Cortico-basal ganglia white matter microstructure is linked to restricted repetitive behavior in autism spectrum disorder.

BACKGROUND: Restricted repetitive behavior (RRB) is one of two behavioral domains required for the diagnosis of autism spectrum disorder (ASD). Neuroimaging is widely used to study brain alterations associated with ASD and the domain of social and communication deficits, but there has been less work regarding brain alterations linked to RRB. METHODS: We utilized neuroimaging data from the National Institute of Mental Health Data Archive to assess basal ganglia and cerebellum structure in a cohort of children and adolescents with ASD compared to typically developing (TD) controls. We evaluated regional gray matter volumes from T1-weighted anatomical scans and assessed diffusion-weighted scans to quantify white matter microstructure with free-water imaging. We also investigated the interaction of biological sex and ASD diagnosis on these measures, and their correlation with clinical scales of RRB. RESULTS: Individuals with ASD had significantly lower free-water corrected fractional anisotropy (FAT) and higher free-water (FW) in cortico-basal ganglia white matter tracts. These microstructural differences did not interact with biological sex. Moreover, both FAT and FW in basal ganglia white matter tracts significantly correlated with measures of RRB. In contrast, we found no significant difference in basal ganglia or cerebellar gray matter volumes. LIMITATIONS: The basal ganglia and cerebellar regions in this study were selected due to their hypothesized relevance to RRB. Differences between ASD and TD individuals that may occur outside the basal ganglia and cerebellum, and their potential relationship to RRB, were not evaluated. CONCLUSIONS: These new findings demonstrate that cortico-basal ganglia white matter microstructure is altered in ASD and linked to RRB. FW in cortico-basal ganglia and intra-basal ganglia white matter was more sensitive to group differences in ASD, whereas cortico-basal ganglia FAT was more closely linked to RRB. In contrast, basal ganglia and cerebellar volumes did not differ in ASD. There was no interaction between ASD diagnosis and sex-related differences in brain structure. Future diffusion imaging investigations in ASD may benefit from free-water estimation and correction in order to better understand how white matter is affected in ASD, and how such measures are linked to RRB.

Reduction of restricted repetitive behavior by environmental enrichment: Potential neurobiological mechanisms.

Restricted repetitive behaviors (RRB) are one of two diagnostic criteria for autism spectrum disorder and common in other neurodevelopmental and psychiatric disorders. The term restricted repetitive behavior refers to a wide variety of inflexible patterns of behavior including stereotypy, self-injury, restricted interests, insistence on sameness, and ritualistic and compulsive behavior. However, despite their prevalence in clinical populations, their underlying causes remain poorly understood hampering the development of effective treatments. Intriguingly, numerous animal studies have demonstrated that these behaviors are reduced by rearing in enriched environments (EE). Understanding the processes responsible for the attenuation of repetitive behaviors by EE should offer insights into potential therapeutic approaches, as well as shed light on the underlying neurobiology of repetitive behaviors. This review summarizes the current knowledge of the relationship between EE and RRB and discusses potential mechanisms for EE's attenuation of RRB based on the broader EE literature. Existing gaps in the literature and future directions are also discussed.

An Environmental Scan of Existing Canadian Childcare Resources Targeting Improvements in Health Behaviours.

