Modi Avani C, Zeller Meg H
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.
Obesity (Silver Spring). 2008 Dec;16(12):2624-33. doi: 10.1038/oby.2008.416. Epub 2008 Oct 2.
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.
本研究的目的是开发并验证一种新的针对肥胖症的、由家长代理的健康相关生活质量（HRQOL）测量工具——“评估他们”。研究参与者包括220名肥胖青少年（年龄中位数 = 11.6岁，68%为女性，53%为非裔美国人，BMI中位数 = 36.7）及其主要照顾者（88%为母亲）。主要照顾者完成了一份人口统计学调查问卷以及两项HRQOL测量工具：“评估他们”（针对肥胖症）和儿童生活质量量表（通用型）。测量了青少年的身高和体重。通过进行因子分析并确定内部一致性系数、重测信度、收敛效度和区分效度、预测效度、对变化的反应性以及最小临床重要差异（MCID）得分，完成了对“评估他们”的心理测量学评估。“评估他们”是一项包含22个条目的测量工具，有六个分量表（即情绪功能、身体功能、被取笑/边缘化、积极社会属性、用餐挑战和学校功能），这些分量表解释了66%的方差。该测量工具还包括一个青少年发育适应模块。“评估他们”的内部一致性系数在0.59至0.91之间，重测信度在0.57至0.80之间。大多数“评估他们”分量表与BMI z分数之间的显著关系证明了其效度。“评估他们”与其他HRQOL测量工具也显示出良好的收敛效度，并且对于接受过减肥手术的青少年，它对与体重减轻相关的变化具有反应性。总体而言，“评估他们”是一种可靠且有效的针对肥胖症的、由家长代理的HRQOL测量工具，可用于临床和研究环境。
