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1.
Enhancing Educator Engagement in School Mental Health Care Through Digital Simulation Professional Development 下载免费PDF全文
Michael W. Long SD MPH Glenn Albright PhD Jeremiah McMillan BA Kristen M. Shockley PhD Olga Acosta Price PhD 《The Journal of school health》2018,88(9):651-659
BACKGROUND
Despite the critical role of educators as gatekeepers for school mental health services, they receive limited training to support student mental health. We report findings from a trial of an online mental health role‐play simulation for elementary school teachers on changes in attitudes and self‐reported helping behaviors for students experiencing psychological distress.METHODS
We randomly assigned 18,896 elementary school teachers to wait‐list control or intervention conditions in which they received the 45‐ to 90‐minute online role‐play simulation. We administered a version of the validated Gatekeeper Behavior Scale at baseline and postintervention, which measures attitudinal dimensions shown to predict teacher helping behavior change. Self‐reported helping behaviors were collected at baseline and 3‐month follow‐up. Outcomes were compared between the intervention follow‐up and control group baseline measures.RESULTS
The intervention group posttraining scores were significantly higher (p < .001) than the control group for all the preparedness, likelihood, and self‐efficacy Gatekeeper Behavior subscales. All 5 helping behaviors were significantly higher among the intervention group at follow‐up compared to the control group at baseline.CONCLUSIONS
We found that a brief online role‐play simulation was an effective strategy for improving teacher attitudes and behaviors needed to perform a positive mental health gatekeeper role in schools.2.
The Application of Optimal Defaults to Improve Elementary School Lunch Selections: Proof of Concept 下载免费PDF全文
Katharine L. Loeb PhD Cynthia Radnitz PhD Kathleen L. Keller PhD Marlene B. Schwartz PhD Nancy Zucker PhD Sue Marcus PhD Richard N. Pierson MD Michael Shannon MEd Danielle DeLaurentis BA 《The Journal of school health》2018,88(4):265-271
BACKGROUND
In this study, we applied behavioral economics to optimize elementary school lunch choices via parent‐driven decisions. Specifically, this experiment tested an optimal defaults paradigm, examining whether strategically manipulating the health value of a default menu could be co‐opted to improve school‐based lunch selections.METHODS
The design was a randomized comparison of optimal versus suboptimal (standard) default lunch menus for all first‐graders in a school district for a period of 1 week. We hypothesized that making the default lunch option healthier, while providing parents the opportunity to access and choose from the standard school menu for their child, would yield more frequent selection of healthier items than when the default option was suboptimal.RESULTS
Overall, 127 (93%) first‐grade children's families participated. Among those families randomized to receive the nutritionally optimized default menu, all but one remained with these options; of those parents randomized to the standard menu (suboptimal default), all parents remained with these options (Χ2 = 123.06, df = 1, p < .001).CONCLUSIONS
The mere positioning of choices, without restricting options, significantly affected which menu items the children received during the test period. Results are proof of concept for a strategy to increase health‐promoting school lunch content, procedures, and policies.3.
BACKGROUND
Currently, no intervention concerning transition of health care responsibilities from parents to teens exists for adolescents in the general population. The purpose of this intervention was to evaluate teacher satisfaction and student knowledge gain of a health unit developed for adolescents on becoming their own health care advocates.METHODS
Throughout the 2014–2015 school year, 13 health and career technical education teachers in 11 Delaware high schools taught the unit to 948 students in 2 90‐minute classes in 35 classrooms. Assessments included teacher reflections and student pre‐ and posttests to measure knowledge transfer and gain and gather feedback.RESULTS
Teacher and student feedback indicated the materials were appropriate and useful in teaching students to navigate the health care system. Student knowledge increased from pretest (64%) to posttest (82%), (p < .001). The educational background of the teacher did not influence this outcome. Students reported they will know what to do better at their next doctor's appointment because of this unit and indicated support for peers to learn this information.CONCLUSIONS
The unit resulted in content knowledge increase for students. It was consistently effective throughout all schools regardless of social and demographic characteristics, teacher type, or experience teaching the unit.4.