The objective was to conduct an environmental scan of existing Canadian childcare resources targeting nutrition, physical activity, sedentary behaviour, and/or sleep. A comprehensive search plan was conducted that involved four search strategies: (1) grey literature databases, (2) customized Google search engines, (3) targeted websites, and (4) consultation with content experts. A resource (i.e., information, materials) must have been created by government or an organization/agency within Canada, available in English, intended for childcare educators or directors working with children ≤ 5 years of age, and focused on targeting improvements in nutrition, physical activity, sedentary behaviour, and/or sleep. The quality of each included resource was assessed using a modified version of the Authority, Accuracy, Coverage, Objectivity, Date, Significance checklist. A total of 192 eligible resources were included. Most resources targeted only nutrition (n = 101) or physical activity (n = 60), and few resources targeted only sedentary behaviour (n = 2) or sleep (n = 1). The remaining 28 resources targeted more than one health behaviour. The 4 most common topics of resources were menu/meal planning (n = 55), healthy nutrition practices/environment (n = 37), physical activities/games (n = 33), and nutrition/food literacy (n = 20). Only 52 included resources cited evidence. One-third of the included resources (n = 64) were rated as high quality, including 55 that received a point for the significance criterion. Therefore, numerous high quality Canadian childcare resources exist for nutrition and physical activity. Future resource development is needed for sedentary behaviour and sleep. Findings can assist future intervention work and the database of resources can be utilized by relevant stakeholders to support other childcare initiatives. Supplementary Information: The online version contains supplementary material available at 10.1007/s10643-021-01266-2.

Comprehensive Nutrition Interventions in First Nation-Operated Schools in Canada.

Comprehensive school-based nutrition interventions offer a promising strategy to support healthy eating for First Nations children. A targeted strategic review was performed to identify nutrition interventions in 514 First Nation-operated schools across Canada through their websites. Directed content analysis was used to describe if interventions used 1 or more of the 4 components of the Comprehensive School Health (CSH) framework. Sixty schools had interventions. Nearly all (n = 56, 93%) schools offered breakfast, snack, and (or) lunch programs (social and physical environment). About one-third provided opportunities for students to learn about traditional healthy Indigenous foods and food procurement methods (n = 18, 30%) (teaching and learning) or facilitated connections between the school and students' families or the community (n = 16, 27%) (partnerships and services). Few schools (n = 10, 17%) had a nutrition policy outlining permitted foods (school policy). Less than 1% (n = 3) of interventions included all 4 CSH components. Results suggest that most First Nation-operated schools provide children with food, but few have nutrition interventions that include multiple CSH components. First Nation-operated schools may require additional financial and (or) logistical support to implement comprehensive school-based nutrition interventions, which have greater potential to support long-term health outcomes for children than single approaches.

Gaps in Nutrition Policy Implementation in Childcare Centres in The Edmonton Metropolitan Region: A Cross-Sectional Survey.

Purpose: To describe (i) nutrition policies in childcare centres, (ii) the resources and processes used to enable policy implementation, and (iii) the association between policy implementation and childcare centres' or administrators' characteristics.Methods: Between October 2018 and June 2019 a web-based survey that addressed nutrition policy, policy implementation, and sociodemographic characteristics was sent to eligible childcare programs (centre-based and provided meals) in the Edmonton (Alberta) metropolitan region. The survey was pretested and pilot tested. Statistical tests examined the relationship between policy implementation with centres' and administrators' characteristics.Results: Of 312 childcare centres that received the survey invitation, 43 completed it. The majority of centres had a nutrition policy in place (94%). On average, centres had about 9 of the 17 implementation resources and processes assessed. Most often administrators reported actively encouraging the implementation of the nutrition policy (n = 35; 87%) and least often writing evaluation reports of the implementation of the nutrition policy (n = 9; 22%). Administrator's education level was associated with implementation total score (p = 0.009; Kruskal-Wallis).Conclusion: Most childcare centres had a nutrition policy in place, but many lacked resources and processes to enable policy implementation. Additional support is required to improve nutrition policy development and implementation.

Implementation of Healthy Eating Interventions in Center-Based Childcare: The Selection, Application, and Reporting of Theories, Models, and Frameworks.

