Biomedical subjects

B Flay

Publications and source records attributed to B Flay.

16 recordsLinked to original sources

PubMed2006

Obesity prevention in low socioeconomic status urban African-american adolescents: study design and preliminary findings of the HEALTH-KIDS Study.

OBJECTIVES: Obesity prevention among children and adolescents is a public health priority; however, limited school-based intervention trials targeting obesity have been conducted. This article provides an overview of the study design and baseline preliminary findings of our ongoing school-based intervention study. DESIGN: Randomized intervention trial to test a school-based, environmental obesity prevention program in urban low socioeconomic status (SES) African-American adolescents. The intervention program was developed based on several behavioral theories and was guided by preliminary findings based on focus group discussion and baseline data. SETTING: Four Chicago public schools in the US. SUBJECTS: Over 450 5-7th graders and their families and schools were involved. RESULTS: Our baseline data indicate a high prevalence of overweight (43% in boys and 41% in girls) and a number of problems in these children's physical activity and eating patterns. Only 26% reported spending > or = 20 min engaged in vigorous-moderate exercise in > or = 5 days over the past 7 days; 29% reported spending > or = 5 h each day watching TV, playing video games, or using computer. They also consumed too many fried foods and soft drinks. On average, 55% consumed fried foods > or = 2 times/day over the past 7 days; regarding soft drinks, 70% reported consuming > or = 2 times/day. CONCLUSION: School-based obesity prevention programs are urgently needed in the target US urban, low SES, minority communities. These data can be used to inform intervention activities.

Adolescent↗

PubMed2003

Appraisal of anti-smoking advertising by youth at risk for regular smoking: a comparative study in the United States, Australia, and Britain.

OBJECTIVE: To compare the similarity in how youth in the United States, Australia, and Britain appraise anti-smoking advertisements with different characteristics. DESIGN: Each participant viewed and evaluated a set of 10 anti-smoking adverts (from an overall total of 50 adverts) in a controlled experimental context using an audience response methodology. A structured telephone interview was completed one week after viewing the adverts, in which recall and engagement with the adverts by participants was evaluated. SUBJECTS: 615 youths who were experimenting with smoking or were susceptible nonsmokers. MAIN OUTCOME MEASURES: Measures of advert appraisal and engagement. RESULTS: Youth in the United States, Australia, and Britain responded in very similar ways to the same anti-smoking advertisements. In full multivariate models, the target audience of the advert and the advert theme were not related to the main outcome measures employed in this study. However, adverts with visceral negative or personal testimonial executional characteristics were appraised more positively by youths and were more likely to be recalled, thought about, and discussed at follow up one week later. CONCLUSIONS: Youths in three different countries responded to anti-smoking advertisements in very similar ways, suggesting that such adverts might be more actively shared among nations. The appraisal of, and engagement with, the anti-smoking adverts, however, varied substantially depending on executional characteristics. In the design of effective anti-smoking adverts, due attention needs to be paid to those characteristics that appear to most engage youth across different social and cultural environments.

Adolescent↗

PubMed2001

Examining the effectiveness of a community-based self-help program to increase women's readiness for smoking cessation.

This study investigated the effectiveness of two components of a smoking cessation intervention: a reading manual and a series of televised programs. Female smokers in the Chicago metropolitan area with a high school education or less were interviewed at 4 different times: baseline, immediate postintervention, and 6 and 12 months. We examined the effects of several baseline measures (race, age, number of cigarettes smoked, and stage of readiness to change) and exposure to the intervention components on subsequent stage of change. Race, baseline smoking rate, baseline stage, and exposure to both intervention components had direct effects on stage at immediate postintervention, with both intervention components increasing readiness to quit. Furthermore, exposure to the manual interacted with baseline stage, such that the manual benefited women at earlier stages more than women at later stages. Effects of both components were sustained at 6 months, and the effects of the manual were sustained at 12 months.

Adolescent↗

PubMed2001

Changes in self-efficacy and readiness for smoking cessation among women with high school or less education.

