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Carducci B, Dominguez G, Kidd E, Oh C, Jain R, Khan A, Bhutta ZA. Promoting healthy school food environments and nutrition in Canada: a systematic review of interventions, policies, and programs. Nutr Rev 2024:nuae030. [PMID: 38767979 DOI: 10.1093/nutrit/nuae030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024] Open
Abstract
CONTEXT The school food environment is a critical interface for child and adolescent nutrition, and there is a need to understand existing literature on Canadian school food environments to identify equity gaps and opportunities, and empower decision-makers to plan for future action. OBJECTIVE Literature on Canadian school food and nutrition interventions, policies, programs, and their effects on diets and nutritional status are synthesized and appraised in this systematic review. DATA SOURCES A search strategy was developed for each database used (Medline, Embase, PsycINFO, ERIC, Cochrane Collaboration, Canadian Electronic Library, BiblioMap), with a combination of free text and controlled vocabulary, for articles published from 1990 to 2021. Unpublished data and grey literature were also searched. DATA EXTRACTION Quantitative and qualitative studies with an observational or intervention study design, reviews, or program evaluations conducted in Canadian schools with participants aged 5-19.9 years were included. Key study characteristics and risk of bias were extracted independently by 2 investigators using a standardized tool. DATA ANALYSIS A total of 298 articles were included (n = 192 peer reviewed and 106 from the grey literature), which were mostly conducted in Ontario (n = 52), British Columbia (n = 43), and Nova Scotia (n = 28). Twenty-four interventions, 5 nonevaluated programs, and 1 policy involved Indigenous populations. Overall, 86 articles measured and reported on effectiveness outcomes, including dietary intake; anthropometry; knowledge, attitudes, and practices; and physical activity. The literature remains largely heterogenous and primarily focused on nutrition education programs that use subjective assessments to infer changes in nutrition. A key facilitator to implementation and sustainability was community engagement, whereas key barriers were staff capacity, access to resources and funding, and consistent leadership. CONCLUSIONS This review provides insight into Canadian school food and nutrition interventions, programs, and policies and uncovers important evidence gaps that require careful examination for future evaluations. Governments must create supportive environments that optimize nutrition for children and adolescents through equitable policies and programs. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42022303255.
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Affiliation(s)
- Bianca Carducci
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research, and Learning, Toronto, ON, Canada
- Department of Nutritional Sciences, University of Toronto, Faculty of Medicine, University of Toronto, Medical Sciences Building, Toronto, ON, Canada
| | - Georgia Dominguez
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research, and Learning, Toronto, ON, Canada
| | - Emily Kidd
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research, and Learning, Toronto, ON, Canada
| | - Christina Oh
- Western University, Schulich School of Medicine and Dentistry, London, ON, Canada
| | - Reena Jain
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research, and Learning, Toronto, ON, Canada
| | - Amira Khan
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research, and Learning, Toronto, ON, Canada
- Department of Nutritional Sciences, University of Toronto, Faculty of Medicine, University of Toronto, Medical Sciences Building, Toronto, ON, Canada
| | - Zulfiqar A Bhutta
- Centre for Global Child Health, Hospital for Sick Children, Peter Gilgan Centre for Research, and Learning, Toronto, ON, Canada
- Department of Nutritional Sciences, University of Toronto, Faculty of Medicine, University of Toronto, Medical Sciences Building, Toronto, ON, Canada
- Centre of Excellence in Women, and Child Health, Aga Khan University, Karachi, Pakistan
- Dalla Lana School of Public, Health University of Toronto Health Sciences Building, Toronto, ON, Canada
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Vaillancourt C, Ahmed M, Kirk S, Labonté MÈ, Laar A, Mah CL, Minaker L, Olstad DL, Potvin Kent M, Provencher V, Prowse R, Raine KD, Schram A, Zavala-Mora D, Rancourt-Bouchard M, Vanderlee L. Food environment research in Canada: a rapid review of methodologies and measures deployed between 2010 and 2021. Int J Behav Nutr Phys Act 2024; 21:18. [PMID: 38373957 PMCID: PMC10875887 DOI: 10.1186/s12966-024-01558-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 01/03/2024] [Indexed: 02/21/2024] Open
Abstract
Numerous research methodologies have been used to examine food environments. Existing reviews synthesizing food environment measures have examined a limited number of domains or settings and none have specifically targeted Canada. This rapid review aimed to 1) map research methodologies and measures that have been used to assess food environments; 2) examine what food environment dimensions and equity related-factors have been assessed; and 3) identify research gaps and priorities to guide future research. A systematic search of primary articles evaluating the Canadian food environment in a real-world setting was conducted. Publications in English or French published in peer-reviewed journals between January 1 2010 and June 17 2021 and indexed in Web of Science, CAB Abstracts and Ovid MEDLINE were considered. The search strategy adapted an internationally-adopted food environment monitoring framework covering 7 domains (Food Marketing; Labelling; Prices; Provision; Composition; Retail; and Trade and Investment). The final sample included 220 articles. Overall, Trade and Investment (1%, n = 2), Labelling (7%, n = 15) and, to a lesser extent, Prices (14%, n = 30) were the least studied domains in Canada. Among Provision articles, healthcare (2%, n = 1) settings were underrepresented compared to school (67%, n = 28) and recreation and sport (24%, n = 10) settings, as was the food service industry (14%, n = 6) compared to grocery stores (86%, n = 36) in the Composition domain. The study identified a vast selection of measures employed in Canada overall and within single domains. Equity-related factors were only examined in half of articles (n = 108), mostly related to Retail (n = 81). A number of gaps remain that prevent a holistic and systems-level analysis of food environments in Canada. As Canada continues to implement policies to improve the quality of food environments in order to improve dietary patterns, targeted research to address identified gaps and harmonize methods across studies will help evaluate policy impact over time.
