Biomedical subjects

Carolyn C Johnson

Publications and source records attributed to Carolyn C Johnson.

9 recordsLinked to original sources

PubMed2006

Formative research in school and community-based health programs and studies: "state of the art" and the TAAG approach.

Formative research uses qualitative and quantitative methods to provide information for researchers to plan intervention programs. Gaps in the formative research literature include how to define goals, implementation plans, and research questions; select methods; analyze data; and develop interventions. The National Heart, Lung, and Blood Institute funded the Trial of Activity for Adolescent Girls (TAAG), a randomized, multicenter field trial, to reduce the decline in physical activity in adolescent girls. The goals of the TAAG formative research are to (a) describe study communities and schools, (b) help design the trial's interventions, (c) develop effective recruitment and retention strategies, and (d) design evaluation instruments. To meet these goals, a variety of methods, including telephone interviews, surveys and checklists, semistructured interviews, and focus group discussions, are employed. The purpose, method of development, and analyses are explained for each method.

Adolescent↗

PubMed2006

Data to action: using formative research to develop intervention programs to increase physical activity in adolescent girls.

Formative research is used to inform intervention development, but the processes of transmitting results to intervention planners and incorporating information into intervention designs are not well documented. The authors describe how formative research results from the Trial of Activity for Adolescent Girls (TAAG) were transferred to planners to guide intervention development. Methods included providing oral and written reports, prioritizing recommendations, and cross-checking recommendations with intervention objectives and implementation strategies. Formative work influenced the intervention in many ways. For example, results indicated that middle schools offered only coeducational physical education and health education classes, so the TAAG intervention was designed to be appropriate for both sexes, and intervention strategies were developed to directly address girls' stated preferences (e.g., enjoyable activities, opportunity to socialize) and barriers (e.g., lack of skills, fear of injury) for physical activity. The challenges of using formative research for intervention development are discussed.

Adolescent↗

PubMed2004

School-based health education programs can be maintained over time: results from the CATCH Institutionalization study.

BACKGROUND: Developing and evaluating interventions to influence students' opportunities for healthful choices has been a focus of school-based health promotion research; however, few studies have examined the sustainability of these programs and viability of continued organizational implementation. METHODS: The purpose of this study was to determine the maintenance of Child and Adolescent Trial for Cardiovascular Health (CATCH) school-level changes in former intervention (n = 56) and former comparison (n = 20) schools 5 years post-intervention. Twelve schools unexposed to CATCH were measured as controls. Macronutrient content of 5 days of school lunch menus, amount and type of physical education (PE) classes, and health instruction practices in the classroom were assessed. An institutionalization score for schools was developed, using program maintenance variables: % kcal from fat and saturated fat in school lunches, % PE class spent in vigorous and moderate-to-vigorous physical activity, and class time devoted to CATCH topics. RESULTS: Menus from 50% of former intervention cafeterias met the Eat Smart guidelines for fat, compared to 10% of former control cafeterias and 17% of unexposed school cafeterias (P < 0.005). There were no significant differences in implementation of CATCH PE goals between conditions. Although the total time spent teaching CATCH was low in former CATCH schools, the former intervention schools spent significantly more time teaching CATCH and taught more lessons as compared to former comparison schools. Former intervention schools had a higher mean institutionalization score than former comparison schools (P < 0.001). Training had the greatest impact on maintenance of CATCH. CONCLUSIONS: Results from this study suggest that changes in the school environment to support healthful behaviors can be maintained over time. Staff training is an important factor in achieving institutionalization of these programs.

Adolescent↗

PubMed2004

Profiles of the adolescent smoker: models of tobacco use among 9th grade high school students: Acadiana Coalition of Teens against Tobacco (ACTT).

BACKGROUND: Tobacco use, underreported among Louisiana youth, was examined among 9th grade students in south central Louisiana; profiles of tobacco use were developed to inform adolescent tobacco control programs. METHODS: Cross-sectional Health Habits Survey was administered to 4,808 students who were about 15 years old, predominantly white, with gender almost evenly distributed. Saliva samples were collected from 1,966 students. Analysis of a subsample resulted in good concordance between self-reported daily tobacco use and cotinine. RESULTS: About 58% of students ever smoked a cigarette, 25% had a cigarette within the previous 30 days, 17% smoked within the past 7 days and almost 8% reported smokeless tobacco use. Smokeless tobacco use was greater for males than females. Caucasians, native Americans, and Latinos were more likely to smoke than African-Americans. Social relationships associated with adolescent smoking included having a friend, parent and/or sibling who smoked, having a friend who consumed alcohol, and being around people who used alcohol for "kicks." The attitudes of nonsmokers were consistently in the positive direction relative to disapproval of tobacco and alcohol use. The profiles differed demographically between black and white students. CONCLUSIONS: These data provide the needed information for guiding health promotion and tobacco control efforts, specifically regarding black/white differences.