The most common theory of smoking cessation postulates that readiness to quit begins with changes in attitudes that move the smoker toward behavioral change and eventual cessation. However, trends in smoking indicate that many who currently smoke are not ready to quit. Hence, strategies that both enhance readiness and focus on quitting are likely to be most effective. We hypothesize that an intervention addressed to motivating behavior change will enhance readiness to change, which will in turn increase the smokers self-efficacy regarding further change. A smoking cessation intervention that combined a self-help booklet and televised segments was developed to address these issues in a population of women smokers with high school or less education. Readiness to quit was measured prior to the intervention, immediately following the intervention, and again at six and 12 months after intervention. The results indicate that the intervention had its effects on readiness to quit, which in turn affected self-efficacy, which further enhanced readiness to quit. These findings indicate that interventions aimed at this group of smokers may need to provide achievable objectives that focus on preparing the smoker to quit as well as promote cessation.

Adult↗

PubMed2000

The relation of perceived neighborhood danger to childhood aggression: a test of mediating mechanisms.

In the current study, two mediational mechanisms, parenting practices and children's beliefs about aggression, were hypothesized to account for the relationship between perceived neighborhood danger and childhood aggression. Using structural equation modeling, data were analyzed from an inner-city school-based sample of 732 predominantly African American 5th graders. Results suggested that perceived neighborhood danger was associated with strong positive beliefs about aggression, which in turn was associated high levels of aggression. The hypothesized mediating role of parenting practices (restrictive discipline, parental monitoring, and parental involvement) on the relation between perceived neighborhood danger and child aggression was not supported. However, the current findings suggest that children's positive beliefs about aggression mediated the relationship between restrictive discipline and aggression. Directions for future research are discussed.

Adult↗

PubMed1999

The application of Poisson random-effects regression models to the analyses of adolescents' current level of smoking.

BACKGROUND: In school-based smoking prevention research, it is still debatable whether parents or peers are most influential to maintained smoking among adolescents. As a result, this study examines the effects of parental and peer approval of smoking on adolescents' current levels of smoking. METHODS: Poisson random-effects regression models were used to assess the effects of parental and peer approval of smoking on adolescents' (n = 913) current level of smoking. RESULTS: Results of these analyses indicate that a stronger relationship between parental approval of smoking and current level of smoking was found for female adolescents than for male adolescents. Conversely, a stronger relationship between peer approval of smoking and current level of smoking was found for male adolescents than for female adolescents. With respect to race, the influence of parental approval of smoking on adolescents' current level of smoking was generally more pronounced for minority adolescents, relative to white adolescents. However, the influence of peer approval of smoking on current level of smoking was strongest for white adolescents and was less strong for black, Hispanic, and Asian adolescents. CONCLUSION: The findings of this study demonstrated that the effects of parental and peer approval of smoking on adolescents' current levels of smoking were varied by gender and race. These differential effects may have some implication for the development of future school-based smoking prevention and cessation programs.

Adolescent↗

PubMed1999

After-school supervision and adolescent cigarette smoking: contributions of the setting and intensity of after-school self-care.

This paper looks at the independent contributions of the setting and the intensity of after-school self-care to the cigarette smoking behaviors of 2352 ninth graders. We controlled for a variety of correlates of adolescent cigarette smoking that have not been accounted for in existing research. Results indicated that the intensity of the self-care experience was significantly associated with adolescent smoking behavior irrespective of the typical setting of the adolescents' after-school activities. Our findings also indicated that a nonpermissive parenting style, family rule-setting about cigarettes, and especially, in absentia parental monitoring may reduce the likelihood of cigarette smoking among latchkey and nonlatchkey adolescents alike. However, latchkey youth were not any more sensitive to these aspects of parenting than other adolescents. This is consistent with the notion that targeting these aspects of the home lives of all adolescents has the potential to reduce smoking behaviors among latchkey as well as nonlatchkey children.

Adolescent↗

PubMed1999

Phases of alcohol problem prevention research.