Motor Competence Levels and Prevalence of Developmental Coordination Disorder in Spanish Children: The MOVI‐KIDS Study 下载免费PDF全文
Santiago Amador‐Ruiz MSc David Gutierrez PhD Vicente Martínez-Vizcaíno PhD MD Roberto Gulías‐González PhD María J. Pardo‐Guijarro PhD Mairena Sánchez-López PhD 《The Journal of school health》2018,88(7):538-546
BACKGROUND
Motor competence (MC) affects numerous aspects of children's daily life. The aims of this study were to: evaluate MC, provide population‐based percentile values for MC; and determine the prevalence of developmental coordination disorder (DCD) in Spanish schoolchildren.METHODS
This cross‐sectional study included 1562 children aged 4 to 6 years from Castilla‐La Mancha, Spain. MC was assessed using the Movement Assessment Battery for Children‐Second Edition. Values were analyzed according to age, sex, socioeconomic status (SES), environment (rural/urban), and type of school.RESULTS
Boys scored higher than girls in aiming and catching, whereas girls aged 6 scored higher than boys in balance. Children living in rural areas and those attending to public schools obtained better scores in aiming and catching than those from urban areas and private schools. The prevalence of DCD was 9.9%, and 7.5% of children were at risk of having movement problems.CONCLUSION
Motor test scores can represent a valuable reference to evaluate and compare the MC in schoolchildren. Schools should identify motor problems at early ages and design initiatives which prevent or mitigate them.5.
Examining Time to Treatment and the Role of School‐Based Health Centers in a School‐Based Sexually Transmitted Infection Program 下载免费PDF全文
Mallika Sabharwal BS Lisa Masinter MD MPH MS FACOG Kingsley N. Weaver MPH 《The Journal of school health》2018,88(8):590-595
BACKGROUND
Barriers to health care service utilization contribute to the spread of sexually transmitted infections (STIs) among teens. School‐based STI screening programs reach adolescents outside of the clinic‐based health care model and schools with school‐based health centers (SBHCs) may expedite treatment because of their proximity to the population. This study examined whether students who tested positive for STIs in a school‐based screening program had differing times to treatment based on treatment location.METHODS
All positive cases of chlamydia and gonorrhea from the 2012‐2013 school year in a Chicago Department of Public Health (CDPH) and Chicago Public Schools school‐based STI screening program were reviewed. Median time to treatment was compared for those treated at an SBHC versus those treated elsewhere (CDPH STI clinic, community health center, private physician).RESULTS
Overall, 540 students had positive results. The median age was 17 years, 427 had chlamydia (79.1%), 59 had gonorrhea (10.9%), and 54 had dual infections (10.0%); 144 were tested in a school with a SBHC on site (26.7%). Of the 483 students who received treatment (89.4%), those treated at a SBHC had a faster time to treatment compared to CDPH STI clinics (median 17 days versus 28 days, respectively, p < .001).CONCLUSIONS
For students testing positive in the Chicago school‐based STI program, time to treatment is accelerated in locations with SBHCs.6.
Impacts of a School‐Wide,Peer‐Led Approach to Sexuality Education: A Matched Comparison Group Design 下载免费PDF全文
Dana Rotz PhD Brian Goesling PhD Jennifer Manlove PhD Kate Welti MPP Christopher Trenholm PhD 《The Journal of school health》2018,88(8):549-559
BACKGROUND
Teen Prevention Education Program (PEP) is a school‐wide, peer‐led comprehensive sexuality education program currently implemented in more than 50 schools across 2 states. Many teen pregnancy prevention researchers and practitioners view peer‐led programs as a promising approach for reducing teen pregnancy and associated sexual risk behaviors. However, prior research on the effectiveness of these programs indicates mixed results.METHODS
We randomly assigned schools to implement Teen PEP immediately (intervention group) or on a delayed schedule (comparison group) and used propensity score matching to improve the comparability of the study groups. We surveyed students at baseline and about 6 months after the program ended.RESULTS
Teen PEP did not significantly impact rates of sexual activity or unprotected sex; however, the program led to improvements in exposure to information about sexual health topics and knowledge of preventing pregnancy and transmission of sexually transmitted infections.CONCLUSIONS
Teen PEP succeeded in accomplishing some of its most proximal goals, increasing students' access to information and knowledge. However, we found little evidence that the program affects sexual risk‐taking within 6 months of its conclusion. Future research will examine the program's longer‐term impacts on sexual risk behaviors.7.