PURPOSE: To explore the selection, use, and reporting of theories, models, and frameworks (TMFs) in implementation studies that promoted healthy eating in center-based childcare. DATA SOURCE: We searched 11 databases for articles published between January 1990 and October 2018. We also conducted a hand search of studies and consulted subject matter experts. STUDY INCLUSION AND EXCLUSION CRITERIA: We included studies in center-based settings for preschoolers that addressed the development, delivery, or evaluation of interventions or implementation strategies related to healthy eating and related subjects and that explicitly used TMF. Exclusion criteria include not peer reviewed or abstracts and not in English, French, German, and Korean. DATA EXTRACTION: The first author extracted the data using extraction forms. A second reviewer verified data extraction. DATA SYNTHESIS: Direct content analysis and narrative synthesis. RESULTS: We identified 8222 references. We retained 38 studies. Study designs included quasi-experimental, randomized controlled trials, surveys, case studies, and others. The criteria used most often for selecting TMFs were description of a change process (n = 12; 23%) or process guidance (n = 8; 15%). Theories, models, and frameworks used targeted different socioecological levels and purposes. The application of TMF constructs (e.g., factors, steps, outcomes) was reported 69% (n = 34) of times. CONCLUSION: Reliance on TMFs focused on individual-level, poor TMF selection, and application and reporting for the development of implementation strategies could limit TMF utility.

School-based nutrition interventions for Indigenous children in Canada: a scoping review.

BACKGROUND: Indigenous children in Canada (First Nations, Inuit, and Métis) are disproportionately affected by nutrition-related chronic diseases such as obesity and diabetes. Comprehensive school-based nutrition interventions offer a promising strategy for improving children's access to healthy foods and sustaining positive eating behaviors. However, little is known about school-based nutrition interventions for Indigenous children. The objectives of this scoping review were to identify school-based nutrition interventions for Indigenous children in Canada and describe their components. METHODS: The scoping review consisted of searches in seven peer-reviewed databases and a general web search for grey literature. Eligibility criteria were applied by two reviewers, and data were extracted and charted by one reviewer using components of the comprehensive school health approach (social and physical environment, teaching and learning, policy, partnerships and services) and additional components with relevance to Indigenous interventions (cultural content, Indigenous control and ownership, funding source, evaluation). Numerical and descriptive summaries were used to present findings. RESULTS: Thirty-four unique interventions met the inclusion criteria. The majority (97%) of interventions targeted the social and physical environment, most often by offering food programs. Over half of interventions also incorporated teaching and learning (56%) and partnerships and services (59%), but fewer included a policy component (38%). Many interventions included a cultural component (56%) and most (62%) were owned and controlled by Indigenous communities (62%). Finally, over half of interventions disclosed their source(s) of funding (59%), but less than half (41%) included an evaluation component. CONCLUSIONS: The review suggests that school-based interventions for Indigenous children can be more comprehensive by incorporating culturally relevant nutrition education and professional development opportunities for teachers, written school nutrition policies, and activities that actively engage families and community members. The continued focus on Indigenous control and ownership and incorporation of content specific to individual communities may enhance cultural relevancy and sustainability of interventions. Furthermore, there is a need to increase intervention evaluation and the sharing of resources related to funding. These recommendations may be used by communities, as well as by researchers and professionals working with communities, in developing comprehensive school-based nutrition interventions to improve the eating behaviors of Indigenous children.

Screening for Pediatric Malnutrition at Hospital Admission: Which Screening Tool Is Best?

BACKGROUND: Identifying children at malnutrition risk on admission to hospital is considered best practice; however, nutrition screening in pediatric populations is not common. The aim of this study was to determine which screening tool is able to identify children with malnutrition on admission to hospital. METHODS: A nurse administered 2 pediatric nutrition screening tools, Screening Tool for Risk on Nutritional Status and Growth (STRONGkids) and Pediatric Nutrition Screening Tool (PNST) to patients admitted to medicine and surgery units (n = 165). The Subjective Global Nutritional Assessment (SGNA) was then completed by a dietitian, blinded to the results of the screens. Sensitivity, specificity, and κ were calculated for both screening tools against the SGNA. A receiver operating characteristic (ROC) curve assessed alternate cutoffs for each tool. Length of hospital stay (LOS) was used to assess prospective validity. RESULTS: Using the recommended cutoffs, the sensitivity of STRONGkids was 89%, specificity 35%, and κ 0.483. The sensitivity of PNST was 58%, specificity 88%, and κ 0.601. Using adjusted cutoffs, PNST's sensitivity improved to 87%, specificity 71%, and κ 0.681, and STRONGkids specificity improved to 61%, sensitivity 80%, and κ 0.5. Children identified at nutrition risk had significantly longer LOS (P < 0.05). CONCLUSION: This study showed neither tool was appropriate for clinical use based on published cutoffs. By adjusting the cutoffs using ROC curve analysis, both tools improved overall agreement with the SGNA without significantly impacting the prospective validity. PNST with adjusted cutoffs is the most appropriate for clinical use in this population.

