams, and lower levels of energy intake, total saturated fat, total carbohydrates, glucose, and fructose than the targeted group. However, the present longitudinal analyses suggest that the effects achieved by the promotoras dissipated over the 12-month follow-up period while the effects of the tailored group concurrently improved. CONCLUSIONS: The high interactivity (i.e., calls, visits) of the promotora condition may have been the most salient reinforcer and may have led to further tailoring, making this type of intervention more effective than the comparison groups in the short term. Further research should explore whether booster sessions involving promotoras help to maintain the impact over time.

Adult↗
PubMed2006

Serum homocysteine is related to food intake in adolescents: the Child and Adolescent Trial for Cardiovascular Health.

BACKGROUND: An understanding of the relation in adolescents between serum homocysteine and foods rich in vitamin B-6, vitamin B-12, and folate is important because high homocysteine concentrations in childhood and adolescence may be a risk factor for later cardiovascular disease. However, little is known about the relation between food intake and homocysteine in adolescents. OBJECTIVE: Five years after national folic acid fortification of enriched grain products, cross-sectional relations between food intake and serum homocysteine concentrations were examined in 2695 adolescents [x age: 18.3 (range: 15-20) y] enrolled in the Child and Adolescent Trial for Cardiovascular Health. DESIGN: A nonfasting blood specimen was analyzed for serum homocysteine, folate, and vitamins B-6 and B-12. Dietary intake was assessed by using a food-frequency questionnaire. Multiple regression analyses were used to evaluate the relation of intakes of whole grains, refined grains, fruit, vegetables, dairy products, red and processed meats, and poultry with serum homocysteine concentrations after adjustment for demographic characteristics, lifestyle factors, and food intake. RESULTS: Serum homocysteine concentrations were lower with greater intakes of whole grains (P for trend = 0.002), refined grains (P for trend = 0.02), and dairy foods (P for trend <0.001); were higher with greater intake of poultry (P for trend = 0.004); and were not related to intakes of fruit, vegetables, or red or processed meat. After additional adjustment for serum B vitamins, the relations of serum homocysteine with most food groups were attenuated. CONCLUSION: These observational findings suggest a beneficial effect of whole-grain, refined-grain, and dairy products on serum homocysteine concentrations in an adolescent population.

Adolescent↗
PubMed2003

Maintenance of effects of the eat smart school food service program: results from the CATCH-ON study.

The Child and Adolescent Trial for Cardiovascular Health (CATCH) Eat Smart Program targeted the food service of the 56 CATCH intervention elementary schools to effect positive changes in the total fat and saturated fat content of school lunch. Maintenance of the food service intervention in former intervention (n = 56) and control (n = 20) schools was evaluated 5 years postintervention. After 5 years of follow-up and no further intervention, the former CATCH intervention schools not only maintained prior levels but also had further decreases in the mean percentage of calories from total and saturated fat to 31% and 10.4%, respectively. Significant decreases in these nutrients were also observed in the former CATCH control schools; however, the former intervention schools more closely approached the Eat Smart goal for total fat Overall, sodium levels rose in both school conditions and did not differ significantly at follow-up.

Adolescent↗
PubMed2002

Nutrient intake over time in a multi-ethnic sample of youth.

OBJECTIVES: The purpose of this paper is to present longitudinal data on nutrient intakes of youth with emphases on differences by sex and race/ethnicity. Nutrients selected for examination are those implicated in chronic disease. DESIGN: 24-hour dietary recalls were collected from a cohort of third, fifth and eighth graders (n = 1874). SETTING AND SUBJECTS: The sample is drawn from the Child and Adolescent Trial for Cardiovascular Health and includes students from California, Louisiana, Minnesota and Texas. RESULTS: Across the total sample, nutrient intakes met recommended levels except that total fat, saturated fat and sodium consistently exceeded recommendations and calcium and iron intake of girls consistently fell short of recommended levels. Nutrient consumption between third and eighth grade differed by sex and race/ethnicity for a number of nutrients. In particular, females' intake of energy from total fat, calcium, iron, folic acid, vitamin A and vitamin D decreased over time relative to males' intakes, controlling for overall energy intake. Compared with the other ethnic/racial groups, African-American students increased their intake of energy from total fat and saturated fat over time. CONCLUSIONS: Our results suggest that the diets of youth change over time, and negative trends are more common in females than in males and in African-American and Hispanics compared with Caucasian students. Nutrition education and intervention are needed throughout childhood and adolescence with an emphasis on choosing healthful foods. In addition, greater attention to differential opportunities and reinforcements for females and males, and Caucasian, Hispanic and African-American students is warranted.

Adolescent↗