Lee Kayoung, Valeria Benavides, Kochman Colleen, Lenders Carine M
Department of Pediatrics, Harvard University School of Medicine, Boston, Massachusetts, USA.
J Adolesc Health. 2006 Sep;39(3):346-52. doi: 10.1016/j.jadohealth.2005.12.016. Epub 2006 Jul 10.
To evaluate the validity of self-reported height, weight, and sexual maturation ratings among overweight children and adolescents.
This cross-sectional study included 77 overweight children and adolescents (39 girls, 38 boys) aged 8-18 years, with a mean body mass index (BMI) of 35.2 +/- 8.9 kg/m2 who visited the Optimal Weight for Life program at Boston Children's Hospital for weight management over a period of six months in 1999. Each patient's weight, height, and sexual maturation ratings were self-reported and measured.
The intra-class correlation coefficients between measured and self-reported weights, heights, and BMI values ranged from .64 to .95 among boys, and from .49 to .84 among girls. The kappa statistics between measured and self-assessed Tanner stage ratings ranged from .21 to .50. The percentages of agreement for breast development and pubic hair ratings among girls were 37.8% and 61.1%, respectively. The percentages of agreement for pubic hair and genitalia ratings among boys were 51.7% and 40.0%, respectively. The self-assessed ratings by boys for pubic hair and genitalia were less likely to be correct with increased measured weight and height (p < .05). Boys aged 15 years or older were more likely to underestimate their pubic hair or genitalia stages than those younger than 15 years of age (p < .05).
Among overweight children and adolescents aged 8-18 years, this pilot study suggests that self-reports of height, weight, and Tanner stages are not valid proxy measures for a physician's assessment.
评估超重儿童及青少年自我报告的身高、体重和性成熟评级的有效性。
这项横断面研究纳入了77名8至18岁的超重儿童及青少年（39名女孩，38名男孩），他们于1999年在波士顿儿童医院的“健康体重生活”项目中接受了为期六个月的体重管理，平均体重指数（BMI）为35.2±8.9kg/m²。每位患者的体重、身高和性成熟评级均通过自我报告及测量获得。
男孩中，测量值与自我报告的体重、身高及BMI值之间的组内相关系数在0.64至0.95之间，女孩则在0.49至0.84之间。测量值与自我评估的坦纳分期评级之间的kappa统计量在0.21至0.50之间。女孩中乳房发育和阴毛评级的一致率分别为37.8%和61.1%。男孩中阴毛和生殖器评级的一致率分别为51.7%和40.0%。随着测量的体重和身高增加，男孩对阴毛和生殖器的自我评估评级更可能不准确（p<0.05）。15岁及以上的男孩比15岁以下的男孩更有可能低估自己的阴毛或生殖器分期（p<0.05）。
在8至18岁的超重儿童及青少年中，这项初步研究表明，身高、体重和坦纳分期的自我报告并非医生评估的有效替代指标。