Alexander First Nations Parents' Perceptions of a School Nutrition Policy.

Purpose: A school nutrition policy (SNP) is one promising school-based health promotion strategy to improve the food environments of First Nations children. The aim of this study was to explore First Nations parents' perceptions of a SNP. Methods: A process evaluation of policy implementation was conducted using a mixed-methods design. Parents (n = 83) completed a 19-question survey to capture their perceptions of the policy. Survey responses informed questions in an 11-question semi-structured interview guide. Transcripts from interviews with parents (n = 10) were analyzed using content analysis to identify barriers and facilitators to policy implementation. Results: Parents were supportive of the SNP and the school's food programs, which they perceived as helping to address community concerns related to nutrition. However, some parents opposed the restriction of unhealthy foods at school celebrations and fundraisers. In addition, despite being aware of the SNP, parents were unable to demonstrate an understanding of the SNP content. Finally, parents struggled to provide their children with healthy foods to bring to school due to lack of affordable and accessible food in the community. Conclusions: Although SNPs may be well-received in First Nations communities, their implementation must be supported by parent involvement and consideration of wider socioeconomic conditions.

First Nations students' perceptions of school nutrition policy implementation: A mixed methods study.

AIM: School nutrition policies can improve healthy food access for Indigenous First Nations children in Canada. This study explored First Nations students' perceptions of a school nutrition policy. METHODS: The research was a process evaluation of school nutrition policy implementation using a mixed-methods design. Students in grades 4-12 (n = 94) completed a 17-question survey to capture their perceptions of the policy. Survey data informed an 11-question semi-structured interview guide. Transcripts from interviews with students (n = 20) were analysed using content analysis to identify barriers and facilitators to policy implementation. RESULTS: Key facilitating factors to policy implementation were student support for the policy and taste preferences. Most students (87%) agreed that only healthy foods should be served at school and, in interviews, expressed a preference for healthy food choices. Barriers to policy implementation included foods available at school and lack of communication between students and their teachers and parents. Half (50%) of surveyed students reported that their eating habits at school were average; interviews explained that their diets could be improved by consuming more fruit and vegetables at school. Both surveys and interviews found that communication between students and their parents and teachers about what they ate and drank at school was low. CONCLUSIONS: To support children's healthy eating at school, the school nutrition policy could provide clear guidelines on foods permissible in the school, while considering social and environmental barriers to healthy eating. The involvement of First Nations children in the implementation and evaluation of school nutrition policies is recommended.

Psychosocial Determinants of Adherence to Preventive Dental Attendance for Preschool Children Among Filipino Immigrants in Edmonton, Alberta.

Barriers to accessing oral healthcare are public health concerns faced by minorities and immigrants due to socioeconomic marginalization. Therefore, we explored how immigrant parents in Alberta-Edmonton's Filipino community experience adherence to preventive dental attendance (PDA) for their preschool children and the psychosocial factors influencing parental adherence. METHODS: We employed a qualitative focused ethnography design. Data were collected through interviews and focus groups. Audiotapes of sessions were transcribed verbatim and concurrent thematic data analysis was performed. RESULTS: Stressors, resources, paradox and structural barriers comprised emergent psychosocial themes. Upon arriving in Canada, most Filipino parents held low-priority attitudes and perceptions toward PDA. After migration, however, they embraced new knowledge about the importance of PDA for their children. DISCUSSION: Filipino parents were open to the Western model of preventive oral healthcare, with the duration of their time in Canada playing a key role in promoting regular dental visits for their children.