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Affiliation(s)
- Caroline Vaillancourt
- École de Nutrition, Centre de Nutrition, Santé et Société (NUTRISS), Université Laval, 2425 Rue de L'Agriculture, Québec, QC, G1V 0A6, Canada
| | - Mavra Ahmed
- Department of Nutritional Sciences, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada
| | - Sara Kirk
- School of Health and Human Performance, Dalhousie University, 6230 South Street, Kjipuktuk (Halifax), NS, B3H 4R2, Canada
| | - Marie-Ève Labonté
- École de Nutrition, Centre de Nutrition, Santé et Société (NUTRISS), Université Laval, 2425 Rue de L'Agriculture, Québec, QC, G1V 0A6, Canada
| | - Amos Laar
- Department of Population, Family and Reproductive Health, School of Public Health, University of Ghana, P. O. Box LG 13, Legon, Accra, Ghana
| | - Catherine L Mah
- School of Health Administration, Dalhousie University, 5850 College Street, Halifax, NS, B3H 4R2, Canada
| | - Leia Minaker
- School of Planning, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3T1, Canada
| | - Dana Lee Olstad
- Department of Community Health Sciences, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada
| | - Monique Potvin Kent
- School of Epidemiology and Public Health, University of Ottawa, 600 Peter Morand Crescent, Ottawa, ON, K1G 5Z3, Canada
| | - Véronique Provencher
- École de Nutrition, Centre de Nutrition, Santé et Société (NUTRISS), Université Laval, 2425 Rue de L'Agriculture, Québec, QC, G1V 0A6, Canada
| | - Rachel Prowse
- Division of Community Health and Humanities, Faculty of Medicine, Memorial University of Newfoundland, 300 Prince Philip Drive, St. John's, NL, A1B 3V6, Canada
| | - Kim D Raine
- School of Public Health, University of Alberta, 11405 87 Ave Northwest, Edmonton, AB, T6G 1C9, Canada
| | - Ashley Schram
- School of Regulation and Global Governance (RegNet), ANU College of Asia & the Pacific, The Australian National University, 8 Fellows Road, Canberra, Australian Capital Territory, 2600, Australia
| | - Daniela Zavala-Mora
- Science Library, Université Laval, 1045 Avenue de La Médecine, Québec, QC, G1V 0A6, Canada
| | - Maryka Rancourt-Bouchard
- École de Nutrition, Centre de Nutrition, Santé et Société (NUTRISS), Université Laval, 2425 Rue de L'Agriculture, Québec, QC, G1V 0A6, Canada
| | - Lana Vanderlee
- École de Nutrition, Centre de Nutrition, Santé et Société (NUTRISS), Université Laval, 2425 Rue de L'Agriculture, Québec, QC, G1V 0A6, Canada.
