There is a dearth of research into mental disorders amongst Aboriginal and Torres Strait Islander peoples (herein First Australians) and especially into eating disorders. In order to understand the healthcare needs of this population, accurate prevalence data is needed. This study aimed to estimate the prevalence of eating disorders amongst First Australians at the diagnostic threshold level and to compare clinical features and health related quality of life (HRQoL) in First and other Australians with and without an eating disorder. Data were sourced from the general population 2015 and 2016 Health Omnibus Surveys in South Australia. Trained interviewers conducted via face to face interviews with 6052 people over 15 years old. Eating disorder questions were based on the Eating Disorder Examination and Health Related Quality of Life (HRQoL) measured with the Short-Form 12 v1. The response and participation rates were over 50% and 68% respectively in both surveys. Body Mass Index (BMI) and First Australian status were derived from interview questions. Data were weighted to population norms and analysed using statistical methods for complex surveys. Twenty-five of 92 (27%) First Australian survey respondents had an eating disorder (majority Other or Unspecified Feeding or Eating Disorder characterised by recurrent binge eating). This was significantly more than the prevalence of other Australians with an eating disorder group (p = .04). First Australians with an eating disorder had higher levels of weight/shape overvaluation than all other groups. They were also younger and had poorer Mental HRQoL (MHRQoL) than other Australians without an eating disorder. On logistic regression, First Australian status was not independently associated with having an eating disorder, however, age, Body Mass Index (BMI) and MHRQoL emerged as significant independent variables for the increased rate of eating disorders in First Australians. Eating disorders were very common in First Australians and were associated with high levels of overvaluation, binge eating frequency and poor MHRQoL. High levels of overvaluation were unexpected. The implications of these findings include an urgent need for further research, and the development of culturally appropriate assessment instruments and treatments for First Australians with eating disorders.

中文翻译：

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原住民和托雷斯海峡岛民（第一澳大利亚人）中 DSM-5 诊断阈值饮食失调的患病率和特征。


对于原住民和托雷斯海峡岛民（这里指第一澳大利亚人）的精神障碍，特别是饮食失调的研究还很缺乏。为了了解该人群的医疗保健需求，需要准确的患病率数据。本研究旨在估计第一澳大利亚人在诊断阈值水平上饮食失调的患病率，并比较第一和其他有或没有饮食失调的澳大利亚人的临床特征和健康相关生活质量（HRQoL）。数据来源于 2015 年和 2016 年南澳大利亚普通人群健康综合调查。训练有素的采访员对 6052 名 15 岁以上的人进行了面对面采访。饮食失调问题基于饮食失调检查和使用简式 12 v1 测量的健康相关生活质量 (HRQoL)。两项调查的回应率和参与率分别超过 50% 和 68%。身体质量指数（BMI）和澳大利亚第一身份是从面试问题中得出的。数据根据人口标准进行加权，并使用复杂调查的统计方法进行分析。首次澳大利亚调查的 92 名受访者中，有 25 名 (27%) 患有饮食失调症（大多数其他或未明确的进食或饮食失调症，其特征是反复暴食）。这明显高于其他饮食失调群体的澳大利亚人的患病率 (p = .04)。首先患有饮食失调的澳大利亚人比所有其他群体的体重/体形高估程度更高。与其他没有饮食失调的澳大利亚人相比，他们更年轻，心理 HRQoL (MHRQoL) 也更差。 在逻辑回归中，第一澳大利亚人的身份与饮食失调并不独立相关，然而，年龄、体重指数（BMI）和 MHRQoL 成为第一澳大利亚人饮食失调率增加的重要自变量。饮食失调在第一批澳大利亚人中非常常见，并且与高度高估、暴食频率和较差的 MHRQoL 相关。严重高估是出乎意料的。这些发现的意义包括迫切需要进一步研究，以及为患有饮食失调的第一批澳大利亚人开发适合文化的评估工具和治疗方法。