Food insecure student clients of a university-based food bank have compromised health, dietary intake and academic quality.

AIM: University and college students in wealthy countries may be vulnerable to financial food insecurity. If food insecure students have suboptimal health, their ability to learn and excel in their education could be compromised. This Canadian study examined the relationship of food security status to diet and self-perceived health and academic quality among students receiving emergency food hampers from the Campus Food Bank at University of Alberta. METHODS: A convenience sample of 58 students completed a survey. RESULTS: Of participating students, 10.3% were food secure, 44.8% were moderately food insecure and 44.8% were severely food insecure. Overall, 32.8% rated their general health as fair/poor, 27.6% rated their mental health as fair/poor and 60.3% indicated at least one adverse academic outcome of not having enough money for food. Compared to other participating students, students with severe food insecurity had a greater likelihood of fair/poor general health (odds ratios (OR) 4.03, 95% confidence intervals (CI) 1.10-14.78); fair/poor mental health (OR 4.96, 95% CI 1.28-19.19); being unable to concentrate in class or during an exam (73.1% vs 40.6%, χ2 = 6.12, P = 0.013); relying on food hampers (34.6% vs 9.7%, χ2 = 5.57, P = 0.018); and, consuming fewer daily fruits, vegetables and legumes (2.12 vs 2.97 cup equivalents, P = 0.009). CONCLUSIONS: Food insecurity compromises students' health, diet and academic quality. Campus food banks are not the solution to student hunger. Governmental and university-based programmes and policies are needed to improve the food security situation of university students.

A Comparison of Characteristics and Food Insecurity Coping Strategies between International and Domestic Postsecondary Students Using a Food Bank Located on a University Campus.

PURPOSE: We compared food insecurity status, coping strategies, demographic characteristics, and self-rated health of international and domestic postsecondary students requesting emergency food hampers from a campus food bank (CFB). METHODS: We collected data from a cross-sectional convenience sample of domestic and international students who accessed the CFB at the University of Alberta. RESULTS: Food insecurity was prevalent (international students: n = 26/27 (96.2%), domestic students: n = 31/31 (100%)). Compared with their domestic peers, international students were less likely to rate their mental health negatively (14.8% vs 38.7%, P = 0.04). The primary income source was government loans (54.8%) for domestic students and research assistantships (33.3%) for international students. To cope with not having enough money for food, the majority of both student groups delayed bill payments or buying university supplies, applied for loans or bursaries, purchased food on credit, or worked more. International students were less likely to ask friends or relatives for food (48.1% vs 77.4%, P = 0.02). CONCLUSIONS: Domestic and international students mostly used similar coping strategies to address food insecurity; however, they paid for their education using different income sources. Distinct strategies for international and domestic students are required to allow more students to cover their educational and living expenses.

Assessing cognitive function in adults during or following chemotherapy: a scoping review.

PURPOSE: The purpose of this scoping review was to determine the feasibility of conducting a systematic review of approaches for screening or assessing cognitive function that were comprehensive and that could be incorporated into clinical settings. METHODS: Using the scoping review approach developed by Arksey and O'Malley, we searched Ovid Embase 1980-, Ovid PsycINFO 1806-, Ovid Health and Psychosocial Instruments 1985-, EBSCOhost CINAHL, ISI Web of Science (Science Citation Index 1900-), Social Sciences Citation Index 1900-, Conference Proceedings Citation Index -Science 1990-, Conference Proceedings Citation Index -Social Science & Humanities 1990-, Scopus 1960-, with no language restrictions. Searches were conducted in April 2009 and updated in February 2013. Studies of adults treated with chemotherapy that included at least seven of the eight domains of cognition were included. RESULTS: Eleven studies met inclusion criteria. No screening tools suitable for inclusion in a clinic were identified. The studies reviewed varied by inclusion/exclusion criteria, design, and instruments for assessing cognitive function, and thus, there are not yet enough studies to warrant a systematic review on this topic.

Tools and resources for preventing childhood obesity in primary care: A method of evaluation and preliminary assessment.

