PMID- 18833211 OWN - NLM STAT- MEDLINE DCOM- 20090403 LR - 20191210 IS - 1930-7381 (Print) IS - 1930-739X (Electronic) IS - 1930-7381 (Linking) VI - 16 IP - 12 DP - 2008 Dec TI - Validation of a parent-proxy, obesity-specific quality-of-life measure: sizing them up. PG - 2624-33 LID - 10.1038/oby.2008.416 [doi] AB - The aims of the present study were to develop and validate a new obesity-specific, parent-proxy measure of health-related quality of life (HRQOL), Sizing Them Up. Participants included 220 obese youth (M(age) = 11.6 years, 68% female, 53% African American, M(BMI) = 36.7) and their primary caregivers (88% mothers). Primary caregivers completed a demographics questionnaire and two HRQOL measures: Sizing Them Up (obesity-specific) and PedsQL (generic). Youth height and weight were measured. Psychometric evaluation of Sizing Them Up was completed by conducting a factor analysis and determining internal consistency coefficients, test-retest reliability, convergent and discriminant validity, predictive validity, responsiveness to change, and minimal clinically important difference (MCID) scores. Sizing Them Up is a 22-item measure with six scales (i.e., Emotional Functioning, Physical Functioning, Teasing/Marginalization, Positive Social Attributes, Mealtime Challenges, and School Functioning) that account for 66% of the variance. The measure also includes an Adolescent Developmental Adaptation module. Sizing Them Up had internal consistency coefficients ranging from 0.59 to 0.91 and test-retest reliabilities ranging from 0.57 to 0.80. Validity was demonstrated by significant relations between a majority of Sizing Them Up scales and BMI z-scores. Sizing Them Up also demonstrated good convergent validity with other HRQOL measures and responsiveness to change related to weight loss for adolescents who had undergone bariatric surgery. Overall, Sizing Them Up is a reliable and valid parent-proxy measure of obesity-specific HRQOL that can be used in both clinical and research settings. FAU - Modi, Avani C AU - Modi AC AD - Department of Pediatrics, Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA. avani.modi@cchmc.org FAU - Zeller, Meg H AU - Zeller MH LA - eng GR - K23 DK060031/DK/NIDDK NIH HHS/United States GR - T32 DK063929/DK/NIDDK NIH HHS/United States GR - K23-DK60031/DK/NIDDK NIH HHS/United States GR - M01 RR 08084/RR/NCRR NIH HHS/United States GR - M01 RR008084/RR/NCRR NIH HHS/United States GR - R03DK0788901/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Validation Study DEP - 20081002 PL - United States TA - Obesity (Silver Spring) JT - Obesity (Silver Spring, Md.) JID - 101264860 SB - IM MH - Adolescent MH - Adult MH - Age Factors MH - Aged MH - Bariatric Surgery MH - Child MH - Factor Analysis, Statistical MH - Female MH - Humans MH - Male MH - Obesity/ethnology/*psychology/surgery MH - Parents MH - Proxy MH - *Quality of Life MH - Reproducibility of Results MH - Self Concept MH - Sex Factors MH - *Surveys and Questionnaires/standards PMC - PMC3490405 MID - NIHMS411662 COIS- DISCLOSURE The authors declared no conflict of interest. EDAT- 2008/10/04 09:00 MHDA- 2009/04/04 09:00 PMCR- 2012/11/06 CRDT- 2008/10/04 09:00 PHST- 2008/10/04 09:00 [pubmed] PHST- 2009/04/04 09:00 [medline] PHST- 2008/10/04 09:00 [entrez] PHST- 2012/11/06 00:00 [pmc-release] AID - oby2008416 [pii] AID - 10.1038/oby.2008.416 [doi] PST - ppublish SO - Obesity (Silver Spring). 2008 Dec;16(12):2624-33. doi: 10.1038/oby.2008.416. Epub 2008 Oct 2.