We build on precedents from other health research to present a phases model of research for alcohol problem prevention that accommodates the special characteristics of this research. We propose a five-level model, in which research moves along a series of relevant continua: from basic to more and more applied research; from descriptive hypothesis-generating pilot studies to full-fledged, methodologically sophisticated, hypothesis-testing studies; from smaller to larger samples for testing; from greater to lesser control of experimental conditions; from more artificial "laboratory" environments to real-world geographically defined communities; from testing the effects of single prevention strategies to more complex studies of multiple strategies integrated into intervention systems; and from research-driven outcome studies to "demonstration" projects that evaluate the capacity of various types of communities to implement prevention programs based on prior evaluations. The five phases of research are: (1) foundational research to define and determine the prevalence of specific alcohol-involved problems, establish causal factors and processes that yield the specific problems or increase the risk of a problem, and provide the foundations for the development of effective prevention interventions; (2) developmental (preliminary effectiveness) studies to develop and test the likely effectiveness, safety, and costs of new interventions or to assess the effectiveness, safety, and costs of an existing intervention; (3) efficacy studies to determine the effects, safety, and costs of an intervention under optimal conditions of implementation (or availability or enforcement) and acceptance (or adoption at the community, organizational, or group level; or participation, compliance, or adherence at the individual level); (4) effectiveness studies of the real-world effectiveness of preventive interventions with purposeful or natural variation in implementation and acceptance; and (5) demonstration studies of the effects of interventions when widely disseminated. The proposed phases model for alcohol problem prevention research presented herein differs in significant ways from the models established by other National Institutes of Health agencies. Greater emphasis is placed on natural experiments, on methods development along the whole research continuum, on collapsing or combining research phases when appropriate, on recognizing the critical importance of behavioral parameters early as well as late in the research sequence, and on extending the research continuum to embrace diffusion and dissemination (i.e., technology transfer) studies. We also include examples of phased research in existing alcohol studies and a discussion of relevant issues, including cost, special populations, methods, and dissemination. If systematically followed, this model has the potential to contribute to wider testing and dissemination of prevention interventions of known effectiveness.

Alcohol Drinking↗

PubMed1995

Strengthening individual and community capacity to prevent disease and promote health: in search of relevant theories and principles.

The dominant theoretical models used in health education today are based in social psychology. While these theories have increasingly acknowledged the role of larger social and cultural influences in health behavior, they have many limitations. Theories seek to explain the causes of health problems, whereas principles of practice, which are derived from practical experience, assist intervenors to achieve their objectives. By elucidating the relationships between theory and practice principles, it may be possible to develop more coherent and effective interventions. The key research agenda for health education is to link theories at different levels of analysis and to create theory-driven models that can be used to plan more effective interventions in the complex environments in which health educators work.

Community Health Services↗

PubMed1995

Alcohol-problem prevention research policy: the need for a phases research model.

This paper describes the need and rationale for developing a phases model for guiding alcohol-problem prevention research. A phased approach to prevention research is consistent with such models developed for other health areas including heart disease, cancer, and drug testing. Such a model in alcohol prevention research can provide a means for (1) locating how far research has progressed along a continuum from basic or pre-intervention research to full implementation of preventive action, (2) identifying gaps in research, and (3) determining the level of empirical proof which exists for one or more prevention strategies prior to widespread dissemination.

Alcoholism↗

PubMed1994

Cultural diversity in the predictors of adolescent cigarette smoking: the relative influence of peers.

A culturally diverse sample of 4375 adolescents completed a self-report inventory assessing their current amount of smoking, and several psychosocial predictors of smoking (e.g., depression, anger, stress, smoking among peers, etc). Results revealed that Whites smoke more than Blacks, Asians, and less acculturated Latinos but not more than highly acculturated Latinos. Stepwise regression analyses of the predictors of smoking found significant ethnic and acculturation differences in the relative predictive power of 18 well-known risk factors. Smoking among peers was the best predictor of smoking for White adolescents (accounting for 23.5% of the variance) but accounted for only 15% of the variance for Latino youth, 9.6% of the variance for Asian youth, and none of the variance for Black youth. Results are discussed in terms of their implications for smoking prevention programs that focus on resisting peer influences.

Acculturation↗

PubMed1994

Attitudes toward people with AIDS and implications for school-based youth AIDS education.