The School Contextual Effect of Sexual Debut on Sexual Risk‐Taking: A Joint Parameter Approach 下载免费PDF全文
Tianji Cai PhD Yisu Zhou PhD Michael D. Niño PhD Nichola Driver MPA PhD 《The Journal of school health》2018,88(3):200-207
BACKGROUND
Previous research has identified individual and school‐level characteristics that are associated with sexual risk‐taking, but the impact of school‐level mechanisms on sexual risk‐taking is not well understood. We examine the aggregated effects that early sex at the school level have on risky sexual behaviors.METHODS
We use 3 waves of data from the National Longitudinal Study of Adolescent Health. An individual's first sexual intercourse before age 15 was recorded along with various risky sexual behaviors at debut. Two variables at respondent's later stage of life were also included: having sex in exchange for drugs or money, and contraction of sexually transmitted disease (STD). Longitudinal analysis was conducted using a joint parameter model that tested unobserved school effects on individual behaviors simultaneously.RESULTS
An increase in early sexual initiation at the school level was associated with higher probability of sexual debut, along with increased involvement in sexual risk‐taking controlling for student family background.CONCLUSIONS
School behavioral mechanisms are directly related to sexual health behaviors among youth. Our findings have implications for school‐based interventions, education programs, and the role of parents.8.
Trend Disparities in Emotional Distress and Suicidality Among Sexual Minority and Heterosexual Minnesota Adolescents From 1998 to 2010 下载免费PDF全文
Carolyn M. Porta PhD MPH RN SANE‐A FAAN Ryan J. Watson PhD Marion Doull PhD Marla E. Eisenberg ScD MPH Nathan Grumdahl BSN RN PHN Elizabeth Saewyc PhD RN FSAHM FCAHS FAAN 《The Journal of school health》2018,88(8):605-614
BACKGROUND
Sexual minority young people have demonstrated higher rates of emotional distress and suicidality in comparison to heterosexual peers. Research to date has not examined trends in these disparities, specifically, whether there have been disparity reductions or increases and how outcomes have differed over time by sex and sexual orientation group.METHODS
Minnesota Student Survey data, collected from 9th and 12th graders in 3 cohorts (1998, 2004, 2010) were used to examine emotional distress and suicidality rates. Logistic regression analyses were completed to examine outcome changes over time within and across sexual orientation/sex groups.RESULTS
With few exceptions, sexual minority youth are at increased risk of endorsing emotional distress and suicidality indicators in each surveyed year between 1998 and 2010. Young people with both‐sex partners reported more emotional distress across all health indicators compared to their opposite‐sex partnered peers. With a few exceptions, gaps in disparities between heterosexual and sexual minority have not changed from 2004 to 2010.CONCLUSIONS
Disparities in emotional health persist among youth. Research is needed to advance understanding of mental health disparities, with consideration of sexual orientation differences and contextualized to sociocultural status and changes over time. Personalized prevention strategies are needed to promote adolescent mental health.9.
What's Physical Activity Got to Do With It? Social Trends in Less Active Students at Recess 下载免费PDF全文
Amelia Mays Woods PhD Gabriella M. McLoughlin MS Ben D. Kern PhD Kim C. Graber EdD 《The Journal of school health》2018,88(7):500-507
BACKGROUND
Public health concerns regarding childhood obesity and sedentary behavior make investigations of children's physical activity (PA) promotion crucial. School recess, a highly discretional time, plays a central role in shaping children's activity preferences.METHODS
Participants included 40 children (30 girls, 10 boys) from fourth and fifth grades, categorized as low active during recess (<26% moderate‐to‐vigorous PA [MVPA]). PA was measured via accelerometer (Actigraph wGT3X+) and activity choice gauged through a self‐report measure over a 3‐day period. To assess attitudes and perceptions of recess, individual interviews were conducted. Accelerometer data were analyzed into minutes and percentage of MVPA; interviews were transcribed verbatim and analyzed utilizing open and axial coding.RESULTS
Participants were active for 18% of recess, choosing activities that were primarily individual‐based. Interview data showed low active children attribute recess enjoyment to social interaction and time away from schoolwork as well as an intention to avoid other children who were unkind and/or caused social conflict.CONCLUSIONS
This study supports the importance of gaining a child's perspective of their own behavior, particularly those children classified as less active. Findings add a unique contribution to school health research through an innovative, child‐centered approach to explore perceptions of PA.10.