OBJECTIVES: To pilot-test a mixed methods approach to evaluate tools and resources (TRs) that healthcare providers (HCPs) use for preventing childhood obesity in primary care, and report a preliminary descriptive assessment of commonly-used TRs. METHODS: This mixed methods study included individual, semi-structured interviews with purposefully-sampled HCPs in Alberta, Canada; interviews were digitally recorded and analyzed thematically (phase I). Two independent reviewers used three assessment checklists to evaluate commonly-used TRs (phase II). HCPs provided feedback on our coding scheme and checklist data (phase III). RESULTS: Three themes described how HCPs (n=19) used TRs: purpose of use (e.g., clinical support), logistical factors (e.g., accessibility), and decision to use (e.g., suitability). The latter theme overlapped with constructs of suitability on the checklists. Overall, participants used 15 TRs, most of which scored 'average' on the checklists. CONCLUSION: Phases I and II provided unique insights on the evaluation of TRs used for preventing childhood obesity. Criteria on the checklists overlapped with HCPs' perceptions of TR suitability, but did not reflect logistical factors that influenced their use of TRs. PRACTICE IMPLICATIONS: Developers of TRs should collaborate with HCPs to ensure that subjective and objective criteria are used to optimize TR suitability in the primary care setting.

The Impact of School Gardening on Cree Children's Knowledge and Attitudes toward Vegetables and Fruit.

PURPOSE: School-based interventions may increase children's preferences for vegetables and fruit (V&F). This Canadian study measured changes in Indigenous First Nations schoolchildren's V&F knowledge, preferences, and home consumption following the implementation of a gardening and V&F snack program. METHODS: At baseline, 7 months, and 18 months, children in grades 1-6 (i) listed at least 5 V&F they knew, (ii) tasted and indicated their preferences towards 9 vegetables and 8 fruit using a 6-point Likert scale, and (iii) indicated their home consumption of 17 V&F. RESULTS: At all 3 time points, 56.8% (n = 66/116) of children provided data. Children listed a greater number of V&F at 18 months (4.9 ± 0.1) than at baseline (4.5 ± 1.0) or 7 months (4.7 ± .07) (F(1.6,105.6) = 6.225, P < 0.05). Vegetable preferences became more positive between baseline (37.9 ± 9.3) and 7 months (39.9 ± 9.2), but returned to baseline levels at 18 months (37.3 ± 8.7) (F(1.6,105.8) = 4.581, P < 0.05). Fruit preferences at 18 months (42.7 ± 3.0) were greater than at baseline (41.1 ± 4.3) and at 7 months (41.9 ± 5.1) (F(1.7,113.3) = 3.409, P < 0.05). No change in V&F consumption occurred at home. CONCLUSIONS: Despite improvements in V&F knowledge and preferences, home consumption of V&F did not occur. Complementing school-based programs with home-based components may be needed to influence V&F intake of children.

How do Student Clients of a University-based Food Bank Cope with Food Insecurity?

PURPOSE: To describe the food security status, food insecurity coping strategies, characteristics, and experiences of student clients of the Campus Food Bank (CFB) at the University of Alberta in Edmonton, Alberta, Canada. METHODS: A convenience sample of 58 students completed a survey from April 2013 to April 2014. Food security status was determined using the "Adult Food Security Survey Module". RESULTS: Ninety percent of CFB student clients who participated in this study were food insecure, which included both moderately and severely food insecure groups. The most prevalent coping strategies for food insecurity included applying for a loan or bursary (86.2%), seeking employment or working more hours (84.5%), and purchasing food using a credit card (77.6%). Participants were a diverse mix of students, including graduate students (50.0%), international students (46.6%), and caregivers of children (24.1%). The most common primary sources of income were government student loans (29.3%) and research assistantships (20.7%). Most participants (82.8%) liked the food they received from the food bank. CONCLUSIONS: Food insecurity is highly prevalent among student clients of this university-based food bank. Students used a variety of coping strategies to increase their disposable income, highlighting the need for additional strategies to alleviate food insecurity among vulnerable students.

