Zarychta Karolina, Mullan Barbara, Kruk Magdalena, Luszczynska Aleksandra
Psychology Department in Wroclaw, SWPS University of Social Sciences and Humanities in Wroclaw, 30b Ostrowskiego Street, PL-53-238, Wroclaw, Poland.
Health Psychology & Behavioural Medicine Research Group, School of Psychology and Speech Pathology, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia.
BMC Psychiatry. 2017 Apr 28;17(1):154. doi: 10.1186/s12888-017-1328-9.
Establishing the sequence in which risk factors for eating disorders (ED) emerge would enable more effective ED prevention. Thus, in our study we investigated reciprocal and indirect associations between three cognitive and behavioral ED determinants (appearance orientation, appearance worries, and dieting) emphasized in the transdiagnostic model of ED.
Data were collected in a non-clinical group of adolescents at Time 1 (T1), and then 2-months (Time 2, T2) and 13-months later (Time 3, T3). Participants (N = 1260) aged 13-19 completed a questionnaire encompassing their nutrition behaviors, beliefs about appearance, health and well-being. Weight and height were measured objectively.
Higher levels of appearance orientation (T1) were associated with higher levels of appearance worries (T2) which in turn predicted dieting (T3). Dieting (T1) predicted higher levels of appearance orientation (T2) which in turn predicted higher levels of appearance worries (T3). Higher levels of appearance worries (T1) were associated with higher levels of appearance orientation (T2) which in turn predicted dieting (T3). Also, higher levels of appearance worries (T1) were associated with dieting (T2), and higher levels of appearance orientation (T3).
The three transdiagnostic model variables formed a vicious cycle. Therefore, higher levels of one of ED determinants (appearance orientation, appearance worries or dieting) increase the likelihood of the elevated levels of two other ED determinants at follow-ups and thus enhances the risk for ED.
确定饮食失调（ED）风险因素出现的顺序将有助于更有效地预防饮食失调。因此，在我们的研究中，我们调查了饮食失调跨诊断模型中强调的三种认知和行为性饮食失调决定因素（外貌取向、外貌担忧和节食）之间的相互关系和间接关联。
在第1时间点（T1）收集了一组非临床青少年的数据，然后在2个月后（第2时间点，T2）和13个月后（第3时间点，T3）再次收集数据。13至19岁的参与者（N = 1260）完成了一份问卷，内容包括他们的营养行为、对外貌、健康和幸福感的看法。客观测量了体重和身高。
较高水平的外貌取向（T1）与较高水平的外貌担忧（T2）相关，而外貌担忧又预测了节食行为（T3）。节食行为（T1）预测了较高水平的外貌取向（T2），而外貌取向又预测了较高水平的外貌担忧（T3）。较高水平的外貌担忧（T1）与较高水平的外貌取向（T2）相关，而外貌取向又预测了节食行为（T3）。此外，较高水平的外貌担忧（T1）与节食行为（T2）以及较高水平的外貌取向（T3）相关。
这三个跨诊断模型变量形成了一个恶性循环。因此，饮食失调决定因素之一（外貌取向、外貌担忧或节食）的较高水平会增加在后续随访中其他两个饮食失调决定因素水平升高的可能性，从而增加饮食失调的风险。