Young Ho Yun MD Yaeji Kim MA Jin A. Sim MS Soo Hyuk Choi BA Cheolil Lim PhD Joon‐ho Kang PhD 《The Journal of school health》2018,88(8):569-575
BACKGROUND
The objective of this study was to develop the School Health Score Card (SHSC) and validate its psychometric properties.METHODS
The development of the SHSC questionnaire included 3 phases: item generation, construction of domains and items, and field testing with validation. To assess the instrument's reliability and validity, we recruited 15 middle schools and 15 high schools in the Republic of Korea.RESULTS
We developed the SHSC questionnaire of 158 items categorized into 5 domains: (1) Governance and Infrastructure, (2) Need Assessment, (3) Planning, (4) Health Prevention and Promotion Program, and (5) Monitoring and Feedback. All SHSC domains and subdomains demonstrated acceptable reliability with good internal consistency. Each domain and subdomain except for “Planning” was associated significantly with students' health status. Most subdomains, including school health philosophy, school policy, communication, the evaluation system, and monitoring, were significantly and negatively associated with student absence.CONCLUSIONS
The SHSC shows significant association with the overall student health and can be useful in assessing comprehensive school health programs.11.
Ashley Chamberlin MS RDN Selena Nguyen‐Rodriguez PhD MPH Virginia B. Gray PhD RDN Wendy Reiboldt PhD Caitlin Peterson BS Donna Spruijt‐Metz PhD 《The Journal of school health》2018,88(7):493-499
BACKGROUND
Existing literature indicates a relationship between stress and emotional eating in adults, yet limited research has examined the impact of school‐related stress on emotional eating in adolescents. This study investigated the influence of academic factors on emotional eating among minority adolescents.METHODS
A survey was implemented among a sample of minority adolescents (N = 666) to investigate the relationship between emotional eating and 3 academic factors: academic self‐esteem, grade point average (GPA), and academic worries. Forced‐entry multiple linear regressions were used to test for relationships.RESULTS
Findings indicate that GPA, academic self‐esteem, and academic worries were related to emotional eating scores in adolescents. There were no significant differences in academic factors between emotional eaters and nonemotional eaters.CONCLUSIONS
Additional research is needed to further elucidate the complex interaction between emotional eating behavior and academics.12.
School Factors Associated With the Implementation of Integrated Pest Management‐Related Policies and Practices 下载免费PDF全文
BACKGROUND
Schools are particularly vulnerable to pests, but integrated pest management (IPM) can address pest problems. This study describes IPM policies and practices and the extent to which they are associated with school characteristics.METHODS
We analyzed data from the 2014 School Health Policies and Practices Study, a nationally representative survey of schools in the United States (N = 568, response rate = 69%). Pairwise comparisons assessed differences in pest prevention strategies by school characteristics.RESULTS
Nationwide, 55.3% of schools conducted campus‐wide inspections for pests at least monthly; 35.6% of schools notified staff, students, and families prior to each application of pesticides; and 56.1% of schools required custodial or maintenance staff to receive training on pest management practices that limit the use of pesticides. During the 12 months before the study, 46.5% of schools almost always or always used spot treatments and baiting rather than widespread applications of pesticides, and 36.8% of schools almost always or always marked indoor and outdoor areas that had been treated with pesticides. No clear pattern emerged for school characteristics associated with IPM policies and practices.CONCLUSIONS
The variation in implementation of IPM‐related policies and practices suggest opportunities for targeted education among school staff about IPM principles.13.
Composition of School Meals in Sweden,Finland, and Iceland: Official Guidelines and Comparison With Practice and Availability 下载免费PDF全文
Ragnheidur Juniusdottir MEd Agneta Hörnell PhD Ingibjorg Gunnarsdottir PhD Hanna Lagstrom PhD Maria Waling PhD Cecilia Olsson PhD Sanna Talvia PhD MSc MEd Anna S. Olafsdottir PhD 《The Journal of school health》2018,88(10):744-753
BACKGROUND
Nutritious and attractive school meals can improve health equality and public health. Current official guidelines and recommendations on food and nutrient composition of school meals in 3 Nordic countries; Sweden, Finland, and Iceland, are described and compared with actual practice, ie, availability of foods and nutrients in served reference meals in 3 selected areas in each country.METHODS
A country comparison was made between official guidelines, and actual practice was studied in participating schools. Reference portions of school meals (N = 170) provided in 24 compulsory schools were photographed and weighed. Food and nutrient availability were compared with official guidelines in each country.RESULTS
Emphasis of recommendations on whole‐grain bread in Sweden, whole grains in Finland, and fish in Iceland were reflected in food availability. The energy content of the meals provided was lower than guidelines and there was a large variation in energy content between days.CONCLUSIONS
The guidelines regarding food availability were quite well followed, but the large variation in energy and nutrient content of provided school meals between days indicates a need for standardization.14.
