Identifying the 'red flags' for unhealthy weight control among adolescents: findings from an item response theory analysis of a national survey.

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dc.contributor.author Utter, Jennifer en
dc.contributor.author Denny, Simon en
dc.contributor.author Robinson, Elizabeth en
dc.contributor.author Ameratunga, Shanthi en
dc.contributor.author Crengle, Sue en
dc.date.accessioned 2018-10-14T23:52:21Z en
dc.date.issued 2012-01 en
dc.identifier.citation International Journal of Behavioral Nutrition and Physical Activity 9:99-undefined 21 Aug 2012 en
dc.identifier.issn 1479-5868 en
dc.identifier.uri http://hdl.handle.net/2292/41449 en
dc.description.abstract BACKGROUND: Weight control behaviors are common among young people and are associated with poor health outcomes. Yet clinicians rarely ask young people about their weight control; this may be due to uncertainty about which questions to ask, specifically around whether certain weight loss strategies are healthier or unhealthy or about what weight loss behaviors are more likely to lead to adverse outcomes. Thus, the aims of the current study are: to confirm, using item response theory analysis, that the underlying latent constructs of healthy and unhealthy weight control exist; to determine the 'red flag' weight loss behaviors that may discriminate unhealthy from healthy weight loss; to determine the relationships between healthy and unhealthy weight loss and mental health; and to examine how weight control may vary among demographic groups. METHODS: Data were collected as part of a national health and wellbeing survey of secondary school students in New Zealand (n = 9,107) in 2007. Item response theory analyses were conducted to determine the underlying constructs of weight control behaviors and the behaviors that discriminate unhealthy from healthy weight control. RESULTS: The current study confirms that there are two underlying constructs of weight loss behaviors which can be described as healthy and unhealthy weight control. Unhealthy weight control was positively correlated with depressive mood. Fasting and skipping meals for weight loss had the lowest item thresholds on the unhealthy weight control continuum, indicating that they act as 'red flags' and warrant further discussion in routine clinical assessments. CONCLUSIONS: Routine assessments of weight control strategies by clinicians are warranted, particularly for screening for meal skipping and fasting for weight loss as these behaviors appear to 'flag' behaviors that are associated with poor mental wellbeing. en
dc.format.medium Electronic en
dc.language eng en
dc.relation.ispartofseries The International Journal of Behavioral Nutrition and Physical Activity en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri https://creativecommons.org/licenses/by/2.0/ en
dc.subject Humans en
dc.subject Weight Loss en
dc.subject Body Mass Index en
dc.subject Diet en
dc.subject Health Surveys en
dc.subject Questionnaires en
dc.subject Adolescent Behavior en
dc.subject Feeding Behavior en
dc.subject Health Behavior en
dc.subject Students en
dc.subject Adolescent en
dc.subject New Zealand en
dc.subject Female en
dc.subject Male en
dc.title Identifying the 'red flags' for unhealthy weight control among adolescents: findings from an item response theory analysis of a national survey. en
dc.type Journal Article en
dc.identifier.doi 10.1186/1479-5868-9-99 en
pubs.begin-page 99 en
pubs.volume 9 en
dc.rights.holder Copyright: The authors en
dc.identifier.pmid 22909312 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Research Support, Non-U.S. Gov't en
pubs.subtype research-article en
pubs.subtype Journal Article en
pubs.elements-id 360731 en
pubs.org-id Medical and Health Sciences en
pubs.org-id Population Health en
pubs.org-id Epidemiology & Biostatistics en
dc.identifier.eissn 1479-5868 en
pubs.record-created-at-source-date 2012-11-07 en
pubs.dimensions-id 22909312 en


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