Child Health, University of Aberdeen, , Aberdeen, UK.
Arch Dis Child. 2014 Jan;99(1):58-61. doi: 10.1136/archdischild-2013-304423. Epub 2013 Nov 6.
The burden of childhood thinness in the UK is poorly understood. The aim of this study was to describe the prevalence and year-on-year trends of childhood thinness in a population born between 1970 and 2006 in North East Scotland.
Measurements were routinely collected by school nurses as part of school medical entry. Trends in International Obesity Task Force thinness grades 1, that is, body mass index (BMI) corresponding to adult BMI <18.5 kg/m(2) but ≥ 17 kg/m(2) or grade ≥ 2, that is, corresponding to adult BMI <17 kg/m(2) were analysed over time by sex and socioeconomic deprivation quintile.
Data were obtained for 194 391 children, 52% boys, mean age 5.6 years (SD 0.8). The prevalence of thinness grade 1 was 6.5% (95% CI 5.9% to 7.2%) and 4.8% (4.2% to 5.5%) for those born in 1970 and 2006, respectively, but between these years was variable with the fluctuations being greater for boys than girls. The prevalence of thinness grade ≥ 2 fell for those born between 1974 and 1985 from 6.1% (5.5% to 6.8%) to 1.3%, (1.0% to 1.6%) and remained relatively stable thereafter in boys and girls. Thinness grade ≥ 2 was initially less prevalent in more affluent communities, but for those born in 1990 and afterwards, prevalence was equal across deprivation quintiles. In contrast, there was no interaction between deprivation quintile and year of birth for thinness grade 1.
Thinness has become less common in this population. While thinness was initially more prevalent among deprived communities, this association is no longer apparent.
英国对儿童消瘦的负担认识不足。本研究旨在描述 1970 年至 2006 年期间在苏格兰东北部出生的人群中儿童消瘦的流行率和逐年趋势。
学校护士作为学校入学体检的一部分常规收集测量数据。国际肥胖特别工作组消瘦等级 1（即成人 BMI<18.5kg/m2 但≥17kg/m2 或等级≥2，即成人 BMI<17kg/m2）的趋势按性别和社会经济剥夺五分位数进行了分析。
共获得 194391 名儿童的数据，其中 52%为男孩，平均年龄为 5.6 岁（SD 0.8）。消瘦等级 1 的患病率分别为 6.5%（95%CI 5.9%至 7.2%）和 4.8%（4.2%至 5.5%），分别为 1970 年和 2006 年出生的儿童，但在这几年之间波动较大，男孩的波动大于女孩。1974 年至 1985 年期间出生的男孩和女孩消瘦等级≥2的患病率从 6.1%（5.5%至 6.8%）降至 1.3%（1.0%至 1.6%），此后相对稳定。消瘦等级≥2在较富裕社区的患病率最初较低，但对于 1990 年及以后出生的儿童，各贫困五分位数的患病率相等。相比之下，消瘦等级 1与出生年份之间没有贫困五分位数的相互作用。
在这一人群中，消瘦已变得不那么常见。虽然消瘦在贫困社区最初更为普遍，但这种关联已不再明显。
