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Relationships Between Measures of the Physical Activity-Related Built Environment and Excess Weight in Preschoolers: A Retrospective, Population-Level Cohort Study. Child Obes 2024. [PMID: 38621159 DOI: 10.1089/chi.2024.0211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Background: The built environment can impact health outcomes. Our purpose was to examine relationships between built environment variables related to physical activity and excess weight in preschoolers. Methods: In this retrospective, population-level study of 4- to 6-year-olds, anthropometric measurements were taken between 2009 and 2017 in Calgary and Edmonton, Alberta, Canada. Based on BMI z-scores (BMIz), children were classified as normal weight (-2 ≤ BMIz <1) or excess weight (BMIz ≥1; overweight and obesity). Physical activity-related built environment variables were calculated (distances to nearest playground, major park, school; street intersection density; number of playgrounds and major parks within an 800 m buffer zone). Binomial logistic regression models estimated associations between physical activity-related built environment variables and excess weight. Results: Our analysis included 140,368 participants (females: n = 69,454; Calgary: n = 84,101). For Calgary, adjusted odds ratios (aORs) showed the odds of excess weight increased 1% for every 100-intersection increase [1.010 (1.006-1.015); p < 0.0001] and 13.6% when there were ≥4 playgrounds (vs. 0 or 1) within an 800 m buffer zone [1.136 (1.037-1.243); p = 0.0059]. For Edmonton, aORs revealed lower odds of excess weight for every 100 m increase in distances between residences to nearest major park [0.991 (0.986-0.996); p = 0.0005] and school [0.992 (0.990-0.995); p < 0.0001]. The odds of excess weight decreased as the number of major parks within the 800 m buffer zone increased from 0 to 1 [0.943 (0.896-0.992); p = 0.023] and from 0 to ≥3 [0.879 (0.773-0.999); p = 0.048]. Conclusion: The physical activity-related built environment was associated with excess weight in preschoolers, although relationships varied between cities that differed demographically and geographically.
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The metabolic load-capacity model and cardiometabolic health in children and youth with obesity. Pediatr Obes 2024; 19:e13098. [PMID: 38263541 DOI: 10.1111/ijpo.13098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/20/2023] [Accepted: 12/15/2023] [Indexed: 01/25/2024]
Abstract
BACKGROUND The metabolic load-capacity index (LCI), which represents the ratio of adipose to skeletal muscle tissue-containing compartments, is potentially associated with cardiometabolic diseases. OBJECTIVES To examine the associations between the LCI and cardiometabolic risk factors in children and youth with obesity. METHODS This is a cross-sectional study including 10-18 years-old participants with a BMI of ≥95th . LCI by air-displacement plethysmography (ADP) was calculated as fat mass divided by fat-free mass, and LCI by ultrasound (US) as subcutaneous adipose tissue divided by skeletal muscle thickness. Sex-specific medians stratified participants into high versus low LCI. Single (inflammation, insulin resistance, dyslipidemia and hypertension) and clustered cardiometabolic risk factors were evaluated. Linear and logistic regression models tested the associations between these variables, adjusted for sexual maturation. RESULTS Thirty-nine participants (43.6% males; 59% mid-late puberty) aged 12.5 (IQR: 11.1-13.5) years were included. LCI by ADP was positively associated with markers of inflammation and dyslipidemia; having a higher LCI predicted dyslipidemia in logistic regression. Similarly, LCI by US was positively associated with markers of dyslipidemia and blood pressure. In mid-late pubertal participants, LCI by US was positively associated with markers of insulin resistance and inflammation. CONCLUSIONS Participants with unfavourable cardiometabolic profile had higher LCI, suggesting its potential use for predicting and monitoring cardiometabolic health in clinical settings.
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Do Individual Characteristics and Social Support Increase Children's Use of an MHealth Intervention? Findings from the Evaluation of a Behavior Change MHealth App, Aim2Be. Child Obes 2023; 19:435-442. [PMID: 36576875 DOI: 10.1089/chi.2022.0055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Purpose: Mobile health (mHealth) apps may support improved health behavior practice among youth living in larger bodies. However, long-term use is low, limiting effectiveness. This study evaluated whether youths' motivation, satisfaction, engagement with social features, or parent co-participation supported long-term use of an app named Aim2Be. Methods: A secondary analysis of two versions of Aim2Be (preteen and teen versions) using covariate-adjusted multivariable regression was conducted. We evaluated associations between social support features (a virtual coach, a social poll, or a social wall), parent co-participation (time spent in the parent app), and app satisfaction on use (time spent in Aim2Be). Models were stratified by age and satisfaction was explored as a moderator. Results: Preteens (n = 83) engagement with the social poll (β = 0.26, p < 0.001), virtual health coach (β = 0.24, p = 0.01), app satisfaction (β = 0.31, p = 0.01), and parent co-participation (β = 0.24, p = 0.01) predicted use. In teens (n = 90), engagement with the virtual coach (β = 0.31, p < 0.001) and full utilization of social wall features (β = 0.41, p < 0.001) predicted use. Furthermore, satisfaction moderated the effects of partial utilization of the social wall among teens (β = 0.32 p = 0.02). Conclusion: Social support in mHealth apps may impact users differently depending on age. Features that include health professionals or peers may be more advantageous across ages. App developers should consider age when designing interventions. Clinical Trial Registration NCT03651284.
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Recruiting families using social media versus pediatric obesity clinics: A secondary analysis of the Aim2Be RCT. Contemp Clin Trials 2023; 133:107322. [PMID: 37661006 DOI: 10.1016/j.cct.2023.107322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/19/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
BACKGROUND Recruitment of participants continues to be a challenge that researchers must overcome to yield successful study results. Over the past decade, there has been a dramatic increase in the use of social media platforms to recruit research participants. We conducted a secondary analysis of the Aim2Be randomized controlled trial (RCT) to examine if there was variability between participants recruited via social media versus pediatric obesity clinics. METHODS Parents and their children living with overweight or obesity were recruited through social media (i.e., Facebook advertisements) (n = 119) or pediatric obesity management clinics (n = 95) to participate in the Aim2Be RCT. We compared recruitment costs, recruitment rate, participant retention, intervention engagement, obesity-related risk factors, and behavioral habits. RESULTS Facebook recruitment resulted in more participant contacts, but higher attrition during 'high effort' stages of the recruitment process. Group differences emerged regarding costs (Facebook: $407 versus clinics: $699). There were no group differences in participant retention or intervention engagement. Families recruited from Facebook were younger parents (42.6 versus 46.0 years; p < 0.001) and children (12.2 versus 13.9 years; p < 0.001), a higher percentage male children, and fewer had previously participated in a pediatric weight management program. Parents recruited from Facebook self-reported greater screen time for themselves, and their children reported lower physical activity levels and higher caloric and sugar intake. CONCLUSIONS Social media and clinical site recruitment are complementary strategies that appear to draw in families with different profiles, but regardless of how they were recruited, all families had the potential to benefit from pediatric obesity management.
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Saturated fat, the estimated absolute risk and certainty of risk for mortality and major cancer and cardiometabolic outcomes: an overview of systematic reviews. Syst Rev 2023; 12:179. [PMID: 37777760 PMCID: PMC10541715 DOI: 10.1186/s13643-023-02312-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 08/08/2023] [Indexed: 10/02/2023] Open
Abstract
OBJECTIVE To assess the impact of reducing saturated fat or fatty foods, or replacing saturated fat with unsaturated fat, carbohydrate or protein, on the risk of mortality and major cancer and cardiometabolic outcomes in adults. METHODS We searched MEDLINE, EMBASE, CINAHL, and references of included studies for systematic reviews and meta-analyses (SRMAs) of randomized controlled trials (RCTs) and observational studies in adults published in the past 10 years. Eligible reviews investigated reducing saturated fat or fatty foods or replacing saturated fat with unsaturated fat, carbohydrate or protein, on the risk of cancer and cardiometabolic outcomes and assessed the certainty of evidence for each outcome using, for example, the GRADE (Grading of Recommendations, Assessment, Development, and Evaluations) approach. We assessed the quality of SRMAs using a modified version of AMSTAR-2. Results were summarized as absolute estimates of effect together with the certainty of effects using a narrative synthesis approach. RESULTS We included 17 SRMAs (13 reviews of observational studies with follow-up 1 to 34 years; 4 reviews of RCTs with follow-up 1 to 17 years). The quality of two-thirds of the SRMAs was critically low to moderate; the main limitations included deficient reporting of study selection, absolute effect estimates, sources of funding, and a priori subgroups to explore heterogeneity. Our included reviews reported > 100 estimates of effect across 11 critically important cancer and cardiometabolic outcomes. High quality SRMAs consistently and predominantly reported low to very low certainty evidence that reducing or replacing saturated fat was associated with a very small risk reduction in cancer and cardiometabolic endpoints. The risk reductions where approximately divided, some being statistically significant and some being not statistically significant. However, based on 2 moderate to high quality reviews, we found moderate certainty evidence for a small but important effect that was statistically significant for two outcomes (total mortality events [20 fewer events per 1000 followed] and combined cardiovascular events [16 fewer per 1000 followed]). Conversely, 4 moderate to high quality reviews showed very small effects on total mortality, with 3 of these reviews showing non-statistically significant mortality effects. CONCLUSION Systematic reviews investigating the impact of SFA on mortality and major cancer and cardiometabolic outcomes almost universally suggest very small absolute changes in risk, and the data is based primarily on low and very low certainty evidence. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42020172141.
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Exploring the complexities of weight management care for children with spina bifida: a qualitative study with children and parents. Disabil Rehabil 2023:1-9. [PMID: 37665663 DOI: 10.1080/09638288.2023.2251878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 08/11/2023] [Accepted: 08/18/2023] [Indexed: 09/06/2023]
Abstract
PURPOSE 1) To explore how children with spina bifida (SB) and their parents understand bodyweight, health and weight management; and 2) To identify what services and supports children with SB and their families feel are most appropriate to help them manage their health and weight. METHODS The study used interpretive description within a qualitative design. Participants were children with SB (aged 10-18) attending two Canadian SB clinics and their parents. Data were collected through individual interviews and analyzed using inductive thematic analysis. RESULTS Five children and five parents participated in the study. Children and parents had a weight-centric approach to health, which was related to the child's mobility. Weight was considered to be under individual control and mostly through diet. Trusting relationships between healthcare providers, children and families were important to discuss weight in a non-judgemental manner. Children should be involved in setting meaningful and achievable weight management goals. CONCLUSION Greater knowledge of how children with SB and their families understand weight and health offers opportunities for non-judgemental discussions about their needs and wishes. Helping families to place more value on health over weight may reduce feelings of stigma, while allowing children to develop some autonomy over health-related decisions.
