It is well known the influence that parents and peers
have in children and adolescent choices and behaviors, including eating
habits and physical activity practice. No work has been done yet
about parents and peers influence in nutrition knowledge.
This work aims to study the relation between adolescents’ perception
of parents and peers food habits, physical activity practice, stimulus
to the adolescent to follow a healthy diet and be physically active
and adolescents Nutritional Knowledge.
Methods: A translated and validated version of the Nutritional
Knowledge Questionnaire (Parmenter and Wardle, 1999) was used
with another questionnaire about adolescents’ perception of parents
and peers behavior and stimulus. Results: Data from a 653 male and female sample, mean age
15.9 years (SD = 2.10) show that Nutrition Knowledge is related to
the perception adolescents have of their fathers’ physical activity
level (P < 0.05), and of their mothers (P < 0.05) and peers
(P < 0.01) healthy eating habits.
No statistical significance was found to the relation between nutrition
knowledge and all other adolescent perceptions.
Conclusions: These results suggest that beside there is a relation of
Nutrition Knowledge and parents and peers perceived habits, the
major role must be in schools. Showing that school based and adolescent
focused interventions must be planned to improve nutrition knowledge

Aires, Luísa

Ferro-Lebres, Vera

Moreira, Pedro

Ribeiro, José Carlos

Silva, Gustavo Gonçalves da

Silva, Gustavo Gonçalves

Biblioteca Digital do IPB

T5:PO.10Clinician perspectives on health behaviour change infamilies of overweight youthMatteson CL1, SSrikameswaran S2,3, Zelichowska J2,3,Chanoine JP3, Finegood DT1 and Geller J2,31Simon Fraser University, Burnaby, Canada; 2St. Paul’sHospital Eating Disorder Clinic, Vancouver, Canada;3University of British Columbia, Vancouver, CanadaIntroduction: Preventive and therapeutic interventions for obesityare largely unsuccessful in children and youth, reflected in high ratesof treatment refusal, dropout and relapse. Overweight individualscommonly report negative treatment experiences. This study seeks togain a greater understanding of clinicians’ perceptions of healthbehaviour change in families referred to a clinical pediatric weightloss program.Methods: A focus group comprised of dietitians, psychologists, andadministrative staff from a multidisciplinary team at a clinical weightloss centre was conducted. Perceptions of barriers and solutions toimproving healthy eating, physical activity, and reducing sedentarytime were recorded and transcribed. NVivo qualitative data analysissoftware (QSR International Pty Ltd. Version 8, 2008) was used totrack coding themes for node and case assignments using key con-cepts as an analytic framework, and to record researcher field notesand debriefing observations.Results: Unique and global barriers and solutions to improving diet,physical activity and reducing sedentary behaviours were identified.The data were categorized as practical or psychological in nature,and revealed substantial crossover in these contributing factors.Focus group participants noted that it was common for both healthcare providers and families to measure success exclusively basedupon weight changes, suggesting a limited view of health.Conclusion: Participants emphasized the importance of recognizingthe complexity of psychological and environmental factors in assist-ing overweight youth and their families. This work will foster pro-ductive dialogue with families of overweight youth engaging inhealth behaviour change.Conflict of interest: None disclosed.Funding: Research relating to this abstract was funded by the BCMedical Services Foundation (BCM08-0035), the Canadian Institutesof Health Research (MT-10574) and the Michael Smith Foundationfor Health Research.T5:PO.11Nutrition knowledge in adolescents: perception ofparents and peers behavior and stimulusFerro LV1,2, Ribeiro JC1, Moreira P3, Gonc¸alves da Silva G1and Aires L11Centro de Investigac¸a˜o em Actividade Fı´sica e Sau´de,Faculdade de Depsorto, Universidade do Porto, Portugal;2Escola Superior de Sau´de, Instituto Polite´cnico de Braganc¸a;3Faculdade de Cieˆncias da Nutric¸a˜o e