Behavioural Science Institute, Radboud University Nijmegen, Nijmegen, The Netherlands.
J Adolesc Health. 2010 Nov;47(5):456-62. doi: 10.1016/j.jadohealth.2010.03.006. Epub 2010 May 10.
Although some studies among adolescent girls found that friends within friendship groups were rather similar on dieting and/or body image constructs, these studies were limited by their cross-sectional designs. The current prospective study is the first to examine friendship group influences on eating disorder risk factors, including body dissatisfaction, weight concerns, dietary restraint, and dieting in adolescent girls.
Design was a two-wave prospective study with 1-year interval. Of 863 girls (mean age = 13.8, SD = .7), 344 were members of one of the 103 reciprocal friendship groups identified using social network analysis.
Reciprocal friends were similar with respect to body image and dieting constructs. However, initial friendship group levels of body dissatisfaction, weight concerns, dietary restraint, and dieting did not predict individual body image and dieting variables 1 year later.
The current findings attest to the significance of reciprocal friendship group correlates of eating disorder risk factors, but suggest that during early-to-mid-adolescence, levels of body image concerns and dieting within reciprocal friendship groups do not influence adolescents' own body image concerns and dieting over 1 year of time.
尽管一些针对少女的研究发现，在友谊群体中，朋友之间在节食和/或身体意象结构上相当相似，但这些研究受到其横断面设计的限制。本前瞻性研究首次考察了友谊群体对饮食失调风险因素的影响，包括身体不满、体重担忧、饮食限制和节食在少女中的作用。
设计为具有 1 年间隔的两波前瞻性研究。在 863 名女孩（平均年龄=13.8，SD=.7）中，344 名是使用社交网络分析确定的 103 个互惠友谊群体之一的成员。
互惠朋友在身体意象和节食结构方面相似。然而，最初的友谊群体的身体不满、体重担忧、饮食限制和节食水平并没有预测 1 年后个体的身体意象和节食变量。
目前的研究结果证明了互惠友谊群体与饮食失调风险因素的相关性的重要性，但表明在青少年早期到中期，互惠友谊群体中身体意象问题和节食水平在 1 年内不会影响青少年自身的身体意象问题和节食。