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Measuring severe obesity in pediatrics using body mass index-derived metrics from the Centers for Disease Control and Prevention and World Health Organization: a secondary analysis of CANadian Pediatric Weight management Registry (CANPWR) data. Eur J Pediatr 2023; 182:3679-3690. [PMID: 37264183 DOI: 10.1007/s00431-023-05039-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/03/2023]
Abstract
To examine the (i) relationships between various body mass index (BMI)-derived metrics for measuring severe obesity (SO) over time based the Centers for Disease Control and Prevention (CDC) and World Health Organization (WHO) references and (ii) ability of these metrics to discriminate children and adolescents based on the presence of cardiometabolic risk factors. In this cohort study completed from 2013 to 2021, we examined data from 3- to 18-year-olds enrolled in the CANadian Pediatric Weight management Registry. Anthropometric data were used to create nine BMI-derived metrics based on the CDC and WHO references. Cardiometabolic risk factors were examined, including dysglycemia, dyslipidemia, and elevated blood pressure. Analyses included Pearson correlations, intraclass correlation coefficients (ICC), and receiver operator characteristic area-under-the-curve (ROC AUC). Our sample included 1,288 participants (n = 666 [52%] girls; n = 874 [68%] white). The prevalence of SO varied from 60-67%, depending on the definition. Most BMI-derived metrics were positively and significantly related to one another (r = 0.45-1.00); ICCs revealed high tracking (0.90-0.94). ROC AUC analyses showed CDC and WHO metrics had a modest ability to discriminate the presence of cardiometabolic risk factors, which improved slightly with increasing numbers of risk factors. Overall, most BMI-derived metrics rated poorly in identifying presence of cardiometabolic risk factors. Conclusion: CDC BMI percent of the 95th percentile and WHO BMIz performed similarly as measures of SO, although neither showed particularly impressive discrimination. They appear to be interchangeable in clinical care and research in pediatrics, but there is a need for a universal standard. WHO BMIz may be useful for clinicians and researchers from countries that recommend using the WHO growth reference. What is Known: • Severe obesity in pediatrics is a global health issue. • Few reports have evaluated body mass index (BMI)-derived metrics based on the World Health Organization growth reference. What is New: • Our analyses showed that the Centers for Disease Control and Prevention BMI percent of the 95th percentile and World Health Organization (WHO) BMI z-score (BMIz) performed similarly as measures of severe obesity in pediatrics. • WHO BMIz should be a useful metric to measure severe obesity for clinicians and researchers from countries that recommend using the WHO growth reference.
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Weight Management for Children With Disabilities: Exploring the Perspectives of Health Care Professionals Working in Pediatric Weight Management Clinics in Canada. Child Obes 2023. [PMID: 37347912 DOI: 10.1089/chi.2023.0049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/24/2023]
Abstract
Background: Children with disabilities are twice as likely to have overweight/obesity than their typically developing peers. Higher weights in these individuals may compound challenges already experienced with their disability, including mobility and activities of daily living. However, children with disabilities often find it challenging accessing weight management care. It is therefore important to understand the experiences and needs of the health care professionals (HCPs) who work in specialized pediatric weight management clinics about providing weight-related care to children with disabilities. Methods: Employing an interpretive description approach, purposeful sampling was used to recruit 17 HCP participants working in pediatric weight management settings in Canada. Qualitative semistructured interviews were conducted online or via telephone. All interview recordings were transcribed and a reflexive thematic analysis approach was used to develop themes from the data. Results: Four themes were developed: (1) infrequent referrals leads to a lack of experience with children with disabilities; (2) adapting group-based clinics can be challenging; (3) perceived lack of disability-specific knowledge causes moral distress; and (4) disability-specific training and greater interdisciplinary collaboration are desired. Conclusions: This work identifies the urgent need for more evidence-based, specialized, weight-related treatment options for children with disabilities, as well as more support for HCPs working in existing programs.
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Priority topics for child and family health research in community-based paediatric health care according to caregivers and health care professionals. Paediatr Child Health 2023; 28:158-165. [PMID: 37205136 PMCID: PMC10186094 DOI: 10.1093/pch/pxac106] [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] [Received: 02/12/2022] [Accepted: 08/25/2022] [Indexed: 01/07/2024] Open
Abstract
Background Patient-oriented research (POR) aligns research with stakeholders' priorities to improve health services and outcomes. Community-based health care settings offer an opportunity to engage stakeholders to determine the most important research topics to them. Our objectives were to identify unanswered questions that stakeholders had regarding any aspect of child and family health and prioritize their 'top 10' questions. Methods We followed the James Lind Alliance (JLA) priority setting methodology in partnership with stakeholders from the Northeast Community Health Centre (NECHC; Edmonton, Canada). We partnered with stakeholders (five caregivers, five health care professionals [HCPs]) to create a steering committee. Stakeholders were surveyed in two rounds (n = 125 per survey) to gather and rank-order unanswered questions regarding child and family health. A final priority setting workshop was held to finalize the 'top 10' list. Results Our initial survey generated 1,265 submissions from 100 caregivers and 25 HCPs. Out of scope submissions were removed and similar questions were combined to create a master list of questions (n = 389). Only unanswered questions advanced (n = 108) and were rank-ordered through a second survey by 100 caregivers and 25 HCPs. Stakeholders (n = 12) gathered for the final workshop to discuss and finalize the 'top 10' list. Priority questions included a range of topics, including mental health, screen time, COVID-19, and behaviour. Conclusion Our stakeholders prioritized diverse questions within our 'top 10' list; questions regarding mental health were the most common. Future patient-oriented research at this site will be guided by priorities that were most important to caregivers and HCPs.
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Associations between social determinants of health and weight status in preschool children: a population-based study. Health Promot Chronic Dis Prev Can 2023; 43:281-289. [PMID: 37379357 PMCID: PMC10364580 DOI: 10.24095/hpcdp.43.6.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
INTRODUCTION Social determinants of health (SDH) may influence children's weight status. Our objective was to examine relationships between SDH and preschoolers' weight status. METHODS This retrospective cohort study included 169 465 children (aged 4-6 years) with anthropometric measurements taken at immunization visits from 2009 to 2017 in Edmonton and Calgary, Canada. Children were categorized by weight status based on WHO criteria. Maternal data were linked to child data. The Pampalon Material and Social Deprivation Indexes were used to assess deprivation. We used multinomial logistic regression to generate relative risk ratios (RRRs) to examine associations between ethnicity, maternal immigrant status, neighbourhood-level household income, urban/ rural residence and material and social deprivation with child weight status. RESULTS Children of Chinese ethnicity were less likely than those in the General Population to have overweight (RRR = 0.64, 95% CI: 0.61-0.69) and obesity (RRR = 0.51, 0.42-0.62). Children of South Asian ethnicity were more likely than those in the General Population to have underweight (RRR = 4.14, 3.54-4.84) and more likely to have obesity (RRR = 1.39, 1.22-1.60). Children with maternal immigrant status were less likely than those without maternal immigrant status to have underweight (RRR = 0.72, 0.63-0.82) and obesity (RRR = 0.71, 0.66-0.77). Children were less likely to have overweight (RRR = 0.95, 0.94-0.95) and obesity (RRR = 0.88, 0.86-0.90) for every CAD 10 000 increase in income. Relative to the least deprived quintile, children in the most materially deprived quintile were more likely to have underweight (RRR = 1.36, 1.13-1.62), overweight (RRR = 1.52, 1.46-1.58) and obesity (RRR = 2.83, 2.54-3.15). Relative to the least deprived quintile, children in the most socially deprived quintile were more likely to have overweight (RRR = 1.21, 1.17-1.26) and obesity (RRR = 1.40, 1.26-1.56). All results are significant to p < 0.001. CONCLUSION Our findings suggest the need for interventions and policies to address SDH in preschoolers to optimize their weight and health.
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Severe obesity and global developmental delay in preschool children: Findings from a Canadian Paediatric Surveillance Program study. Paediatr Child Health 2023; 28:107-112. [PMID: 37151929 PMCID: PMC10156927 DOI: 10.1093/pch/pxac109] [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] [Received: 05/13/2022] [Accepted: 10/12/2022] [Indexed: 11/15/2022] Open
Abstract
Background The co-presentation of severe obesity (SO) and global developmental delay (GDD) in Canadian preschool children has not been examined. However, SO and GDD may require syndromic diagnoses and unique management considerations. Objectives To determine (1) minimum incidence; (2) age of onset and risk factors; and (3) health care utilization for co-presenting SO and GDD. Methods Through the Canadian Paediatric Surveillance Program (CPSP), a monthly form was distributed to participants from February 2018 to January 2020 asking for reports of new cases of SO and GDD among children ≤5 years of age. We performed descriptive statistics for quantitative questions and qualitative content analysis for open-ended questions. Results Forty-seven cases (64% male; 51% white; mean age: 3.5 ± 1.2 years) were included. Age of first weight concern was 2.5 ± 1.3 years and age of GDD diagnosis was 2.7 ± 1.4 years. Minimum incidence of SO and GDD was 3.3 cases per 100,000 for ≤5 years of age per year. Identified problems included school and/or behavioural problems (n = 17; 36%), snoring (n = 14; 30%), and asthma/recurrent wheeze (n = 10; 21%). Mothers of 32% of cases (n = 15) had obesity and 21% of cases (n = 10) received neonatal intensive care. Microarray was ordered for 57% (n = 27) of children. A variety of clinicians and services were accessed. As reported by CPSP participants, challenges faced by families and health service access were barriers to care. Conclusion Children with SO and GDD have multiple comorbidities, and require early identification and referral to appropriate services. These cases may also benefit from additional testing to rule out known genetic obesity syndromes.
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The Impacts of COVID-19 Restrictions on Physical Activity in Children and Youth: A Systematic Review of Qualitative Evidence. J Phys Act Health 2023; 20:423-437. [PMID: 36965492 DOI: 10.1123/jpah.2022-0350] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 12/16/2022] [Accepted: 01/11/2023] [Indexed: 03/27/2023]
Abstract
BACKGROUND The objectives of this systematic review were to synthesize qualitative evidence on the impacts of COVID-19 restrictions on physical activity (PA) for children and youth, and explore factors perceived to influence those impacts. METHODS Five databases (MEDLINE, Embase, SPORTDiscus, ERIC, and CINAHL) were searched initially in June 2021 and updated in December 2021 to locate qualitative articles considering COVID-19 restrictions and PA for children and youth (≤18 y old), in any setting. Eligibility, quality assessments, and data extraction were completed by 2 independent reviewers. Data were synthesized using meta-aggregation with confidence of findings rated using ConQual. RESULTS After screening 3505 records, 15 studies were included. Curriculum-based PA, organized sport, and active transportation were negatively impacted by COVID-19 restrictions. Negative changes were affected by COVID-19 exposure risks, inadequate instruction, poor access, screen time, and poor weather. Unstructured PA was inconsistently impacted; outdoor unstructured PA increased for some. Positive changes were facilitated by family co-participation, availability of outdoor space, and perceived mental health benefits. CONCLUSION Qualitative data indicated restrictions had a predominantly negative impact on PA for children and youth, but inconsistent impacts on unstructured PA. The improved contextual understanding offered by our review will be foundational knowledge for health strategies moving forward.