Alimentac¸a˜o,Universidade do PortoIntroduction: It is well known the influence that parents and peershave in children and adolescent choices and behaviors, including eat-ing habits and physical activity practice. No work has been done yetabout parents and peers influence in nutrition knowledge.This work aims to study the relation between adolescents’ perceptionof parents and peers food habits, physical activity practice, stimulusto the adolescent to follow a healthy diet and be physically activeand adolescents Nutritional Knowledge.Methods: A translated and validated version of the NutritionalKnowledge Questionnaire (Parmenter and Wardle, 1999) was usedwith another questionnaire about adolescents’ perception of parentsand peers behavior and stimulus.Results: Data from a 653 male and female sample, mean age15.9 years (SD = 2.10) show that Nutrition Knowledge is related tothe perception adolescents have of their fathers’ physical activitylevel (P < 0.05), and of their mothers (P < 0.05) and peers(P < 0.01) healthy eating habits.No statistical significance was found to the relation between nutri-tion knowledge and all other adolescent perceptions.Conclusions: These results suggest that beside there is a relation ofNutrition Knowledge and parents and peers perceived habits, themajor role must be in schools. Showing that school based and ado-lescent focused interventions must be planned to improve nutritionknowledge.Conflict of interest: None disclosed.Funding: Research relating to this abstract was funded by Portu-guese Science and Technology Foundation, Project SFRH/PROTEC/49529/2009.T5:PO.12Childhood obesity: implications for marketsegmentationMackreth K1, Griffiths C1, Gately P1, Radley D1, Mackreth P1,Wilson A2 and Cooke C11Leeds Metropolitan University, Leeds, UK; 2Leeds CityCouncil, Leeds, UKIntroduction: Childhood Obesity is a UK government priority withone in three children affected. Stakeholders from public and privatesectors have implemented programmes and social marketing cam-paigns in an attempt to combat the rising prevalence. This task ismade extremely difficult without valid baseline data to begin to seg-ment the market and target those most in need. This study exploresthe childhood obesity market in Leeds, potentially informing decisionmaking on future market coverage strategies.Methods: Over a 3 year period, 14,697 children (aged11.5 ± 0.3 years) gave consent to be assessed for anthropometricmeasurements during their first term at secondary school. In additiongeodemographic variables thought to influence energy balance wereobtained at the individual level.Results: This study findings act as a useful front-end market segmen-tation tool providing a unique portrait of the local patterning ofchildhood obesity. The findings are contrary to the ‘deprivation the-ory’ which would predict that the most affluent areas have the low-est prevalence of obesity. The results demonstrate that the potentialmarket does not form a homogenous group and adds to the body ofevidence that childhood obesity is spreading across the socioeco-nomic and ethnic groups.Conclusion: Whilst segmentation does not guarantee a positive out-come for stakeholders, the lack of appropriate segmentation is likelyto result in programmes and campaigns that have little impact onthe prevalence of childhood obesity. The findings provide baselinedata for back-end segmentation to be conducted, to ensure a ‘con-sumer orientation’ focus to inform specific marketing decisions.Conflict of interest: None.Funding: No funding.T5:PO.13Socioeconomic differences in weight-controlbehaviors among a population-representative groupof mid-aged adultsSiu J, Giskes K and Turrell GSchool of Public Health and Institute of Health and BiomedicalInnovation, Queensland University of Technology, Brisbane,Queensland, AustraliaIntroduction: It has been well documented that socioeconomically-disadvantaged groups are more likely to be overweight/obese thanª 2010 The AuthorsJournal Compilation ª 2010 The International Association for the Study of Obesity. obesity reviews 11 (Suppl. 1) (2010) 1–472obesity reviews Posters: Public Health and Policy 445____________________________________________________________________________________

