Longitudinal Associations Between Anhedonia and Body Mass Index Trajectory Groups Among Adolescents
Longitudinal Associations Between Anhedonia and Body Mass Index Trajectory Groups Among Adolescents
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DOI：
10.1016/j.jadohealth.2017.12.022
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发表时间：
2018-07-01
影响因子：
7.6
通讯作者：
Leventhal, Adam M.
中科院分区：
文献类型：
--
作者：
Cho, Junhan;Goldenson, Nicholas I.;Leventhal, Adam M.
目的：尽管有证据表明，快感缺乏--一种对奖励刺激做出反应而体验快乐的能力下降--可能预示着青春期的体重增加，但目前尚不清楚青春期快感缺失的变化是否与身体质量指数(BMI)的变化有关。本研究探讨青春期快感缺乏症的变化与BMI发展轨迹之间的纵向关系。方法：对加利福尼亚州洛杉矶地区10所高中(N=3,396)的学生从9年级到11年级进行跟踪调查，每半年一次收集快感缺乏和BMI的自我报告测量。使用生长混合模型确定了四个BMI轨迹：(1)稳定的正常体重；(2)超重到正常体重(即，降低BMI)；(3)超重到慢性肥胖(增加BMI)；(4)正常体重到超重(增加BMI)。潜伏期生长曲线模拟估计基础水平和快感缺乏症的变化。结果：与稳定的正常BMI轨迹组相比，快感缺乏症斜率每增加1个单位标准差，超重至慢性肥胖组成为成员的几率增加(优势比[OR][95%可信区间{CI}]=1.29[1.09-1.49]，p<；在正常体重到超重组中(OR[95%CI]=1.28[1.04-1.53]，p=.006)，并降低了加入超重到正常体重组的几率(OR[95%CI]=.78[.57-.95]，p=.01)。结论：在高中两年的时间里，快感缺乏的变化率与某些BMI轨迹有关，这些轨迹与较差的代谢健康有关。在青少年肥胖预防中，快感缺乏的增加可能是一个重要的危险因素。(C)2018年青少年健康与医学学会。版权所有。
Purpose: Although evidence suggests that anhedonia-a reduced ability to experience pleasure in response to rewarding stimuli-may predict weight gain during adolescence, it remains unclear whether changes in anhedonia during adolescence are associated with changes in body mass index (BMI). This study examines longitudinal associations between changes in anhedonia and developmental trajectories of BMI during adolescence.Methods: Self-report measures of anhedonia and BMI were collected at five semiannual assessments among students from 10 high schools in Los Angeles, CA, area (N = 3,396) followed up from the 9th grade to the 11th grade. Four BMI trajectories were identified using growth mixture modeling: (1) stable normative weight; (2) overweight to normative weight (i.e., decreasing BMI); (3) overweight to chronically obese (increasing BMI); and (4) normative weight to overweight (increasing BMI). Latent growth curve modeling estimated baseline level and changes in anhedonia. A multinomial logistic regression model tested associations of baseline level and slope of anhedonia with the four BMI trajectory groups.Results: Compared with the stable normative BMI trajectory group, each 1-unit standard deviation increase in anhedonia slope increased the odds of membership in the overweight to chronically obese group (odds ratio [OR] [95% confidence interval {CI}] = 1.29 [1.09-1.49], p < .001) and in the normative weight to overweight group (OR [95% CI] = 1.28 [1.04-1.53], p = .006), and decreased the odds of membership in the overweight to normative weight group (OR [95% CI] = .78 [.57-.95], p = .01).Conclusions: Across a 2-year period of high school, the rate of change in anhedonia is associated with certain BMI trajectories linked with poorer metabolic health. Increasing anhedonia may be an important risk factor to consider in adolescent obesity prevention. (c) 2018 Society for Adolescent Health and Medicine. All rights reserved.