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Parents as Agents of Change in Managing Pediatric Obesity: A Randomized Controlled Trial Comparing Cognitive Behavioral Therapy versus Psychoeducation Interventions. Child Obes 2023; 19:71-87. [PMID: 35442813 DOI: 10.1089/chi.2021.0194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background: Obesity interventions for parents of children with obesity can improve children's weight and health. This randomized controlled trial (RCT) evaluated whether a parent-based intervention based on cognitive behavioral therapy (CBT) principles was superior to a parent-based intervention based on a psychoeducation program (PEP) in improving children's obesity. Methods: This study was a pragmatic, two-armed, parallel, superiority RCT. Conducted at a Canadian outpatient pediatric obesity management clinic (September 2010-January 2014), this trial included families with children 8-12 years with an age- and sex-specific BMI ≥85th percentile. The 16-week manualized interventions were similar in content and delivered to parents exclusively, with different theoretical underpinnings. The primary outcome was children's BMI z-score at postintervention (4 months). Secondary outcomes included anthropometric, lifestyle, psychosocial, and cardiometabolic variables. Data were collected at preintervention (0 months), postintervention (4 months), 10, and 16 months. Intention-to-treat analysis using linear mixed models was used to assess outcomes. Results: Among 52 randomly assigned children, the mean age (standard deviation) was 9.8 (1.7) years and BMI z-score was 2.2 (0.3). Mean differences in BMI z-score were not significantly different between the CBT (n = 27) and PEP (n = 25) groups from 0 to 4-, 10-, and 16-month follow-up. At 4 months, the mean difference in BMI z-score from preintervention between the CBT (-0.05, 95% CI = -0.09 to 0.00) and PEP (-0.04, 95% CI = -0.09 to 0.01) groups was -0.01 (95% CI = -0.08 to 0.06, p = 0.80). Similar results were found across all secondary outcomes. Conclusions: Our CBT-based intervention for parents of children with obesity was not superior in reducing BMI z-score vs. our PEP-based intervention.
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Incorporation of patient and family values and preferences for health-related outcomes in paediatric obesity management: A systematic review. Pediatr Obes 2023; 18:e13006. [PMID: 36810978 DOI: 10.1111/ijpo.13006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 12/20/2022] [Accepted: 01/04/2023] [Indexed: 02/24/2023]
Abstract
OBJECTIVE A systematic review of value and preference studies conducted in children and their caregivers related to the estimated benefits and harms of interventions for managing paediatric obesity. METHODS We searched Ovid Medline (1946-2022), Ovid Embase (1974-2022), EBSCO CINAHL (inception to 2022), Elsevier Scopus (inception to 2022), and ProQuest Dissertations & Theses (inception to 2022). Reports were eligible if they included: behavioural and psychological, pharmacological, or surgical interventions; participants between (or had a mean age within) 0-18 years old with overweight or obesity; systematic reviews, primary quantitative, qualitative, or mixed/multiple methods studies; and values and preferences as main study outcomes. At least two team members independently screened studies, abstracted data, and appraised study quality. RESULTS Our search yielded 11 010 reports; eight met the inclusion criteria. One study directly assessed values and preferences based on hypothetical pharmacological treatment for hyperphagia in individuals with Prader-Willi Syndrome. Although not having reported on values and preferences using our a priori definitions, the remaining seven qualitative studies (n = 6 surgical; n = 1 pharmacological) explored general beliefs, attitudes, and perceptions about surgical and pharmacological interventions. No studies pertained to behavioural and psychological interventions. CONCLUSION Future research is needed to elicit the values and preferences of children and caregivers using the best available estimates of the benefits and harms for pharmacological, surgical, and behavioural and psychological interventions.
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A multi-center, randomized, 12-month, parallel-group, feasibility study to assess the acceptability and preliminary impact of family navigation plus usual care versus usual care on attrition in managing pediatric obesity: a study protocol. Pilot Feasibility Stud 2023; 9:14. [PMID: 36691103 PMCID: PMC9868519 DOI: 10.1186/s40814-023-01246-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 01/16/2023] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Pediatric obesity management can be successful, but some families discontinue care prematurely (i.e., attrition), limiting treatment impact. Attrition is often a consequence of barriers and constraints that limit families' access to obesity management. Family Navigation (FN) can improve access, satisfaction with care, and treatment outcomes in diverse areas of healthcare. To help our team prepare for a future effectiveness trial, the objectives of our randomized feasibility study are to (i) explore children's and caregivers' acceptability of FN and (ii) examine attrition, measures of study rigor and conduct, and responses to FN + Usual Care vs Usual Care by collecting clinical, health services, and health economic data. METHODS In our 2.5-year study, 108 6-17-year-olds with obesity and their caregivers will be randomized (1:1) to FN + Usual Care or Usual Care after they enroll in obesity management clinics in Calgary and Mississauga, Canada. Our Stakeholder Steering Committee and research team will use Experience-Based Co-Design to design and refine our FN intervention to reduce families' barriers to care, maximizing the intervention dose families receive. FN will be delivered by a navigator at each site who will use logistical and relational strategies to enhance access to care, supplementing obesity management. Usual Care will be offered similarly at both clinics, adhering to expert guidelines. At enrollment, families will complete a multidisciplinary assessment, then meet regularly with a multidisciplinary team of clinicians for obesity management. Over 12 months, both FN and Usual Care will be delivered virtually and/or in-person, pandemic permitting. Data will be collected at 0, 3, 6, and 12 months post-baseline. We will explore child and caregiver perceptions of FN acceptability as well as evaluate attrition, recruitment, enrolment, randomization, and protocol integrity against pre-set success thresholds. Data on clinical, health services, and health economic outcomes will be collected using established protocols. Qualitative data analysis will apply thematic analysis; quantitative data analysis will be descriptive. DISCUSSION Our trial will assess the feasibility of FN to address attrition in managing pediatric obesity. Study data will inform a future effectiveness trial, which will be designed to test whether FN reduces attrition. TRIAL REGISTRATION This trial was registered prospectively at ClinicalTrials.gov (# NCT05403658 ; first posted: June 3, 2022).
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A survey of stakeholders' perceived importance of health indicators and subgroup analyses to inform the Canadian clinical practice guideline for managing paediatric obesity. Pediatr Obes 2022; 17:e12949. [PMID: 35666072 DOI: 10.1111/ijpo.12949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/16/2022] [Accepted: 05/16/2022] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To assess stakeholder ratings of health indicators and subgroup analyses in systematic reviews used to update the Canadian Clinical Practice Guideline for Managing Paediatric Obesity. METHODS Stakeholders (caregivers of children with obesity and Clinical Practice Guideline Steering Committee members) completed an online survey between April 2020 and March 2021. Participants rated importance of health indicators and subgroup analyses for behavioural and psychological, pharmacotherapeutic, and surgical interventions for managing paediatric obesity from not important to critically important using Grading, Recommendations, Assessment, Development and Evaluation criteria. RESULTS No health indicators or subgroup analyses were rated not important by the 30 caregivers and 17 Steering Committee members. Across intervention types, stakeholders rated anxiety, depression, health-related quality of life, serious adverse events, plus age and weight status subgroups as critically important. CONCLUSION Stakeholder ratings will inform data reporting and interpretation to update Canada's Clinical Practice Guideline for Managing Paediatric Obesity.
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The application and reporting of motivational interviewing in managing adolescent obesity: A scoping review and stakeholder consultation. Obes Rev 2022; 23:e13505. [PMID: 36183740 DOI: 10.1111/obr.13505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/25/2022] [Accepted: 09/11/2022] [Indexed: 11/27/2022]
Abstract
Motivational interviewing (MI) is an evidence-based counseling approach that can help individuals make positive behavioral and cognitive changes for managing obesity. We conducted a scoping review to summarize evidence on fidelity and key elements of MI-based interventions for managing adolescent obesity and examine the reporting of these interventions. Ten electronic databases and gray literature were searched systematically and included literature from January 1983 to February 2022, and 26 studies were included. Data on MI features, delivery context, training, and fidelity to treatment were summarized. Fidelity was assessed using an assessment grid with five domains-theory, training, implementation, treatment receipt, and treatment enactment. The last step of the review involved stakeholder consultation with clinician-scientists and researchers with experience in MI and managing adolescent obesity. Thirteen stakeholders were interviewed about our review findings on MI and treatment fidelity. Our analyses revealed that MI-based interventions for managing adolescent obesity had "low treatment fidelity"; no studies had "high treatment fidelity" across all five domains. Fidelity strategies adhered to the most was theory, and treatment enactment was the lowest. Stakeholders mentioned that "low treatment fidelity" may be due to increased time to complete fidelity assessments and increased cost associated with treatment fidelity. These findings have implications for planning, implementing, and evaluating MI-based interventions for managing adolescent obesity.
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Behavioural change as a theme that integrates behavioural sciences in dental education. EUROPEAN JOURNAL OF DENTAL EDUCATION : OFFICIAL JOURNAL OF THE ASSOCIATION FOR DENTAL EDUCATION IN EUROPE 2022; 26:453-458. [PMID: 34553458 DOI: 10.1111/eje.12720] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 03/13/2021] [Accepted: 07/03/2021] [Indexed: 06/13/2023]
Abstract
The behavioural sciences curriculum in dental education is often fragmented and its clinical relevance is not always apparent to learners. Curriculum integration is vital to understand behavioural subjects that are interrelated but frequently delivered as separate issues in dental programmes. In this commentary, we discuss behavioural change as a curricular theme that can integrate behavioural sciences in dental programmes. Specifically, we discuss behavioural change in the context of dental education guidelines and describe four general phases of behavioural change (defining the target behaviour, identifying the behavioural determinants, applying appropriate behavioural change techniques and evaluating the behavioural intervention) to make the case for content that can be covered within this curricular theme, including its sequencing. This commentary is part of ongoing efforts to improve the behavioural sciences curriculum in dental education in order to ensure that dental students develop the behavioural competencies required for entry-level general dentists.