Effects of a School‐Based Pedometer Intervention in Adolescents: 1‐Year Follow‐Up of a Cluster‐Randomized Controlled Trial 下载免费PDF全文
Barbara Isensee PhD Vivien Suchert PhD Julia Hansen PhD Burkhard Weisser MD Reiner Hanewinkel PhD 《The Journal of school health》2018,88(10):717-724
BACKGROUND
Physical activity (PA) is one of the most important health behaviors that may be modified by each individual. To foster PA in adolescents, a school‐based intervention was evaluated.METHODS
A cluster‐randomized controlled trial with preassessment in 2014 and follow‐up assessment in 2015 included 29 schools with 1020 students (47.6% girls, mean age = 13.69 years). Intervention students received pedometers and monitored their steps for 12 weeks. Classes with the most steps were awarded. Primary outcomes included moderate‐to‐vigorous PA, out‐of‐school sports activities, active transport assessed through questionnaires, as well as cardiorespiratory fitness measured using the 20‐m shuttle‐run test and anthropometric data (weight, height, body fat, and waist circumference) assessed by study staff.RESULTS
Significant interaction terms between group and time were found for all 3 indicators of PA; intervention students showed a higher increase of PA than control students. The same pattern was shown for cardiorespiratory fitness, but the effect missed significance. A more favorable development for the intervention students was shown for body fat and waist‐to‐height ratio, while there was no effect on body mass index percentile.CONCLUSIONS
An easy way to administer school‐based PA program may enhance students' leisure‐time PA even 1 year after the intervention has ended.15.
Collaboration Challenges and Opportunities: A Survey of School Foodservice Directors and Community Health Coalition Members 下载免费PDF全文
BACKGROUND
The Healthy, Huger‐Free Kids Act (HHFKA) presents challenges for foodservice directors (FSDs) in sourcing and preparing foods that meet nutrition standards. Concurrently, community health coalition members (CHCs) are engaging schools through community and school nutrition initiatives. We hypothesized significant differences in perceptions between FSDs and CHCs related to implementation of HHFKA such that FSDs would perceive greater foodservice challenges, while CHCs would be more supportive of community nutrition initiatives.METHODS
A perceptions survey was administered by email to 528 FSDs and 334 CHCs during summer 2016. Experience, education level, urban/rural differences, school demographics, and involvement between FSDs and CHCs were compared.RESULTS
Overall, 132 FSDs and 80 CHCs responded (29.5% FSDs, 24.7% CHCs). Overall perception of HHFKA foodservice challenge ranged between neutral (eg, neither challenging nor unchallenging) to somewhat challenging, and did not differ between groups. CHCs were significantly more supportive of community nutrition initiatives, while FSDs responded neutrally.CONCLUSIONS
FSDs awareness of CHCs desire for collaboration may increase FSDs support for broader school nutrition initiatives such as school gardens, farm to school, and student/community engagement. There is great potential for integrating student and community health programs through partnerships.16.
Assessing School Wellness Policies and Identifying Priorities for Action: Results of a Bi‐State Evaluation 下载免费PDF全文
Susan P. Harvey PhD Deborah Markenson MS Cheryl A. Gibson PhD 《The Journal of school health》2018,88(5):359-369
BACKGROUND
Obesity is a complex health problem affecting more than one‐third of school‐aged youth. The increasing obesity rates in Kansas and Missouri has been particularly concerning, with efforts being made to improve student health through the implementation of school wellness policies (SWPs). The primary purpose of this study was to conduct a rigorous assessment of SWPs in the bi‐state region.METHODS
SWPs were collected from 46 school districts. The Wellness School Assessment Tool (WellSAT) was used to assess comprehensiveness and strength. Additionally, focus group discussions and an online survey were conducted with school personnel to identify barriers and supports needed.RESULTS
Assessment of the SWPs indicated that most school districts failed to provide strong and specific language. Due to these deficiencies, districts reported lack of enforcement of policies. Several barriers to implementing the policies were reported by school personnel; supports needed for effective implementation were identified.CONCLUSIONS
To promote a healthful school environment, significant improvements are warranted in the strength and comprehensiveness of the SWPs. The focus group discussions provided insight as to where we need to bridge the gap between the current state of policies and the desired beneficial practices to support a healthy school environment.17.
