Tarif Dana, Heron Jon, Fraser Abigail, Joinson Carol
Department of Population Health Sciences, University of Bristol, Bristol, UK
Department of Population Health Sciences, University of Bristol, Bristol, UK.
BMJ Open. 2025 Aug 4;15(8):e092212. doi: 10.1136/bmjopen-2024-092212.
Early pubertal timing has been linked to heightened body dissatisfaction, but previous studies have focused on girls, with small sample sizes and lacking objective measures of pubertal timing. The objective of this study was to examine the association between pubertal timing (age at peak height velocity [aPHV] and age at menarche [AAM] for girls) and body dissatisfaction and self-image in mid-adolescence (age 14).
Prospective cohort study in the UK.
6644 participants (41% male) from the Avon Longitudinal Study of Parents and Children.
Outcomes were measured using the Satisfaction and Dissatisfaction with Body Parts Scale and Self-Image Profile at age 14. Multivariable regression models were adjusted for socioeconomic status and prepubertal body mass index (BMI).
In boys, later aPHV was associated with higher body dissatisfaction (b=0.13 (95% CI 0.09 to 0.18)). In girls, later aPHV was associated with lower body dissatisfaction, but this was attenuated after adjusting for BMI (b=-0.03 (95% CI -0.07 to 0.01)). A negative association was found between AAM and body dissatisfaction (b=-0.06 (95% CI -0.09 to -0.02)). Later aPHV in girls was associated with increased odds of feeling good-looking (OR=1.09 (95% CI 1.01 to 1.19)) and lower odds of feeling different from others (OR=0.91 (95% CI 0.83 to 1.00)). No associations between aPHV and self-image were found in boys.
These findings highlight the need for targeted interventions for adolescent body dissatisfaction.
青春期发育提前与身体不满情绪加剧有关，但以往研究主要聚焦于女孩，样本量小且缺乏青春期发育时间的客观测量方法。本研究的目的是探讨青春期发育时间（女孩的身高增长高峰期年龄[aPHV]和月经初潮年龄[AAM]）与青春期中期（14岁）的身体不满和自我形象之间的关联。
英国的前瞻性队列研究。
来自埃文亲子纵向研究的6644名参与者（41%为男性）。
在14岁时使用身体部位满意度与不满意度量表和自我形象量表进行测量。多变量回归模型对社会经济地位和青春期前体重指数（BMI）进行了调整。
在男孩中，aPHV较晚与更高的身体不满情绪相关（b = 0.13（95%置信区间0.09至0.18））。在女孩中，aPHV较晚与较低的身体不满情绪相关，但在调整BMI后这种关联减弱（b = -0.03（95%置信区间-0.07至0.01））。发现AAM与身体不满情绪之间存在负相关（b = -0.06（95%置信区间-0.09至-0.02））。女孩中较晚的aPHV与感觉自己好看的几率增加相关（OR = 1.09（95%置信区间1.01至1.19）），与感觉与他人不同的几率降低相关（OR = 0.91（95%置信区间0.83至1.00））。在男孩中未发现aPHV与自我形象之间的关联。
这些发现凸显了针对青少年身体不满情绪进行有针对性干预的必要性。