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Re-referring Children for Multidisciplinary Obesity Management. J Pediatr 2022; 244:101-106.e2. [PMID: 35074309 DOI: 10.1016/j.jpeds.2022.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To examine characteristics of children referred for obesity management based on referral frequency, child- and referrer-related variables associated with re-referral, and determine whether re-referral increased treatment initiation. STUDY DESIGN This population-level, retrospective analysis included all 2- to 17-year-olds referred for obesity management to 1 of 3 multidisciplinary clinics in Alberta, Canada between April 2013 and December 2017. Children were dichotomized based on referral frequency, specifically once only or more than once (re-referred). Data were retrieved from standardized referral forms and patient registries. Analyses included logistic regression and generalized estimating equations models. RESULT We analyzed data from 2745 children (47.2% female; mean age: 11.4 years; mean body mass index z score: 3.03) and 2705 physicians (60.2% female; 65.6% pediatricians). Overall, 300 (10.2%) children were re-referred with most (n = 276; 92.0%) being referred twice. Children were less likely to be re-referred if they were referred by a family physician (vs pediatrician) (aOR 0.62; 95% CI 0.46-0.84; P = .0018) or scheduled a clinic appointment following their index referral (aOR: 0.29; 95% CI 0.21-0.4; P < .001). Treatment initiation was higher in children who were referred once only (42.1%) vs their re-referred peers (18.0%; P < .0001); however, for children who were re-referred, they were more likely to initiate treatment following their second referral (aOR 2.3; 95% CI 1.22-4.31; P = .01). This improvement was not sustained on subsequent referrals (aOR 0.44; 95% CI 0.17-1.12; P = .08). CONCLUSIONS Few children were re-referred for pediatric obesity management; however, for those children who were re-referred, being re-referred once only increased the likelihood of treatment initiation.
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Efficacy of the Aim2Be intervention in changing lifestyle behaviours among adolescents with overweight and obesity: A Randomized Controlled Trial (Preprint). J Med Internet Res 2022; 25:e38545. [PMID: 37097726 PMCID: PMC10170359 DOI: 10.2196/38545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 09/13/2022] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
BACKGROUND Aim2Be is a gamified lifestyle app designed to promote lifestyle behavior changes among Canadian adolescents and their families. OBJECTIVE The primary aim was to test the efficacy of the Aim2Be app with support from a live coach to reduce weight outcomes (BMI Z score [zBMI]) and improve lifestyle behaviors among adolescents with overweight and obesity and their parents versus a waitlist control group over 3 months. The secondary aim was to compare health trajectories among waitlist control participants over 6 months (before and after receiving access to the app), assess whether support from a live coach enhanced intervention impact, and evaluate whether the app use influenced changes among intervention participants. METHODS A 2-arm parallel randomized controlled trial was conducted from November 2018 to June 2020. Adolescents aged 10 to 17 years with overweight or obesity and their parents were randomized into an intervention group (Aim2Be with a live coach for 6 months) or a waitlist control group (Aim2Be with no live coach; accessed after 3 months). Adolescents' assessments at baseline and at 3 and 6 months included measured height and weight, 24-hour dietary recalls, and daily step counts measured with a Fitbit. Data on self-reported physical activity, screen time, fruit and vegetable intake, and sugary beverage intake of adolescents and parents were also collected. RESULTS A total of 214 parent-child participants were randomized. In our primary analyses, there were no significant differences in zBMI or any of the health behaviors between the intervention and control groups at 3 months. In our secondary analyses, among waitlist control participants, zBMI (P=.02), discretionary calories (P=.03), and physical activity outside of school (P=.001) declined, whereas daily screen time increased (P<.001) after receiving access to the app compared with before receiving app access. Adolescents randomized to Aim2Be with live coaching reported more time being active outside of school compared with adolescents who used Aim2Be with no coaching over 3 months (P=.001). App use did not modify any changes in outcomes among adolescents in the intervention group. CONCLUSIONS The Aim2Be intervention did not improve zBMI and lifestyle behaviors in adolescents with overweight and obesity compared with the waitlist control group over 3 months. Future studies should explore the potential mediators of changes in zBMI and lifestyle behaviors as well as predictors of engagement. TRIAL REGISTRATION ClinicalTrials.gov NCT03651284; https://clinicaltrials.gov/ct2/show/study/NCT03651284. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) RR2-10.1186/s13063-020-4080-2.
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Metabolically healthy obesity in children enrolled in the CANadian Pediatric Weight management Registry (CANPWR): An exploratory secondary analysis of baseline data. Clin Obes 2022; 12:e12490. [PMID: 34617401 DOI: 10.1111/cob.12490] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 09/06/2021] [Accepted: 09/15/2021] [Indexed: 12/11/2022]
Abstract
Our study purpose was to determine the prevalence of metabolically healthy obesity (MHO) and examine factors associated with MHO in children with obesity. This cross-sectional study was a secondary, exploratory analysis of data that included 2-17 years old with a body mass index (BMI) ≥85th percentile from the CANadian Pediatric Weight management Registry. Children were classified as having MHO or metabolically unhealthy obesity (MUO) using consensus-based criteria. Those with MHO had normal triglycerides, high-density lipoprotein cholesterol, blood pressure, and fasting glucose. Logistic regression was used to examine factors associated with MHO, which included calculating odds ratios (ORs) and 95% confidence intervals (CIs). In total, 945 children were included (mean age: 12.3 years; 51% female). The prevalence of MHO was 31% (n = 297), with lower levels across increasing age categories (2-5 years [n = 18; 43%], 6-11 years [n = 127; 35%], 12-17 years [n = 152; 28%]). Children with MHO were younger, weighed less, and had lower BMI z-scores than their peers with MUO (all p < 0.01). MHO status was positively associated with physical activity (OR: 1.18; 95% CI: 1.01-1.38), skim milk intake (OR: 1.10; 95% CI: 1.01-1.19), and fruit intake (OR: 1.12; 95% CI: 1.01-1.24) and negatively associated with BMI z-score (OR: 0.69; 95% CI: 0.60-0.79), total screen time in hours (OR: 0.79; 96% CI: 0.68-0.92), and intake of fruit flavoured drinks (OR: 0.91; 95% CI: 0.84-0.99). These findings may help guide clinical decision-making regarding obesity management by focusing on children with MUO who are at relatively high cardiometabolic risk.
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Abstract
BACKGROUND Since the first national guideline for managing obesity in adults and children in Canada was published in 2007, new evidence has emerged and guideline standards have evolved. Our purpose is to describe the protocol used to update the Canadian clinical practice guideline for managing pediatric obesity. METHODS This guideline will update the pediatric components of the 2007 Canadian clinical practice guideline for the management of obesity. In partnership with Obesity Canada, we began preliminary work in 2019; activities are scheduled for completion in 2022. The guideline will follow standards developed by the National Academy of Medicine and the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) working group. Guideline development will be informed by 5 complementary literature reviews: a scoping review that focuses on clinical assessment in pediatric obesity management and 4 systematic reviews to synthesize evidence regarding families' values and preferences as well as the safety and effectiveness of interventions (psychological and behavioural; pharmacotherapeutic; and surgical). We will use standard systematic review methodology, including summarizing and assessing the certainty of evidence and determining the strength of recommendations. Competing interests will be managed proactively according to recommendations from the Guidelines International Network. Diverse stakeholders, including families and clinicians, will be engaged throughout guideline development. INTERPRETATION The guideline will support Canadian families and clinicians to make informed, value-sensitive and evidence-based clinical decisions related to managing pediatric obesity. The guideline and accompanying resources for end-users will be published in English and French, and we will partner with Obesity Canada to optimize dissemination using integrated and end-of-project knowledge translation.
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Abstract
Background: A physician or health care provider (HCP) referral is usually needed for children to access multidisciplinary health services for obesity management; however, offering families the option to self-refer can enhance equity and access to care. Methods: We completed a retrospective medical record review to explore patient characteristics and program engagement of children with obesity who were self- (n = 18) or HCP-referred (n = 120) for obesity management. Results: Our descriptive data suggested that children who were self-referred presented with a healthier clinical profile and missed fewer appointments than their peers referred by HCPs. Conclusions: Prospective research is needed to examine whether health services and treatment outcomes differ between self- and HCP-referred children in obesity management.
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Recommendations from parents, administrative staff and clinicians to improve paediatric ambulatory appointment scheduling. Child Care Health Dev 2021; 47:834-843. [PMID: 34169559 DOI: 10.1111/cch.12891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 01/28/2021] [Accepted: 06/17/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Stakeholders can provide valuable input to improve scheduling paediatric ambulatory clinic appointments, a complex process that requires effective planning and communication between parents, administrative staff and clinicians. The purpose of our study was to characterize recommendations from parents, administrative staff and clinicians to improve paediatric ambulatory appointment scheduling. METHODS Conducted between February 2018 and January 2019, this qualitative study was guided by qualitative description. Data collection was completed using focus groups with three stakeholder groups: parents, administrative staff and clinicians. Participants provided recommendations to optimize paediatric ambulatory appointment scheduling at the Stollery Children's Hospital in Edmonton, Alberta, Canada. Focus group data were transcribed verbatim and analysed using manifest inductive content analysis. RESULTS Forty-six participants (mean age: 42.7; 87% female) participated in 12 focus groups. Parents (n = 11), administrative staff (n = 22) and clinicians (n = 13) made recommendations that were organized into two categories: appointment triaging and arranging. Triaging recommendations were related to appointment availability (e.g. providing alternatives to cancelling clinics with short notice) and waitlist management (e.g. developing clear and consistent policies regarding information flow and communication between clinics and administrative staff). Appointment arranging recommendations referred to booking (e.g. directly involving parents in the booking process), reminders (e.g. using text message reminders) and attendance (e.g. providing parents with a single point of contact who can provide the correct information about late and cancellation policies). Recommendations were similar across stakeholder groups. CONCLUSION Our findings showed congruent recommendations across stakeholder groups to address challenges with scheduling ambulatory appointments, many of which have the potential to be modified. Experimental research and quality improvement initiatives are needed to determine the feasibility, acceptability and effectiveness of stakeholder recommendations to improve triaging and scheduling paediatric ambulatory appointments.