Amanda Terry PhD 《The Journal of school health》2018,88(4):289-295
BACKGROUND
The purpose of this study was to determine the impact of the coverage of state legislation and the expansiveness ratings of state model policies on the state‐level prevalence of bullying in schools.METHODS
The state‐level prevalence of bullying in schools was based on cross‐sectional data from the 2013 High School Youth Risk Behavior Survey. Multiple regression was conducted to determine whether the coverage of state legislation and the expansiveness rating of a state model policy affected the state‐level prevalence of bullying in schools.RESULTS
The purpose and definition category of components in state legislation and the expansiveness rating of a state model policy were statistically significant predictors of the state‐level prevalence of bullying in schools. The other 3 categories of components in state legislation—District Policy Development and Review, District Policy Components, and Additional Components—were not statistically significant predictors in the model.CONCLUSIONS
Extensive coverage in the purpose and definition category of components in state legislation and a high expansiveness rating of a state model policy may be important in efforts to reduce bullying in schools. Improving these areas may reduce the state‐level prevalence of bullying in schools.18.
Roderick T. Bartee PhD Kate A. Heelan PhD Bree L. Dority PhD 《The Journal of school health》2018,88(9):644-650
BACKGROUND
Research is emerging suggesting that fitness not only improves health, but enhances academic achievement in children. Many studies have found the strongest correlation with academic achievement to be aerobic fitness. The purpose of this study is to examine the influence of aerobic fitness and academic ranking on the association between improvements in students' aerobic fitness and their academic achievement.METHODS
Data were collected from 1152 second‐ through fifth‐grade students enrolled in 10 Midwestern schools. School‐fixed effects models were used to estimate the impact of improved aerobic fitness from the fall to the spring semester on students' spring percentile rankings in math and reading.RESULTS
Students whose progressive aerobic cardiovascular endurance run improved from the fall to spring semester moved up the national spring math percentile rankings by 2.71 percentiles (p < .001) for all students, 4.77 (p < .001) for less‐fit students, and 3.53 (p < .05) for lower performing math students. No statistically significant relationship was found between improved aerobic fitness and reading achievement.CONCLUSIONS
Improving fitness could potentially have the greatest academic benefit for those elementary students who need it the most—the less fit and the lower academic performers.19.
National Analysis of State Health Policies on Students' Right to Self‐Carry and Self‐Administer Asthma Inhalers at School 下载免费PDF全文
Madeleine M. Toups MPP Valerie G. Press MD MPH Anna Volerman MD 《The Journal of school health》2018,88(10):776-784
BACKGROUND
Asthma has no known cure, and though manageable, it disrupts the everyday lives of over 6 million US children. Because children spend more than half of their waking hours in school, students must be able to carry and administer their inhaler at school to manage their asthma.METHODS
This policy paper is a comprehensive review of all 50 states and the District of Columbia's laws and policies for the self‐carry and administration of quick‐relief asthma inhalers among children in prekindergarten through 12th grade.RESULTS
All states permit students to carry and administer their inhalers at school, although each state differs in their development and implementation of policies for asthma self‐management at school. This review examines how states regulate self‐carry policies by looking at policy development, regulated school systems, relevant stakeholders, required medical records, and school liability.CONCLUSIONS
Each state's laws have nuances that create gray areas, increasing the potential of misinterpreted or incorrectly implemented policies for asthma self‐management at school. As a result, children may not have immediate access to their inhaler for symptom management or in an emergency. State policymakers should reform current laws to remove barriers for students to carry and use inhalers at school.20.
Sarah H. Green MPH Giridhar Mallya MD MSHP Colleen Brensinger MS Ann Tierney MS Karen Glanz PhD MPH 《The Journal of school health》2018,88(4):281-288