Adolescent↗

PubMed2004

A qualitative evaluation of the Students of Service (SOS) program for sexual abstinence in Louisiana.

Abstinence-only programs for preventing teen pregnancy are the only options in some states but are the programs of choice in others. Effectiveness data, however, are lacking. The SOS Adolescent Family Life Program (SOS), an abstinence-only teen pregnancy prevention program, was implemented in south central Louisiana. Peer mentoring with an abstinence and life skills curriculum comprised the major components. SOS was implemented in the same grades in the same schools with new students each year for five years. During the final years of the program, qualitative evaluation was conducted with principals, teachers, peer mentors, and students. Use of peer mentors was reaffirmed as valuable; however, quality of peer mentoring was questioned and was a major issue for improvement. Other issues included: starting sexuality education in earlier grades, updating curricula and materials, offering more interactive classes, improving peer mentor training, and using teacher input to improve educational aspects of the program. Qualitative assessments provided valuable insights for future improvement in abstinence-only programs.

Adolescent↗

PubMed2003

Maintenance of the classroom health education curricula: results from the CATCH-ON study.

Maintenance of the interactive Child and Adolescent Trial for Cardiovascular Health (CATCH) third- to fifth-grade curricula was studied in the 56 original intervention schools and 20 of the original control schools 5 years postintervention in four regions of the United States. Target grade teachers completed a self-administered survey that included questions regarding use of the CATCH materials, training in CATCH or other health education, barriers and perceived support for health education, and amount of health education currently taught. Percentage of teachers who continued to teach CATCH in the classroom was low; however, percentages were significantly higher in former intervention compared with control schools, even though control schools received training and materials following the main field trial. The results of this study can provide useful information for future development of classroom health promotion materials with a higher level of sustainability.

Cardiovascular Diseases↗

PubMed2003

School climate and the institutionalization of the CATCH program.

School climate refers to various physical and psychosocial structures that shape schools' social and physical environments. The Child and Adolescent Trial for Cardiovascular Health (CATCH) study provided an opportunity to study how aspects of school climate are associated with continued implementation of the CATCH program. Nutrient analysis of menus, observations of physical education (PE) classes, and teacher and staff self-reports were used to measure CATCH program components. Results of this study indicate that aspects of school climate were associated with continued implementation of the CATCH classroom component but not the CATCH food service or PE components. These findings have implications for how we plan for the progression of innovative school health promotion programs from the initial trial stage to institutionalization. Measures of school climate may be useful in determining a school's readiness to adopt and implement an innovative health promotion curriculum.

Adolescent↗

PubMed2002

Fifth through eighth grade longitudinal predictors of tobacco use among a racially diverse cohort: CATCH.

CATCH provides multiethnic cohort data from third to eighth grades from four US geographic regions. This study examined smoking behaviors and predictors from fifth and eighth grades by ethnicity, gender, and geographic location through self-report data obtained from the cohort (N = 3,654). Overall, eighth grade prevalence for ever smoked was about 44%, 30-day prevalence was about 20%, 7-day prevalence 13.3%, and daily prevalence 7.4%. Prevalence was similar for Caucasians (21.5%) and Latinos (21.6%) and lowest for African Americans (13.1%). The 30-day prevalence for smokeless tobacco was higher for boys than for girls (9.8% vs 5.1%). Tobacco use by parents, siblings, and friends, and easy accessibility in the home in fifth grade, were significant predictors for smoking in eighth grade. Results did not differ by race, gender, or geographic location. The strongest correlate of smoking in eighth grade was having a best friend who smoked. Intention not to smoke in fifth grade predicted nonsmoking in eighth grade. Predictor strength across ethnic groups in different geographic regions was impressive. The social environment of young people continues to be an important instigator of smoking onset. The connection between intention and behavior over time suggests students' intentions not to smoke reflect decision-making at an early age.

Adolescent↗

PubMedDate not supplied

The role of peer social network factors and physical activity in adolescent girls.

OBJECTIVE: To study the relationship between peer-related physical activity (PA) social networks and the PA of adolescent girls. METHODS: Cross-sectional, convenience sample of adolescent girls. Mixed-model linear regression analyses to identify significant correlates of self-reported PA while accounting for correlation of girls in the same school. RESULTS: Younger girls were more active than older girls. Most activity-related peer social network items were related to PA levels. More PA with friends was significantly related to self-reported PA in multivariate analyses. CONCLUSIONS: Frequency of PA with friends was an important correlate of PA among the peer network variables for adolescent girls.

Adolescent↗