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首页> 外文期刊>Scandinavian journal of public health >The Danish Youth Cohort: characteristics of participants and non-participants and determinants of attrition.
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The Danish Youth Cohort: characteristics of participants and non-participants and determinants of attrition.

机译：丹麦青年群组：参与者和非参与者的特征以及损耗的决定因素。

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AIMS: The aim of this paper is to describe the design and methods used in the Danish Youth Cohort and to give a description of the study participants with special attention to a comparison between participants and non-participants regarding sociodemographic characteristics. METHODS: A total of 1,945 schools were invited, out of which 506 participated. The participating 7th grades comprised a total of 12,498 responding adolescents. The response rate for the Danish Youth Cohort established in 2005 was 63%. The sample of 12,498 adolescents represents 18.2% of all pupils (n = 68,764) in the 7th grade (mean age: 13.4 years) in Danish schools in 2005. The cohort was followed up in spring 2006 and spring 2007, where the adolescents were in the 8th (mean age: 14.4 years) and 9th (mean age: 15.3 years) grades, respectively. RESULTS: We found that compared with non-participants the participants were significantly more likely to be girls, to be of Danish ethnicity, and to live in one-family houses. Furthermore, participants more often came from families with two or three children, were more likely to have parents with a high occupational status, parents who were married and parents with a higher total income. Loss to follow-up was only associated with adolescents' higher probability of drinking and use of tobacco, and none of the other factors were associated with attrition. CONCLUSIONS: The participants in the Danish Youth Cohort represent a great variety of different groups of socio-demographic factors, although they differ from non-participants as regards a range of socio-demographic factors. This should be taken into account in future analyses.
机译：目的：本文的目的是描述丹麦青年队列中使用的设计和方法，并对研究参与者进行描述，特别注意参与者与非参与者在社会人口统计学特征方面的比较。方法：总共邀请了1,945所学校，其中506所参加了。参与的7年级共有12,498名响应青少年。 2005年建立的丹麦青年队列的回复率为63％。 2005年丹麦学校的7年级（平均年龄：13.4岁）的12498名青少年样本占所有学生的18.2％（n = 68764）。该队列于2006年春季和2007年春季进行了随访。八年级（平均年龄：14.4岁）和九年级（平均年龄：15.3年）。结果：我们发现，与未参加者相比，参加者是女孩，丹麦族裔和独居家庭的可能性要大得多。此外，参加者更多地来自有两个或三个孩子的家庭，他们的父母更有可能具有较高的职业地位，已婚父母和总收入较高的父母。失去随访仅与青少年饮酒和使用烟草的可能性更高有关，其他因素均与损耗无关。结论：丹麦青年队列的参与者代表了许多不同的社会人口统计学因素组，尽管就一系列的社会人口统计学因素而言它们与非参与者不同。在以后的分析中应考虑到这一点。

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