PDF(Pubmed)
Abstract：
To examine if sibling absence is associated with higher BMI and to identify potential lifestyle factors underlying this effect; to determine if sibling effects on BMI persist into adulthood.
We used data from all five waves of the National Longitudinal Study of Adolescent to Adult Health to study the sibling factors and BMI of 3,563 participants who were in grades 7-12 at first wave (1994-95). These participants were measured again in the second wave (1996), the third wave (2001-2002), the fourth wave (2008-2009), and most recently, the fifth wave (2016-2018). We identified categories of siblings, comparing the BMI of those without siblings either to birth order or sibship size. BMI was calculated based on direct measurements of height and weight; underlying mechanisms were self-reported.
Participants without siblings had significantly higher BMI than those with siblings, across waves, regardless of sibship size. Those without siblings had consistently higher BMI than middle-born, but not last-born participants. Adolescents without siblings reported eating fast food more frequently and spending more screen time.
Sibling absence is associated with higher BMI in adolescence and this difference persists into adulthood.
We used data from all five waves of the National Longitudinal Study of Adolescent to Adult Health to study the sibling factors and BMI of 3,563 participants who were in grades 7-12 at first wave (1994-95). These participants were measured again in the second wave (1996), the third wave (2001-2002), the fourth wave (2008-2009), and most recently, the fifth wave (2016-2018). We identified categories of siblings, comparing the BMI of those without siblings either to birth order or sibship size. BMI was calculated based on direct measurements of height and weight; underlying mechanisms were self-reported.
Participants without siblings had significantly higher BMI than those with siblings, across waves, regardless of sibship size. Those without siblings had consistently higher BMI than middle-born, but not last-born participants. Adolescents without siblings reported eating fast food more frequently and spending more screen time.
Sibling absence is associated with higher BMI in adolescence and this difference persists into adulthood.
摘要：
检查兄弟姐妹缺席是否与较高的BMI相关，并确定潜在的生活方式因素；确定兄弟姐妹对BMI的影响是否持续到成年。
我们使用了来自全国青少年到成人健康纵向研究的所有五波数据，研究了在第一波（1994-95）中7-12年级的3,563名参与者的兄弟姐妹因素和BMI。这些参与者在第二波(1996年)中再次被测量，第三次浪潮(2001-2002)，第四波(2008-2009)最近，第五波（2016-2018）。我们确定了兄弟姐妹的类别，将没有兄弟姐妹的人的BMI与出生顺序或兄弟姐妹的大小进行比较。BMI是根据身高和体重的直接测量计算的；潜在机制是自我报告的。
没有兄弟姐妹的参与者的BMI明显高于有兄弟姐妹的参与者，跨越波浪，无论同胞大小。那些没有兄弟姐妹的人的BMI一直高于中间出生的人，但不是最后出生的参与者。没有兄弟姐妹的青少年报告说，他们更频繁地吃快餐，花费更多的屏幕时间。
兄弟姐妹的缺失与青春期的BMI较高有关，这种差异持续到成年期。
我们使用了来自全国青少年到成人健康纵向研究的所有五波数据，研究了在第一波（1994-95）中7-12年级的3,563名参与者的兄弟姐妹因素和BMI。这些参与者在第二波(1996年)中再次被测量，第三次浪潮(2001-2002)，第四波(2008-2009)最近，第五波（2016-2018）。我们确定了兄弟姐妹的类别，将没有兄弟姐妹的人的BMI与出生顺序或兄弟姐妹的大小进行比较。BMI是根据身高和体重的直接测量计算的；潜在机制是自我报告的。
没有兄弟姐妹的参与者的BMI明显高于有兄弟姐妹的参与者，跨越波浪，无论同胞大小。那些没有兄弟姐妹的人的BMI一直高于中间出生的人，但不是最后出生的参与者。没有兄弟姐妹的青少年报告说，他们更频繁地吃快餐，花费更多的屏幕时间。
兄弟姐妹的缺失与青春期的BMI较高有关，这种差异持续到成年期。