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Physician-related predictors of referral for multidisciplinary paediatric obesity management: a population-based study. Fam Pract 2021; 38:576-581. [PMID: 33755099 DOI: 10.1093/fampra/cmab019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND It is recommended that primary care-based physicians refer children with overweight and obesity to multidisciplinary paediatric obesity management, which can help to improve weight and health. OBJECTIVE To determine predictors of referral to multidisciplinary paediatric obesity management. METHODS This retrospective, population-level study included physicians who could refer 2-17 years old with a body mass index ≥85th percentile to one of three multidisciplinary paediatric obesity management clinics in Alberta, Canada. Physician demographic and procedural data were obtained from Practitioner Claims and Provider Registry maintained by Alberta Health from January 2014 to December 2017. Physician characteristics were compared based on whether they did or did not refer children for obesity management. Univariable and multivariable logistic regression models analysed associations between physician characteristics and referral making. RESULTS Of the 3863 physicians (3468 family physicians, 395 paediatricians; 56% male; 49.3 ± 12.2 years old; 22.3 ± 12.6 years since graduation) practicing during the study period, 1358 (35.2%) referred at least one child for multidisciplinary paediatric obesity management. Multivariable regression revealed that female physicians (versus males) [odds ratio (OR): 1.68, 95% confidence interval (CI): 1.46-1.93; P < 0.0001], paediatricians (versus family physicians) (OR: 4.89, 95% CI: 3.85-6.21; P < 0.0001) and urban-based physicians (versus non-urban-based physicians) (OR: 2.17, 95% CI: 1.79-2.65; P < 0.0001) were more likely to refer children for multidisciplinary paediatric obesity management. CONCLUSIONS Approximately one-third of family physicians and paediatricians referred children for multidisciplinary paediatric obesity management. Strategies are needed to improve referral practices for managing paediatric obesity, especially among male physicians, family physicians and non-urban-based physicians as they were less likely to refer children.
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Variability in How Canadian Pediatric Weight Management Clinics Deliver Care: Evidence from the CANadian Pediatric Weight Management Registry. Child Obes 2021; 17:420-426. [PMID: 33978453 DOI: 10.1089/chi.2021.0011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background: Clinical practice guidelines for pediatric weight management highlight the importance of family-based behavioral strategies to enhance health behaviors. Little is known, however, of how clinics implement these programs. The study objectives were to (1) describe how Canadian pediatric weight management clinics deliver care and (2) evaluate change in services over time. Methods: The CANadian Pediatric Weight management Registry (CANPWR) is a multisite prospective cohort study of participants enrolled in a Canadian pediatric weight management clinic. Clinical program characteristics (e.g., referral process, inclusion criteria, funding, program characteristics, patient interaction methods, and follow-up) were collected at the start and end of the CANPWR recruitment period (2015-2019). Results: Entrance into the nine clinics varied with limiting criteria based on geographic proximity, age, weight status, and presence of health conditions. The clinics varied in size (50-220 new patients/year). The planned length of intervention varied widely, from 10 weeks to open-ended (median 2 years). Behavior modification strategies were delivered with a mix of individual and group-based sessions and most were delivered in person, complemented by use of virtual care. Over time, more clinics saw patients under the age of 5 years and all clinics defined a program length. Conclusion: Although all clinics offered family-based behavioral weight management services, these varied considerably, especially in program entrance criteria, size of clinic, and the length of intervention. The influence of the variability in delivery of services on health outcomes will be addressed in future studies.
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ApoB-lipoprotein remnant dyslipidemia and high-fat meal intolerance is associated with markers of cardiometabolic risk in youth with obesity. Pediatr Obes 2021; 16:e12745. [PMID: 33150705 DOI: 10.1111/ijpo.12745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 09/30/2020] [Accepted: 10/05/2020] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Cardiovascular disease (CVD) originates in childhood and risk is exacerbated in obesity. Mechanisms of the etiologic link between early adiposity and CVD-risk remain unclear. Postprandial or non-fasting dyslipidemia is characterized by elevated plasma triglycerides (TG) and intestinal-apolipoprotein(apo)B48-remnants following a high-fat meal and is a known CVD-risk factor in adults. The aim of this study was to determine (a) whether the fasting concentration of apoB48-remnants can predict impaired non-fasting apoB48-lipoprotein metabolism (fat intolerance) and (b) the relationship of these biomarkers with cardiometabolic risk factors in youth with or without obesity. METHODS We assessed fasting and non-fasting lipids in youth without obesity (n = 22, 10 males, 12 females) and youth with obesity (n = 13, 5 males, 8 females) with a mean BMI Z-score of 0.19 ± 0.70 and 2.25 ± 0.31 (P = .04), respectively. RESULTS Fasting and non-fasting apoB48-remnants were elevated in youth with obesity compared to youth without obesity (apoB48: 18.04 ± 1.96 vs 8.09 ± 0.59, P < .0001, and apoB48AUC : 173.0 ± 20.86 vs 61.99 ± 3.44, P < .001). Furthermore, fasting plasma apoB48-remnants were positively correlated with the non-fasting response in apoB48AUC (r = 0.84, P < .0001) as well as other cardiometabolic risk factors including HOMA-IR (r = 0.61, P < .001) and leptin (r = 0.56, P < .0001). CONCLUSION Fasting apoB48-remnants are elevated in youth with obesity and predict apoB48 postprandial dyslipidemia. ApoB48-remnants are associated with the extent of fat intolerance and appear to be potential biomarker of CVD-risk in youth.
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Strategies to reduce attrition in managing paediatric obesity: A systematic review. Pediatr Obes 2021; 16:e12733. [PMID: 32959990 DOI: 10.1111/ijpo.12733] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/27/2020] [Accepted: 09/07/2020] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To conduct a systematic review of the literature for strategies designed to reduce attrition in managing paediatric obesity. METHODS We searched Ovid Medline (1946 to May 6, 2020), Ovid Embase (1974 to May 6, 2020), EBSCO CINAHL (inception to May 6, 2020), Elsevier Scopus (inception to April 14, 2020), and ProQuest Dissertations & Theses (inception to April 14, 2020). Reports were eligible if they included any obesity management intervention, included 2 to 18 year olds with overweight or obesity (or if the mean age of participants fell within this age range), were in English, included experimental study designs, and had attrition reduction as a main outcome. Two team members screened studies, abstracted data, and appraised study quality. RESULTS Our search yielded 5,415 original reports; six met inclusion criteria. In three studies, orientation sessions (n = 2) and motivational interviewing (MI) (n = 1) were used as attrition-reduction strategies before treatment enrollment; in three others, text messaging (n = 2) and MI (n = 1) supplemented existing obesity management interventions. Attrition-reduction strategies led to decreased attrition in two studies, increased in one, and no difference in three. For the two strategies that reduced attrition, (a) pre-treatment orientation and (b) text messaging between children and intervention providers were beneficial. The quality of the six included studies varied (good [n = 4]; poor [n = 2]). CONCLUSION Some evidence suggests that attrition can be reduced. The heterogeneity of approaches applied and small number of studies included highlight the need for well-designed, experimental research to test the efficacy and effectiveness of strategies to reduce attrition in managing paediatric obesity.
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Efficacy of metformin and fermentable fiber combination therapy in adolescents with severe obesity and insulin resistance: study protocol for a double-blind randomized controlled trial. Trials 2021; 22:148. [PMID: 33596993 PMCID: PMC7890810 DOI: 10.1186/s13063-021-05060-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/20/2021] [Indexed: 02/08/2023] Open
Abstract
Background Accumulating evidence suggests that the metabolic effects of metformin and fermentable fibers are mediated, in part, through diverging or overlapping effects on the composition and metabolic functions of the gut microbiome. Pre-clinical animal models have established that the addition of fiber to metformin monotherapy improves glucose tolerance. However, possible synergistic effects of combination therapy (metformin plus fiber) have not been investigated in humans. Moreover, the underlying mechanisms of synergy have yet to be elucidated. The aim of this study is to compare in adolescents with obesity the metabolic effects of metformin and fermentable fibers in combination with those of metformin or fiber alone. We will also determine if therapeutic responses correlate with compositional and functional features of the gut microbiome. Methods This is a parallel three-armed, double-blinded, randomized controlled trial. Adolescents (aged 12–18 years) with obesity, insulin resistance (IR), and a family history of type 2 diabetes mellitus (T2DM) will receive either metformin (850 mg p.o. twice/day), fermentable fibers (35 g/day), or a combination of metformin plus fiber for 12 months. Participants will be seen at baseline, 3, 6, and 12 months, with a phone follow-up at 1 and 9 months. Primary and secondary outcomes will be assessed at baseline, 6, and 12 months. The primary outcome is change in IR estimated by homeostatic model assessment of IR; key secondary outcomes include changes in the Matsuda index, oral disposition index, body mass index z-score, and fat mass to fat-free mass ratio. To gain mechanistic insight, endpoints that reflect host-microbiota interactions will also be assessed: obesity-related immune, metabolic, and satiety markers; humoral metabolites; and fecal microbiota composition, short-chain fatty acids, and bile acids. Discussion This study will compare the potential metabolic benefits of fiber with those of metformin in adolescents with obesity, determine if metformin and fiber act synergistically to improve IR, and elucidate whether the metabolic benefits of metformin and fiber associate with changes in fecal microbiota composition and the output of health-related metabolites. This study will provide insight into the potential role of the gut microbiome as a target for enhancing the therapeutic efficacy of emerging treatments for T2DM prevention. Trial registration ClinicalTrials.gov NCT04578652. Registered on 8 October 2020. Supplementary Information The online version contains supplementary material available at 10.1186/s13063-021-05060-8.
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Evaluation of the Trends, Characteristics, and Outcomes in North American Youth Undergoing Elective Bariatric Surgery. Obes Surg 2021; 31:2180-2187. [PMID: 33548012 DOI: 10.1007/s11695-021-05248-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/18/2021] [Accepted: 01/20/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Severe obesity is increasingly common in youth and young adults, but outcomes following bariatric surgery remain largely unknown. The purpose of this study was to examine the trends, clinical characteristics, and postoperative outcomes of youth who underwent bariatric surgery. METHODS This retrospective cohort study was conducted using the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) data registry from 2015 to 2018 inclusive. All youth and young adults aged 15-24 who underwent elective sleeve gastrectomy (SG) or Roux-en-Y gastric bypass (RYGB) were included. Bivariate analysis of trends, clinical characteristics, and postoperative outcomes was performed using Chi-squared tests for categorical variables and independent two sample t test for continuous variables. Multivariable logistic regression modeling was used to determine patient and operative factors predictive of serious complications. RESULTS A total of 21,592 youth and young adults underwent bariatric surgery during the study time frame, representing 3.7% of total cases (n = 583,567) within the MBSAQIP. The cohort had a mean age of 21.5 ± 2.0 years and a mean BMI of 47.2 ± 8.0 kg/m2 and were predominantly female (84%). A relatively constant number of youth and young adult cases per hospital were observed over time (7.4 cases/center in 2015 vs. 6.7 cases/center in 2018). Overall, < 5% of cases required reoperation, reintervention, and readmission, or led to serious complications within 30 days of surgery. Multivariable logistic regression analysis identified RYGB as the single greatest independent predictor of serious complications (OR 3.1; 95% CI 2.58-3.64; p < 0.0001). Additional factors predictive of serious complications included female sex (OR 1.31; 95% CI 1.01-1.70; p = 0.04), sleep apnea (OR 1.27; 95% CI 1.02-1.58), and non-insulin-dependent diabetes (OR 1.35; 95% CI 1.04-1.75; p = 0.025). CONCLUSION Bariatric surgery in youth is safe but comprised only 3.7% of total MBSAQIP cases from 2015 to 2018. These data should serve as a call to government and healthcare agencies to develop policies and strategies that prioritize bariatric surgery for young people living with severe obesity.