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Wolfenden L, McCrabb S, Barnes C, O'Brien KM, Ng KW, Nathan NK, Sutherland R, Hodder RK, Tzelepis F, Nolan E, Williams CM, Yoong SL. Strategies for enhancing the implementation of school-based policies or practices targeting diet, physical activity, obesity, tobacco or alcohol use. Cochrane Database Syst Rev 2022; 8:CD011677. [PMID: 36036664 PMCID: PMC9422950 DOI: 10.1002/14651858.cd011677.pub3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Several school-based interventions are effective in improving child diet and physical activity, and preventing excessive weight gain, and tobacco or harmful alcohol use. However, schools are frequently unsuccessful in implementing such evidence-based interventions. OBJECTIVES 1. To evaluate the benefits and harms of strategies aiming to improve school implementation of interventions to address student diet, physical activity, tobacco or alcohol use, and obesity. 2. To evaluate the benefits and harms of strategies to improve intervention implementation on measures of student diet, physical activity, obesity, tobacco use or alcohol use; describe their cost or cost-effectiveness; and any harms of strategies on schools, school staff or students. SEARCH METHODS We used standard, extensive Cochrane search methods. The latest search was between 1 September 2016 and 30 April 2021 to identify any relevant trials published since the last published review. SELECTION CRITERIA We defined 'Implementation' as the use of strategies to adopt and integrate evidence-based health interventions and to change practice patterns within specific settings. We included any trial (randomised controlled trial (RCT) or non-randomised controlled trial (non-RCT)) conducted at any scale, with a parallel control group that compared a strategy to implement policies or practices to address diet, physical activity, overweight or obesity, tobacco or alcohol use by students to 'no intervention', 'usual' practice or a different implementation strategy. DATA COLLECTION AND ANALYSIS We used standard Cochrane methods. Given the large number of outcomes reported, we selected and included the effects of a single outcome measure for each trial for the primary (implementation) and secondary (student health behaviour and obesity) outcomes using a decision hierarchy. Where possible, we calculated standardised mean differences (SMDs) to account for variable outcome measures with 95% confidence intervals (CI). For RCTs, we conducted meta-analyses of primary and secondary outcomes using a random-effects model, or in instances where there were between two and five studies, a fixed-effect model. The synthesis of the effects for non-randomised studies followed the 'Synthesis without meta-analysis' (SWiM) guidelines. MAIN RESULTS We included an additional 11 trials in this update bringing the total number of included studies in the review to 38. Of these, 22 were conducted in the USA. Twenty-six studies used RCT designs. Seventeen trials tested strategies to implement healthy eating, 12 physical activity and six a combination of risk factors. Just one trial sought to increase the implementation of interventions to delay initiation or reduce the consumption of alcohol. All trials used multiple implementation strategies, the most common being educational materials, educational outreach and educational meetings. The overall certainty of evidence was low and ranged from very low to moderate for secondary review outcomes. Pooled analyses of RCTs found, relative to a control, the use of implementation strategies may result in a large increase in the implementation of interventions in schools (SMD 1.04, 95% CI 0.74 to 1.34; 22 RCTs, 1917 participants; low-certainty evidence). For secondary outcomes we found, relative to control, the use of implementation strategies to support intervention implementation may result in a slight improvement on measures of student diet (SMD 0.08, 95% CI 0.02 to 0.15; 11 RCTs, 16,649 participants; low-certainty evidence) and physical activity (SMD 0.09, 95% CI -0.02 to 0.19; 9 RCTs, 16,389 participants; low-certainty evidence). The effects on obesity probably suggest little to no difference (SMD -0.02, 95% CI -0.05 to 0.02; 8 RCTs, 18,618 participants; moderate-certainty evidence). The effects on tobacco use are very uncertain (SMD -0.03, 95% CIs -0.23 to 0.18; 3 RCTs, 3635 participants; very low-certainty evidence). One RCT assessed measures of student alcohol use and found strategies to support implementation may result in a slight increase in use (odds ratio 1.10, 95% CI 0.77 to 1.56; P = 0.60; 2105 participants). Few trials reported the economic evaluations of implementation strategies, the methods of which were heterogeneous and evidence graded as very uncertain. A lack of consistent terminology describing implementation strategies was an important limitation of the review. AUTHORS' CONCLUSIONS The use of implementation strategies may result in large increases in implementation of interventions, and slight improvements in measures of student diet, and physical activity. Further research is required to assess the impact of implementation strategies on such behavioural- and obesity-related outcomes, including on measures of alcohol use, where the findings of one trial suggest it may slightly increase student risk. Given the low certainty of the available evidence for most measures further research is required to guide efforts to facilitate the translation of evidence into practice in this setting.
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Affiliation(s)
- Luke Wolfenden
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- Hunter New England Population Health, Hunter New England Local Health District, Wallsend, NSW, Australia
| | - Sam McCrabb
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
| | - Courtney Barnes
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
| | - Kate M O'Brien
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
| | - Kwok W Ng
- Physical Activity for Health Research Cluster, Department of Physical Education and Sport Sciences, University of Limerick, Limerick, Ireland
- School of Educational Sciences and Psychology, University of Eastern Finland, Joensu, Finland
| | - Nicole K Nathan
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- Hunter New England Population Health, Hunter New England Local Health District, Wallsend, NSW, Australia
| | - Rachel Sutherland
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- Hunter New England Population Health, Hunter New England Local Health District, Wallsend, NSW, Australia
| | - Rebecca K Hodder
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- Hunter New England Population Health, Hunter New England Local Health District, Wallsend, NSW, Australia
| | - Flora Tzelepis
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Erin Nolan
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
| | - Christopher M Williams
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- Hunter New England Population Health, Hunter New England Local Health District, Wallsend, NSW, Australia
- Musculoskeletal Division, The George Institute for Global Health, Sydney, NSW, Australia
| | - Sze Lin Yoong
- School of Medicine and Public Health, University of Newcastle, Callaghan, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- Hunter New England Population Health, Hunter New England Local Health District, Wallsend, NSW, Australia
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