Marques-Vidal Pedro, Ferreira Raquel, Oliveira João Miguel, Paccaud Fred
Cardiomet, 21 rue du Bugnon, 1005 Lausanne, Switzerland.
Clin Nutr. 2008 Aug;27(4):531-6. doi: 10.1016/j.clnu.2008.04.002. Epub 2008 May 23.
BACKGROUND & AIMS: There is little information regarding the prevalence of thinness in European adolescents. This was assessed in a convenience sample of children and adolescents from the Lisbon area (Portugal).
Cross-sectional study including 2494 boys and 2519 girls aged 10-18 years. Body mass index (BMI), waist and hip were measured using standardized methods; thinness was defined using international criteria. Body fat was assessed by bioelectrical impedance.
In girls, prevalence of thinness, overweight and obesity were 5.6%, 19.7% and 4.7%, respectively, whereas the corresponding numbers in boys were 3.9%, 17.4% and 5.3%. Prevalence of thinness increased whereas obesity decreased with age: from 1.5% to 7.6% for thinness and from 9.2% to 3.8% for obesity in girls aged 10 and 18, respectively. In boys, the corresponding trends were from 0% to 7.3% for thinness and from 10.6% to 3% for obesity. After adjusting for age, differences were found between BMI groups for weight, body fat percentage, fat mass, lean mass, waist and hip, while no differences regarding height were found between thin and normal weight participants.
The prevalence of thinness is more frequent than obesity after age 14 in girls and 16 years in boys. Thinness is associated with a decreased body weight and body fat, whereas no consistent effect on height was noted.
关于欧洲青少年消瘦患病率的信息较少。本研究对来自里斯本地区（葡萄牙）的儿童和青少年便利样本进行了评估。
横断面研究纳入了2494名10 - 18岁男孩和2519名10 - 18岁女孩。使用标准化方法测量体重指数（BMI）、腰围和臀围；采用国际标准定义消瘦。通过生物电阻抗评估体脂。
女孩中消瘦、超重和肥胖的患病率分别为5.6%、19.7%和4.7%，而男孩中的相应数字分别为3.9%、17.4%和5.3%。消瘦患病率随年龄增加而肥胖患病率随年龄降低：10岁和18岁女孩中，消瘦患病率分别从1.5%升至7.6%，肥胖患病率从9.2%降至3.8%。在男孩中，相应趋势为消瘦患病率从0%升至7.3%，肥胖患病率从10.6%降至3%。调整年龄后，BMI组在体重、体脂百分比、脂肪量、去脂体重、腰围和臀围方面存在差异，而消瘦和正常体重参与者之间在身高方面未发现差异。
女孩在14岁后、男孩在16岁后消瘦患病率高于肥胖患病率。消瘦与体重和体脂减少相关，而对身高未发现一致影响。