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"It's not a simple answer." A qualitative study to explore how healthcare providers can best support families with a child with autism spectrum disorder and overweight or obesity. Disabil Rehabil 2021; 44:3540-3546. [PMID: 33399017 DOI: 10.1080/09638288.2020.1867909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
PURPOSE This qualitative study aimed to explore the experiences of parents supporting their child with Autism Spectrum Disorder (ASD) and overweight or obesity (OW/OB), including their weight management support needs. METHODS Interview transcripts were analysed using inductive thematic analysis. Nine parents (n = 9 mothers) of ten children with ASD (7 males, 3 females) participated in individual semi-structured interviews. RESULTS The three themes developed were: (1) Our journey to obtain weight management support; (2) I need real-world solutions; and (3) The what, who and how of our weight management needs. Parents reported being proactive in seeking weight management support for their child but were disappointed with the services offered. Resources were not tailored to the child's complex nutrition and behavioural issues or their abilities and functioning. A multidisciplinary approach that integrated both disability and weight management expertise was desired, but not experienced. A range of formal and informal programs were recommended. CONCLUSION This study provides a call to action for supports that ensure children with ASD and OW/OB receive integrated, individualised support to maximise their health and wellness.Implications for rehabilitationChildren with autism spectrum disorder (ASD) are at high risk of developing overweight or obesity.The weight management support needs of parents of children with ASD and overweight or obesity are not being met.Support must be tailored to the child's needs, which are often complex.Health services that integrate expertise in both disability and weight management are needed for children with ASD and their families.
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Abstract
Background: The purpose of this study was to evaluate the effectiveness of a 10-week blended family-based childhood obesity management program, relative to a wait-list control, in improving child body mass index (BMI) z-scores, child lifestyle behaviors, parental support for healthy eating and physical activity, and self-regulation for healthy eating and physical activity support. Methods: This study was registered as a randomized wait-listed controlled trial; however, due to low recruitment and program delivery logistics, this study transitioned into a quasi-experimental design. Families with children 8-12 years of age with a BMI ≥85th percentile for age and sex were recruited (October 2018 to March 2019) in British Columbia, Canada. The intervention provided families 10 weeks of in-person and online support on improving lifestyle behaviors. Results: Children's BMI z-scores were not significantly changed. Intervention group significantly improved their days of moderate-to-vigorous physical activity relative to control (0.75 ± 1.5; p < 0.01; ηp2 = 0.15); however, child dietary behaviors were not significantly changed. Relative to control, intervention group showed significant improvements in parental support for healthy eating (0.13 ± 0.36; p < 0.05; ηp2 = 0.06) and physical activity (1.0 ± 1.6; p < 0.05; ηp2 = 0.09) and self-regulation for healthy eating (2.0 ± 3.5; p < 0.01; ηp2 = 0.11) and physical activity support (2.0 ± 3.2; p < 0.05; ηp2 = 0.28). Conclusions: Preliminary evidence showed that the intervention was not effective in improving child BMI z-scores, but it was effective in promoting children's physical activity and parents' support behaviors. A longer study period may be required to change BMI z-scores. Clinical Trial Registration number: NCT03643341.
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Health care providers' weight management practices for adolescent obesity and alignment with clinical practice guidelines: a multi-centre, qualitative study. BMC Health Serv Res 2020; 20:850. [PMID: 32912259 PMCID: PMC7488259 DOI: 10.1186/s12913-020-05702-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/31/2020] [Indexed: 12/02/2022] Open
Abstract
Background Clinical practice guidelines (CPGs) include evidence-based recommendations for managing obesity in adolescents. However, information on how health care providers (HCPs) implement these recommendations in day-to-day practice is limited. Our objectives were to explore how HCPs deliver weight management health services to adolescents with obesity and describe the extent to which their reported practices align with recent CPGs for managing pediatric obesity. Methods From July 2017 to January 2018, we conducted a qualitative study that used purposeful sampling to recruit HCPs with experience in adolescent weight management from multidisciplinary, pediatric weight management clinics in Edmonton and Ottawa, Canada. Data were collected using audio-recorded focus groups (4–6 participants/group; 60–90 min in length). We applied inductive, semantic thematic analysis and the congruent methodological approach to analyze our data, which included transcripts, field notes, and memos. Qualitative data were compared to recent CPGs for pediatric obesity that were published by the Endocrine Society in 2017. Of the 12 obesity ‘treatment-related’ recommendations, four were directly relevant to the current study. Results Data were collected through three focus groups with 16 HCPs (n = 10 Edmonton; n = 6 Ottawa; 94% female; 100% Caucasian), including dietitians, exercise specialists, nurses, pediatricians, psychologists, and social workers. We identified three main themes that we later compared with CPG recommendations, including: (i) discuss realistic expectations regarding weight management (e.g., shift focus from weight to health; explore family cohesiveness; foster delayed vs instant gratification), (ii) personalize weight management (e.g., address personal barriers to change; consider developmental readiness), and (iii) exhibit non-biased attitudes and practices (e.g., de-emphasize individual causes of obesity; avoid making assumptions about lifestyle behaviors based on weight). Based on these qualitative findings, HCPs applied all four CPG recommendations in their practices. Conclusions HCPs provided practical insights into what and how they delivered weight management for adolescents, which included operationalizing relevant CPG recommendations in their practices.
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Effectiveness and safety of interventions to manage childhood overweight and obesity: An Overview of Cochrane systematic reviews. Paediatr Child Health 2020; 26:310-316. [PMID: 34336060 DOI: 10.1093/pch/pxaa085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 06/12/2020] [Indexed: 11/15/2022] Open
Abstract
Background Childhood overweight and obesity are associated with adverse physical, social, and psychological outcomes. Objectives We conducted an overview of Cochrane systematic reviews on the effectiveness and risks of interventions to treat overweight and obesity in children and adolescents. Methods In June 2019, we searched the Cochrane Database of Systematic Reviews for eligible reviews. The primary outcomes were change in adiposity (body mass and body mass index [BMI] z-score) and adverse events. Two reviewers screened studies and one reviewer extracted and another verified data. Two reviewers assessed methodological quality and reached consensus. Data were synthesized narratively. Results We included seven Cochrane reviews published between 2011 and 2017 containing evidence from 167 randomized controlled trials with 21,050 participants. Lifestyle and behavioural interventions more effectively reduced weight compared with no intervention, usual care, or another behavioural treatment (three reviews, low-to-moderate certainty). Parent-child lifestyle and behavioural interventions more effectively reduced BMI z-score compared with no intervention (one review, low certainty). Decision support tools for healthcare providers more effectively limited increases in BMI z-score compared with usual care (one review, moderate certainty). Pharmacologic treatments combined with behavioural modification more effectively reduced adiposity compared with placebo or usual care (one review, low certainty), but the risk of adverse events was greater than non-pharmacologic therapy. Surgical interventions (e.g., LAP-BAND) combined with behavioural modification more effectively reduced adiposity compared with behavioural modification alone (one review, low certainty). Those who underwent surgery reported a higher number of adverse events compared with those treated with lifestyle modification. Conclusions There is low-certainty evidence that lifestyle and behavioural interventions, pharmacologic interventions, and surgical interventions are effective in weight management for children with overweight and obesity. Safety data remain lacking across all intervention modalities. Future research should focus on implementation strategies. Further, a focus on overall well-being may be more beneficial than weight management specifically.
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Conversation Cards for Adolescents©: a patient-centered communication and behavior change tool for adolescents with obesity and health care providers. ACTA ACUST UNITED AC 2020. [DOI: 10.1080/17538068.2020.1765126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Cow's Milk Fat Obesity pRevention Trial (CoMFORT): a primary care embedded randomised controlled trial protocol to determine the effect of cow's milk fat on child adiposity. BMJ Open 2020; 10:e035241. [PMID: 32385063 PMCID: PMC7228521 DOI: 10.1136/bmjopen-2019-035241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 03/13/2020] [Accepted: 04/09/2020] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Cow's milk is a dietary staple for children in North America. Though clinical guidelines suggest children transition from whole (3.25% fat) milk to reduced (1% or 2%) fat milk at age 2 years, recent epidemiological evidence supports a link between whole milk consumption and lower adiposity in children. The purpose of this trial is to determine which milk fat recommendation minimises excess adiposity and optimises child nutrition and growth. METHODS AND ANALYSIS Cow's Milk Fat Obesity pRevention Trial will be a pragmatic, superiority, parallel group randomised controlled trial involving children receiving routine healthcare aged 2 to 4-5 years who are participating in the TARGet Kids! practice-based research network in Toronto, Canada. Children (n=534) will be randomised to receive one of two interventions: (1) a recommendation to consume whole milk or (2) a recommendation to consume reduced (1%) fat milk. The primary outcome is adiposity measured by body mass index z-score and waist circumference z-score; secondary outcomes will be cognitive development (using the Ages and Stages Questionnaire), vitamin D stores, cardiometabolic health (glucose, high-sensitivity C-reactive protein, non-high density lipoprotein (non-HDL), low density lipoprotein (LDL), triglyceride, HDL and total cholesterol, insulin and diastolic and systolic blood pressure), sugary beverage and total energy intake (measured by 24 hours dietary recall) and cost effectiveness. Outcomes will be measured 24 months postrandomisation and compared using analysis of covariance (ANCOVA), adjusting for baseline measures. ETHICS AND DISSEMINATION Ethics approval has been obtained from Unity Health Toronto and The Hospital for Sick Children. Results will be presented locally, nationally and internationally and published in a peer-reviewed journal. The findings may be helpful to nutrition guidelines for children in effort to reduce childhood obesity using a simple, inexpensive and scalable cow's milk fat intervention. TRIAL REGISTRATION NUMBER NCT03914807; pre-results.