Nutrition knowledge in adolescents: perception of parents and peers behavior and stimulus

It is well known the influence that parents and peers have in children and adolescent choices and behaviors, including eating habits and physical activity practice. No work has been done yet about parents and peers influence in nutrition knowledge.
This work aims to study the relation between adolescents’ perception of parents and peers food habits, physical activity practice, stimulus to the adolescent to follow a healthy diet and be physically active and adolescents Nutritional Knowledge.
Methods: A translated and validated version of the Nutritional Knowledge Questionnaire (Parmenter and Wardle, 1999) was used with another questionnaire about adolescents’ perception of parents and peers behavior and stimulus. 
Results: Data from a 653 male and female sample, mean age 15,9 years (SD=2,10) show that Nutrition Knowledge is related to the perception adolescents have of their fathers’ physical activity level (p<0,05), and of their mothers (p<0,05) and peers (p<0,01) healthy eating habits. No statistical significance was found to the relation between nutrition knowledge and all other adolescent perceptions.
Conclusions: These results suggest that beside there is a relation of Nutrition Knowledge and parents and peers perceived habits, the major role must be in schools. Showing that school based and adolescent focused interventions must be planned to improve nutrition knowledge

NUTRITION KNOWLEDGE IN ADOLESCENTS PERCEPTION OF PARENTS AND PEERS BEHAVIOR AND STIMULUSI. Introduction• Parents and peers have a strong influence in childrenand adolescent choices and behaviors, including eatinghabits and physical activity practice (Contento et al.2006; Boutelle et al, 2007; Vagstrand et al, 2009;Beydoun e Wang, 2009).• No work has been done yet about parents and peersinfluence in nutrition knowledge.• 653 volunteer adolescents from North Portugal wererecruited in 3 junior high schools• A translated and validated version of the NutritionalKnowledge Questionnaire; Sections 1, 2 and 3 wasused to access adolescents Nutritional Knowledge(Parmenter and Wardle, 1999)• Questionnaire specially design for this study aboutadolescents’ perception of parents and peers behaviorin relation to a healthy diet and physical activity.Perception about parents and peers stimulus to theadolescents physical activity and healthy eating wasalso evaluated.• Data were analyzed using Kruskal-Wallis Test, SPSSvs. 18.0.III. MethodsFunding: Portuguese Science and Technology Foundation, Project SFRH/PROTEC/49529/2009II. AimIV. Results• To study the relation between adolescents’ perceptionof parents and peers food habits, physical activitypractice, stimulus to the adolescent follow a healthy dietand be physically active and adolescents NutritionalKnowledge.Ferro-Lebres V1,2, Ribeiro JC1, Moreira P1,3, Gonçalves da Silva G1, Aires L11 Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Portugal 2 Superior Health School, Polytechnic Institute of Braganza, Portugal3 Faculty of Nutrition and Food Science, University of Porto, PortugalE-mail address: vferrolebres@gmail.comLEGEND:   *P<0,05; ***P<0,01 V. Conclusions• The perception adolescents have about their parents andpeers stimulus to a healthy eating or physically activelifestyle are not related with their nutritional knowledge.These results are in accordance to other studies thatconclude that adolescents exercised considerableautonomy over much of their food choice (Basset et al,2008; Fitzgerald et al, 2010) and possibly nutritionalknowledge.• Adolescents that perceive that their mothers, but notfathers, have a healthy eating have greater nutritionalknowledge. This may be explained by a greater attention tochildren eating behavior, since childhood, from the mothersto their children, transmitting their own knowledge. Previousstudies shown that there was a relation between mothers’,but not fathers’, and children eating behavior and possiblynutritional knowledge. (Vagstrand et al, 2009; Beydoun eWang, 2009, Boutelle et al, 2007)•Adolescents with greater nutrition knowledge perceive theirpeers eating habits as not so healthy, suggesting that thereare more aware of their friends diet errors.•These results show the importance of planning interventionactions with adolescents, since there is no associationbetween their perception of parents and peers behavior andstimulus to their healthy eating or physical activity practiceand Nutritional Knowledge.• The mean (SD) age was 15,9 years (SD=2,10) years.VI. ReferencesFigure 1. Adolescent Nutrition Knowledge Questionnaire Scoreand Perception of StimulusFigure 2. Adolescent Nutrition Knowledge Questionnaire Scoreand Perception of Behavior* ***• Bassett, R; Chapmanb, GH; Beagan, BL. Autonomy and control: The co-construction of adolescent food choice. Appetite 2008; 50:325-332• Beydoun, MA; Wang, Y. Parent–child dietary intake resemblance in the United States: Evidence from a large representative survey. Social Science & Medicine 2009; 68:2137-2144• Boutelle, KN; Birkeland, RW; Hannan, PJ; Story, M; Neumark-Sztainer, D. Associations between Maternal Concern for Healthful Eating and Maternal Eating Behaviors, Home Food Availability, and Adolescent Eating Behaviors. J Nutr EducBehav. 2007;39:248-256• Contento, IR; Williams, SS; Michela, JL; Franklin, AB. Understanding the food choice process of adolescents in the context of family and friends. Journal of Adolescent Health 2006; 38: 575-582• Fitzgerald A, Heary C, Nixon E, Kelly C. Factors influencing the food choices of Irish children and adolescents: a qualitative investigation. Health Promot Int. 2010 Apr 10. [Epub ahead of print]• Parmenter and Wardle. Development of a Nutrition Knowledge Questionnaire. European Journal of Clinical Nutrition1999; 53:298-308• Vagstrand, K; Linne, Y; Karlsson, J; Elfhag, K; Lindroos, AK. Correlates of soft drink and fruit juice consumption among Swedish adolescents.• There was no difference in adolescent nutrition knowledgescore between groups or levels of perceived stimulus.• Adolescents who perceive their fathers as very physicallyactive have significantly higher score for NutritionKnowledge (p<0,05).• Perception of a healthier mothers diet is associated withsignificantly higher score for Nutrition Knowledge (p<0,05).• Adolescents Nutrition Knowledge Score of those whoperceive peers have a less healthier diet is significantlyhigher than other levels of perception(p<0,01).• No significant difference was found in adolescentsnutrition knowledge score between all other groups ofperceptions.050100150200250300350very muchmore or lesslitllenot at allvery muchmore or lesslitllenot at allvery muchmore or lesslitllenot at allvery muchmore or lesslitllenot at allvery muchmore or lesslitllenot at allvery muchmore or lesslitllenot at allFather - Physical ActivityFather - Healthy EatingMother - Physical ActivityMother - Healthy EatingPeers - Physical ActivityPeers  - Healthy EatingPerception of stimulus050100150200250300350very muchmore or lesslitllenot at allvery muchmore or lesslitllenot at allvery muchmore or lesslitllenot at allvery muchmore or lesslitllenot at allvery muchmore or lesslitllenot at allvery muchmore or lesslitllenot at allFather - Physical ActivityFather - Healthy EatingMother - Physical ActivityMother - Healthy EatingPeers - Physical ActivityPeers  - Healthy EatingPerception of behaviorArbitrary UnitsArbitrary Units

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Nutrition knowledge in adolescents: perception of parents and peers behavior and stimulus

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