This study examines attitudes toward people with AIDS (PWAs) of a group of 853 7th, 8th, and 9th graders living in high-risk communities in the suburbs of a large Midwestern city. Females appear to be more tolerant than males, and whites appear to be more tolerant than other racial/ethnic groups with respect to attitudes toward PWAs. Although knowledge about actual modes of human immunodeficiency virus (HIV) transmission is not correlated with attitudes toward PWAs, students with greater knowledge about HIV transmission through casual contact, transmission of HIV through blood products, ways of preventing HIV infection, and myths about HIV prevention have more tolerant attitudes toward PWAs. Students who have ever had sexual intercourse are significantly less tolerant of PWAs. Implications of these findings for youth AIDS education are presented.

Acquired Immunodeficiency Syndrome↗

PubMed1993

Which lesson components mediate refusal assertion skill improvement in school-based adolescent tobacco use prevention?

Any of three components of current school-based refusal assertion training might mediate improvement of seventh grade students' ability to refuse tobacco use offers: 1) teaching students knowledge of ways to say "no," 2) engaging students in the practice of refusal assertion, or 3) motivating students to perform refusal assertion in a socially skilled way. A 3-condition true field experimental "component study" of the differential effects of these three components yielded improvement in role-played behavioral skill to refuse tobacco offers that was evident in both the Knowledge and Practice conditions but not in the Motivation condition. In these same two conditions, skills training led to a significant decrease in students' intention to use smokeless tobacco in the future but not cigarettes. A focus on engaging students in Knowledge and Practice components of refusal assertion training appears warranted.

Adolescent↗

PubMed1990

Adolescents' first and most recent use situations of smokeless tobacco and cigarettes: similarities and differences.

This study compared first and most recent use situations of adolescent smokeless tobacco experimenters with those of adolescent cigarette experimenters. Structured, open-ended interviews were conducted with 320 seventh and tenth grade youths in 16 Southern California schools. Students were categorized as nonusers (those who had never experimented with any tobacco product), minimal experimenters (those who had experimented with smokeless tobacco or cigarettes between 1 and 9 times), and persistent experimenters (those who had experimented with smokeless tobacco or cigarettes 10 or more times). The situations reported by smokeless tobacco were similar to those reported by cigarette experimenters. The most important differences between the two groups are highlighted. In particular, smokeless tobacco users seemed less concerned about negative social consequences of use than cigarette smokers. In addition, nonusers' observations of use and implications for prevention and cessation are discussed.

Adolescent↗

PubMed1989

Substance use among eighth-grade students who take care of themselves after school.

This investigation focused on substance use among children who regularly care for themselves after school (latchkey children). The data, collected from 4932 eighth-grade students, indicated that self-care is an important risk factor for alcohol, tobacco, and marijuana use. Data collected from 2185 parents validated these findings. Eighth-grade students, who took care of themselves for 11 or more hours a week, were at twice the risk of substance use as those who did not take care of themselves at all. This relationship held at all levels of sociodemographic status, extracurricular activities, sources of social influence, and stress. Of the 186 stratified tests of the relationship, 90% were significant; even those not found to be significant were in the direction expected. Path analyses suggest that risk-taking, having friends who smoke, and being offered cigarettes may partially explain the relationship between self-care and substance use. Those eighth-grade students who select friends who smoke and place themselves in situations in which they are offered cigarettes may be manifesting a desire to display their sense of maturity and independence. The fact that the increase in substance use occurred among almost all strata tested and the fact that mediation was not complete suggest that more than one mechanism may account for the associated increase in substance use. It is also possible that more time in self-care results in more unnoticed solitary trials of substances, as well as trials motivated by peer offers or peer pressure to use substances.

Adolescent↗

PubMed1986

Balancing program and research integrity in community drug abuse prevention: project STAR approach.

This paper focuses on the process of community-based drug prevention programming using an ongoing, multiple community project (Project STAR) as an illustration. Particular attention is paid to problems and strategies for balancing program and research integrity over the long-term. Specific strategies are discussed for obtaining and sustaining support for the program, quality control throughout program delivery, and accommodation of both research and program objectives.

Adolescent↗