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Comparison of dietary macronutrient patterns of 14 popular named dietary programmes for weight and cardiovascular risk factor reduction in adults: systematic review and network meta-analysis of randomised trials. BMJ 2020; 369:m696. [PMID: 32238384 PMCID: PMC7190064 DOI: 10.1136/bmj.m696] [Citation(s) in RCA: 175] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To determine the relative effectiveness of dietary macronutrient patterns and popular named diet programmes for weight loss and cardiovascular risk factor improvement among adults who are overweight or obese. DESIGN Systematic review and network meta-analysis of randomised trials. DATA SOURCES Medline, Embase, CINAHL, AMED, and CENTRAL from database inception until September 2018, reference lists of eligible trials, and related reviews. STUDY SELECTION Randomised trials that enrolled adults (≥18 years) who were overweight (body mass index 25-29) or obese (≥30) to a popular named diet or an alternative diet. OUTCOMES AND MEASURES Change in body weight, low density lipoprotein (LDL) cholesterol, high density lipoprotein (HDL) cholesterol, systolic blood pressure, diastolic blood pressure, and C reactive protein at the six and 12 month follow-up. REVIEW METHODS Two reviewers independently extracted data on study participants, interventions, and outcomes and assessed risk of bias, and the certainty of evidence using the GRADE (grading of recommendations, assessment, development, and evaluation) approach. A bayesian framework informed a series of random effects network meta-analyses to estimate the relative effectiveness of the diets. RESULTS 121 eligible trials with 21 942 patients were included and reported on 14 named diets and three control diets. Compared with usual diet, low carbohydrate and low fat diets had a similar effect at six months on weight loss (4.63 v 4.37 kg, both moderate certainty) and reduction in systolic blood pressure (5.14 mm Hg, moderate certainty v 5.05 mm Hg, low certainty) and diastolic blood pressure (3.21 v 2.85 mm Hg, both low certainty). Moderate macronutrient diets resulted in slightly less weight loss and blood pressure reductions. Low carbohydrate diets had less effect than low fat diets and moderate macronutrient diets on reduction in LDL cholesterol (1.01 mg/dL, low certainty v 7.08 mg/dL, moderate certainty v 5.22 mg/dL, moderate certainty, respectively) but an increase in HDL cholesterol (2.31 mg/dL, low certainty), whereas low fat (-1.88 mg/dL, moderate certainty) and moderate macronutrient (-0.89 mg/dL, moderate certainty) did not. Among popular named diets, those with the largest effect on weight reduction and blood pressure in comparison with usual diet were Atkins (weight 5.5 kg, systolic blood pressure 5.1 mm Hg, diastolic blood pressure 3.3 mm Hg), DASH (3.6 kg, 4.7 mm Hg, 2.9 mm Hg, respectively), and Zone (4.1 kg, 3.5 mm Hg, 2.3 mm Hg, respectively) at six months (all moderate certainty). No diets significantly improved levels of HDL cholesterol or C reactive protein at six months. Overall, weight loss diminished at 12 months among all macronutrient patterns and popular named diets, while the benefits for cardiovascular risk factors of all interventions, except the Mediterranean diet, essentially disappeared. CONCLUSIONS Moderate certainty evidence shows that most macronutrient diets, over six months, result in modest weight loss and substantial improvements in cardiovascular risk factors, particularly blood pressure. At 12 months the effects on weight reduction and improvements in cardiovascular risk factors largely disappear. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42015027929.
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Aim2Be mHealth intervention for children with overweight and obesity: study protocol for a randomized controlled trial. Trials 2020; 21:132. [PMID: 32014057 PMCID: PMC6998843 DOI: 10.1186/s13063-020-4080-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 01/16/2020] [Indexed: 11/24/2022] Open
Abstract
Background The prevalence of overweight and obesity remains high in Canada, and the current standard for the treatment of childhood obesity is in-person, family-based, multidisciplinary interventions that target lifestyle behaviors (e.g., diet, physical activity, and sedentary behaviors). These programs are costly to operate, have limited success, and report recruitment and retention challenges. With recent advances in technology, mobile health or mHealth has been presented as a viable alternative to in-person interventions for behavior change, especially with teens. Purpose The primary aim of this study is to test the efficacy of Aim2Be, a gamified app based on behavior change theory with health coaching to improve weight outcomes (i.e., decrease in standardized body mass index (zBMI)) and lifestyle behaviors (i.e., improve dietary quality, increase fruit and vegetable intake, reduce sugar-sweetened beverage intake, increase physical activity, and reduce screen time) among children 10- to 17-years old with overweight or obesity versus their peers randomized into a waitlist control condition. The secondary aims of this study are to 1) test whether supplementing the Aim2Be program with health coaching increases adherence and 2) examine the mediators and moderators of adherence to the Aim2Be intervention. Methods We will employ a randomized controlled trial design and recruit 200 child and parent dyads to participate in the study (2019–2020). Participants will be recruited from Canadian pediatric weight management clinics and through online advertisements. Child participants must be between the ages of 10 and 17 years, have overweight or obesity, be able to read English at least at a grade 5 level, and have a mobile phone or home computer with internet access. Following baseline data collection, participants will be randomized into intervention and waitlist control groups. Intervention participants will receive access to Aim2Be, with access to health coaching. After having their data collected for 3 months, the control group will gain access to Aim2Be, with no access to health coaching. Participants will control their frequency and duration of app usage to promote autonomy. Discussion Findings from this study will determine the efficacy of using Aim2Be in improving child weight outcomes and lifestyle behaviors and guide future mHealth interventions for pediatric weight management. Trial registration ClinicalTrials.gov, NCT03651284. Registered 29 August 2018.
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Implementation of Healthy Eating Interventions in Center-Based Childcare: The Selection, Application, and Reporting of Theories, Models, and Frameworks. Am J Health Promot 2020; 34:402-417. [PMID: 31983219 DOI: 10.1177/0890117119895951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
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.
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No additional long-term effect of group vs individual family intervention in the treatment of childhood obesity-A randomised trial. Acta Paediatr 2020; 109:183-192. [PMID: 31240752 DOI: 10.1111/apa.14916] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 06/14/2019] [Accepted: 06/24/2019] [Indexed: 12/29/2022]
Abstract
AIM Long-term evaluations of childhood obesity treatments are needed. We examined changes in weight and cardiometabolic risk 1 year after children completed individual family or group-based weight management interventions. METHODS In 2009-2010, 6- to 12-year-old children with overweight or obesity from Finnmark and Troms (Norway) were recruited after media coverage and randomised to 24 months of individual family (n = 49) or group intervention (n = 48). Individual family intervention included counselling by a paediatric hospital team and a public health nurse in the local community. Group intervention included meetings with other families and a multidisciplinary hospital team, weekly physical activity sessions and a family camp. The primary outcome body mass index (BMI) and cardiometabolic risk factors were analysed 12 months after intervention. RESULTS From baseline to 36 months, children's BMI increased 3.0 kg/m2 in individual family and 2.1 kg/m2 in group intervention (between-group -0.9kg/m2 , P = 0.096). Data were available from 62 children (64%). Between-group differences in C peptide (P = 0.01) were detected in favour of group intervention. Pooled data from both treatment groups showed continued decrease in BMI standard deviation score (P < 0.001). CONCLUSION No between-group difference in BMI was observed 12 months after intervention. Both groups combined showed sustained decrease in BMI standard deviation score.
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Feasibility, user experiences, and preliminary effect of Conversation Cards for Adolescents© on collaborative goal-setting and behavior change: protocol for a pilot randomized controlled trial. Pilot Feasibility Stud 2019; 5:149. [PMID: 31890261 PMCID: PMC6918564 DOI: 10.1186/s40814-019-0533-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 11/22/2019] [Indexed: 01/29/2023] Open
Abstract
Background Adolescents and providers can benefit from practical tools targeting lifestyle modification for obesity prevention and management. We created Conversation Cards for Adolescents© (CCAs), a patient-centered communication and behavior change tool for adolescents and providers to use in clinical practice. The purpose of our study is to (i) assess the feasibility of CCAs in a real-world, practice setting to inform full-scale trial procedures, (ii) assess user experiences of CCAs, and (iii) determine the preliminary effect of CCAs on changing behavioral and affective-cognitive outcomes among adolescents. Methods Starting in early 2019, this prospective study is a nested mixed-methods, theory-driven, and pragmatic pilot randomized controlled trial with a goal to enroll 50 adolescents (13–17 years old) and 9 physicians practicing at the Northeast Community Health Centre in Edmonton, Alberta, Canada. Adolescents will collaboratively set one S.M.A.R.T. (specific, measurable, attainable, realistic, timely) goal with their physician to implement over a 3-week period; however, only those randomized to the experimental group will use CCAs to inform their goal. Outcome assessments at baseline and follow-up (3 weeks post-baseline) will include behavioral, affective-cognitive, and process-related outcomes. Discussion In examining the feasibility, user experiences, and preliminary effect of CCAs, our study will add contributions to the obesity literature on lifestyle modifications among adolescents in a real-world, practice setting as well as inform the scalability of our approach for a full-scale effectiveness randomized controlled trial on behavior change. Trial registration ClinicalTrials.gov Identifier: NCT03821896.
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A proposed standardized approach to studying attrition in pediatric weight management. Obes Res Clin Pract 2019; 14:60-65. [PMID: 31818674 DOI: 10.1016/j.orcp.2019.11.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 07/29/2019] [Accepted: 11/20/2019] [Indexed: 11/19/2022]
Abstract
Pediatric obesity is a major public health issue. Lifestyle and behavioral interventions are the foundation of pediatric weight management; however, intervention effectiveness is compromised when families (children, youth, and/or parent[s]) discontinue care prematurely. Intervention attrition minimizes the potential health benefits derived from interventions, results in inefficient use of health services resources, and can magnify health disparities. Most attrition research in pediatric weight management has been descriptive, highlighting the need to advance the field, both academically and clinically. Herein, we propose a standard approach to studying attrition in pediatric weight management interventions to enhance our understanding, elevate the quality of research, enable study-to-study comparisons, and inform strategies designed to mitigate its impact. We focus on three issues. First, "Conceptualization and operationalization," whereby the processes underlying attrition from interventions should be decomposed into clinically important phases that are defined based on intervention characteristics. Relatedly, theoretically relevant variables should be identified with different mechanisms driving attrition in each phase. We propose a matrix of attrition, a tool designed to delineate the relevant stages of attrition and associated variables of analytical value. Second, "Pre-study" underscores the value of developing a plan to study attrition a priori rather than post hoc, including variable and sample size considerations, which broadens the range and quality of analysis. Finally, "Post-study" emphasizes comprehensive reporting of attrition, outlines typical comparisons of analytical interest, and statistical techniques used to handle missing data. Implications for clinical practice in pediatric weight management are discussed. Clinical Trial Registration: Not applicable.