Changing Dietary Habits of Alberta Nutrition Students Enrolled in a Travel Study Program in Italy.

PURPOSE: This study describes dietary changes among university students who completed a travel study program. METHODS: Seventeen undergraduate nutrition students travelled from Edmonton to Italy for 6 weeks to take 2 courses on the Mediterranean diet. In both locations students completed a 24-h dietary recall and a Food Frequency Questionnaire to assess their Mediterranean Diet Quality Index Score (MDQIS). A MDQIS of 48 indicates perfect adherence to eating patterns of the Traditional Healthy Mediterranean Diet Pyramid (THMDP). RESULTS: While in Italy students altered their diets in positive ways (increased consumption of fish and seafood (P = 0.002), wine (P < 0.0001), and olive oil (P = 0.001)) and negative ways (increased consumption of sweets (P = 0.027), poultry (P = 0.001), and meat (P = 0.049)) relative to the THMDP. Students had a significant increase in the percentage of energy from polyunsaturated and monounsaturated fatty acids and alcohol. The MDQIS was low in Edmonton (21.9 ± 3.7) and Italy (22.9 ± 3.9). CONCLUSIONS: The overall dietary pattern of students did not adhere to the THMDP. Education about the THMDP and living in Italy for 6 weeks was insufficient to change students' dietary patterns to one characterized as traditional Mediterranean. The findings highlight the challenges of implementing dietary changes even with nutrition education and increased food access.

A school gardening and healthy snack program increased Aboriginal First Nations children's preferences toward vegetables and fruit.

OBJECTIVE: The researchers evaluated the impact of a 7-month gardening and 4-month vegetable and fruit snack program on Aboriginal First Nations children's home consumption and preferences toward vegetables and fruit. METHODS: The intervention was based on the Social Cognitive Theory. Children in grades 1-6 planted and tended classroom container gardens and prepared and ate what grew. At baseline and 7 months later, children tasted and rated 17 vegetables and fruit using a Likert scale and indicated whether they ate each food at home. RESULTS: Data were collected from 76 of 116 children (65.5%). Preference scores for vegetables, fruit, and vegetables and fruit combined increased over the 7 months (P < .017). Self-reported home consumption did not change. CONCLUSIONS AND IMPLICATIONS: School interventions have the potential to increase children's preferences for vegetables and fruit. Family participation is likely required, along with increased community availability of produce, to promote home consumption.

Organizational characteristics and processes are important in the adoption of the Alberta Nutrition Guidelines for Children and Youth in child-care centres.

OBJECTIVE: The objective of the present study was to gain an understanding of the organizational characteristics and processes in two child-care centres that may influence adoption of the Alberta Nutrition Guidelines for Children and Youth (ANGCY). DESIGN: In-depth qualitative case studies. Data were collected through direct observations, key informant interviews and field notes. Diffusion of Innovations theory guided the evaluation and intrinsic case analysis. SETTING: Two urban child-care centres in Edmonton, Alberta, Canada identified as exemplary early adopter cases. SUBJECTS: Ten key informants comprised of directors, junior and senior staff members participated in interviews. RESULTS: Organizational processes such as leadership, networking and knowledge brokering, health champions and organizational culture positively influenced adoption behaviour in child-care centres. A key determinant influencing organizational behaviour within both centres was the directors' strong leadership. Acceptance of and adherence to the guidelines were facilitated by organizational factors, such as degree of centralization, formalization and complexity, level of staff training and education. Knowledge brokering by directors was important for transferring and exchanging information across the centre. All child-care staff embraced their informal role as health champions as essential to supporting guideline adherence and encouraging healthy food and eating environments. CONCLUSIONS: Organizational processes and characteristics such as leadership, knowledge brokering and networking, organizational culture and health champions played an important role in the adoption of nutrition guidelines in child-care centres. The complex interplay of decision making, organization of work and specialization of roles influenced the extent to which nutrition guidelines were adopted.