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Motivated, Fit, and Strong-Using Counter-Stereotypical Images to Reduce Weight Stigma Internalisation in Women with Obesity. Appl Psychol Health Well Being 2019; 12:335-356. [PMID: 31714033 DOI: 10.1111/aphw.12187] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 08/30/2019] [Accepted: 10/16/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND This study aimed to use implicit retraining to change automatic associations between body size and physical activity (PA) in women with obesity to reduce weight bias internalisation (WBI). METHODS A Solomon-square experimental design was used to determine the effect of a four-week online implicit retraining intervention on WBI (primary measure) and PA attitudes, self-efficacy, and self-reported behaviour (secondary measures). The intervention was a visual probe task pairing counter-stereotypical images of active individuals with obesity with positive PA-related words. In qualitative telephone interviews, a sub-sample of participants provided feedback and recommendations for using counter-stereotypical images in PA promotion. RESULTS Women completed the intervention (n = 48) or a control task (n = 55). Results of a RM-ANOVA showed no interaction or main effect of group on WBI. A main effect of time demonstrated that both groups had reduced WBI between pre-test and post-test, through to one-week follow-up. There were no differences between groups or over time for PA attitudes, self-efficacy, or behaviour. Women who completed interviews (n = 16) discussed several benefits and drawbacks of using counter-stereotypical images. CONCLUSION Implicit retraining did not reduce WBI but qualitative findings support the use of counter-stereotypical PA images.
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End-user perspectives to inform policy and program decisions: a qualitative and quantitative content analysis of lifestyle treatment recommendations by adolescents with obesity. BMC Pediatr 2019; 19:418. [PMID: 31699060 PMCID: PMC6839254 DOI: 10.1186/s12887-019-1749-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 09/25/2019] [Indexed: 11/12/2022] Open
Abstract
Background Lifestyle modifications represent the first line of treatment in obesity management; however, many adolescents with obesity do not meet lifestyle recommendations. Given that adolescents are rarely consulted during health policy development and in the design of lifestyle interventions, their first-hand experiences, preferences, and priorities may not be represented. Accordingly, our purpose was to explore adolescents’ lifestyle treatment recommendations to inform policy and program decisions. Methods Conducted from July 2017 to January 2018, this study adhered to a qualitative, crosslanguage, patient-oriented design. We recruited 19 13–17-year-old adolescents (body mass index [BMI] ≥85th percentile) seeking multidisciplinary treatment for obesity in geographically and culturally diverse regions of Canada. Adolescents participated in one-on-one, in-person, semi-structured interviews in English or French. Interviews were audio-recorded, transcribed verbatim, managed using NVivo 11, and analyzed using quantitative and qualitative content analysis by two independent researchers. Results Adolescents’ recommendations were organized into five categories, each of which denotes health as a collective responsibility: (i) establish parental support within limits, (ii) improve accessibility and availability of ‘healthy foods’, (iii) limit deceptive practices in food marketing, (iv) improve accessibility and availability of varied physical activity opportunities, and (v) delay school start times. Respect for individual autonomy and decision-making capacity were identified as particularly important, however these were confronted with adolescents’ partial knowledge on nutrition and food literacy. Conclusions Adolescents’ recommendations highlighted multi-level, multi-component factors that influenced their ability to lead healthy lifestyles. Uptake of these recommendations by policy-makers and program developers may be of added value for lifestyle treatment targeting adolescents with obesity.
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Changes in the prevalence of overweight, obesity, and severe obesity between 2010 and 2017 in preschoolers: A population-based study. Pediatr Obes 2019; 14:e12561. [PMID: 31318175 DOI: 10.1111/ijpo.12561] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 05/29/2019] [Indexed: 12/31/2022]
Abstract
We evaluated changes in overweight, obesity, and severe obesity in a population of 4- to 6-year-olds from 2010 to 2017. Anthropometric data were collected during children's preschool immunization visits in Edmonton and Calgary, Alberta, Canada. Body mass index (BMI), BMI z scores, and weight status categories were based on the World Health Organization criteria. Across 8 years, we examined population-level data from 161 114 children in which the prevalence of overweight (17.8%-15.7%; P < .001) and obesity (4.7%-4.2%; .004) decreased, while severe obesity (2.4%-2.2%; .3) remained unchanged. Overweight decreased in both boys (19.2%-16.8%; P < .0001) and girls (16.4%-14.6%; .003); obesity decreased in boys (5.3%-4.4%; .005), but not girls (4.1%-3.9%; .2). Severe obesity was stable in both sexes. Annual household income and breast feeding had positive, but variable moderating effects on overweight and obesity exclusively. Overall, reductions in overweight and obesity were positive findings, but targeted strategies are needed to reduce severe obesity in preschoolers.
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Family-based, healthy living intervention for children with overweight and obesity and their families: a 'real world' trial protocol using a randomised wait list control design. BMJ Open 2019; 9:e027183. [PMID: 31676642 PMCID: PMC6830831 DOI: 10.1136/bmjopen-2018-027183] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 09/18/2019] [Accepted: 10/02/2019] [Indexed: 01/19/2023] Open
Abstract
INTRODUCTION Family-based behavioural weight management interventions are efficacious and widely used to address childhood obesity. Curriculum and strategies vary extensively and scale-up often depends on ensuring that the intervention fits the adoption context. AIMS AND OBJECTIVES To evaluate the impact and implementation of a 'made in British Columbia' (BC) family-based early intervention programme (EIP) for 8-12 years old with overweight and obesity and their families. METHODS AND ANALYSIS A randomised waitlist-control trial will assess a 10-week interactive, family-based lifestyle intervention followed by four maintenance sessions, in BC, Canada. We aim to enrol 186 families. The blended intervention includes at least 26 contact hours between participants and programme providers, including interactive activities and educational materials through weekly 90-min group sessions, an online family portal, and self-directed family activities. Curricular content includes information and activities related to healthy eating, physical activity (PA), positive mental health, parenting practices and sleep hygiene. The waitlist control group will receive a modified programme with the same 10-week sessions in the family portal, and four group sessions. Families participate in data collection at baseline, postintervention (week 10) and follow-up (week 18). The primary outcome is to assess changes in child body mass index z-score at 10 weeks between the groups. Secondary outcomes include changes at 10 weeks between the groups in child and parent PA behaviour and skills, healthy eating behaviour, and mental health. Process evaluation will address reach, implementation and maintenance (baseline, 10-week and 18-week) using recruitment tracking forms, parent questionnaire, programme attendance tracking forms, leader feedback surveys, parents and children satisfaction surveys and postprogramme interviews with facilitators, stakeholders and parents. Intention-to-treat analyses will be conducted. Process evaluation will be analysed thematically. ETHICS AND DISSEMINATION Study procedures were designed to address research and community needs and will follow ethical standards. TRIAL REGISTRATION NUMBER NCT03643341.
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Access to Multidisciplinary Care for Pediatric Weight Management: Exploring Perspectives of the Health Care Team within Canada and the United States. Child Obes 2019; 15:363-370. [PMID: 31099587 DOI: 10.1089/chi.2019.0011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Background: In Canada and the United States, most families referred for pediatric weight management services do not start treatment. Of families who initiate care, many discontinue before the program ends. Parents and youth have reported difficulties in accessing services as an important barrier to starting or completing programming. The purpose of this study was to understand barriers and identify potential solutions related to access to care from the perspective of health care team members from Canada and the United States. Methods: Qualitative description method guided the study design. Participants were health care team members, purposefully recruited through Canadian and US-based pediatric weight management program registries. Telephone interviews were conducted with participants between February and May 2017. Interviews were transcribed verbatim and analyzed using content analysis. Results: Eighteen individuals from 16 sites participated (n = 8 Canada, n = 8 United States). Access barriers and potential solutions were related to: (1) referral and eligibility, (2) wait lists and program capacity, (3) logistics and costs, and (4) stigma and weight bias. Barriers were similar between Canadian and US sites, with the exception of cost-related barriers. Conclusions: Health care providers from Canada and the United States reported multiple societal, organizational, service, and family-level barriers to accessing multidisciplinary pediatric weight management care. Proposed solutions suggest that service providers can play a key role alongside families to improve access to appropriate care. Further research is needed to demonstrate the feasibility and effectiveness of proposed solutions.
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Adolescents' involvement in decision-making for pediatric weight management: A multi-centre, qualitative study on perspectives of adolescents and health care providers. PATIENT EDUCATION AND COUNSELING 2019; 102:1194-1202. [PMID: 30791989 DOI: 10.1016/j.pec.2019.01.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 01/15/2019] [Accepted: 01/18/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To explore adolescents' and health care providers' (HCPs) perspectives on adolescents' involvement in decision-making within multidisciplinary clinical care for pediatric weight management. METHODS In this multi-centre, qualitative description study, we purposefully recruited 13-17-year-olds with overweight or obesity and HCPs from two pediatric weight management clinics in Edmonton and Ottawa, Canada. Participants completed one-on-one, in-person, semi-structured interviews (adolescents) or focus groups (HCPs), which were audio-recorded, transcribed verbatim, and managed using NVivo 11. Data were analyzed by two independent researchers using inductive thematic analysis and the congruent methodological approach for group interactions. RESULTS A total of 19 adolescents and 16 HCPs participated. Three themes were identified in relation to adolescents' decision-making for weight management, including (i) conditions for adolescent involvement, (ii) preferences for adolescent involvement, and (iii) extent of parental involvement. CONCLUSIONS Although adolescents and HCPs positively valued adolescents' involvement in making decisions regarding their weight and health, the extent to which adolescents wished to be involved in the decision-making process varied between individuals and families. PRACTICE IMPLICATIONS HCPs are encouraged to include adolescents and families in their health services delivery, including consulting individually with adolescents and tailoring care to their expectations regarding decision-making.
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Continued attendance for paediatric weight management: A multicentre, qualitative study of parents' reasons and facilitators. Clin Obes 2019; 9:e12304. [PMID: 30775853 DOI: 10.1111/cob.12304] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 10/02/2018] [Accepted: 11/06/2018] [Indexed: 11/30/2022]
Abstract
Although prolonged engagement in paediatric weight management (PWM) is associated with positive treatment outcomes, little is currently known about enablers of long-term programme attendance. The purpose of our study was to explore families' reasons for and facilitators of their continued attendance at health services for PWM. Semi-structured, individual interviews were conducted with parents of children (10-17 year old; body mass index ≥85th percentile) who completed the active phase of treatment in one of four Canadian multidisciplinary clinics for PWM. Interview data were recorded digitally, transcribed verbatim and analysed thematically. Parents' (n = 40) reasons for continued clinic attendance included ongoing concerns (eg, parental concern about their child's health), actual and expected benefits from treatment (eg, lifestyle improvements) and perceived quality of care (eg, structured, comprehensive, tailored health services). Several logistical and motivational factors contributed to continued attendance, including flexible work schedules, flexible appointment times, financial resources and children's motivation for treatment. Helping families address treatment barriers and ensuring that weight management services meet families' treatment expectations are promising strategies to enhance retention in PWM to optimize health outcomes.
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Diet, physical activity, and behavioural interventions for the treatment of overweight or obesity in children and adolescents. Paediatr Child Health 2019; 24:377-382. [PMID: 31528109 DOI: 10.1093/pch/pxz006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 11/01/2018] [Accepted: 11/02/2018] [Indexed: 12/12/2022] Open
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