Despite increasing awareness of high rates of physical illness and poor lifestyle behaviours among patients with a history of repeated deliberate self-harm (DSH), there is little research on specific lifestyle factors that are potentially problematic for this group. This paper aims to explore the relationship between lifetime repeated DSH and certain lifestyle factors, including balanced meals, eating breakfast, consumption of ‘junk’ food, weight, exercise, substance/alcohol use, smoking and social support, in a cohort of patients who presented to the Emergency Department (ED) with suicidal ideation or DSH. From 2007 to 2016, data from lifestyle and mental health measures were collected from 448 attenders at an outpatient clinic for DSH or suicidal ideation following ED presentation. Lifestyle behaviours (Fantastic Lifestyle Checklist) and mental health (Depression and Anxiety Stress Scale), clinical diagnosis and number of previous DSH episodes were measured on arrival. The associations between lifestyle variables and the number of lifetime DSH episodes were examined. Sex, age, depression symptoms, poor diet, and smoking were all associated with a higher average number of deliberate self-harm episodes across the lifespan. There were non-significant positive trends for the other poor lifestyle behaviours. There was no association between DSH episodes and diagnosis of depression or anxiety disorder. In a multiple linear regression model, the only factors that remained significant were age, smoking and eating balanced meals, however, the relationship between smoking and lifetime DSH was moderated by more immediate DSH behaviours. In this sample of patients referred to a service following presentation to the ED with acute mental health concerns, balanced meals and smoking were the lifestyle behaviours that were found to have the strongest independent association with repeated DSH across the lifespan.

中文翻译：

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在考虑生活习惯与故意自残之间的联系时，我们是否应该更加关注饮食？

尽管人们越来越意识到有反复故意自残 (DSH) 病史的患者身体疾病发生率高和不良生活方式行为，但针对该群体可能存在问题的特定生活方式因素的研究却很少。本文旨在探讨终生重复 DSH 与某些生活方式因素之间的关系，包括均衡膳食、吃早餐、“垃圾”食品的摄入、体重、运动、物质/酒精使用、吸烟和社会支持。因自杀意念或 DSH 被送往急诊室 (ED)。从 2007 年到 2016 年，我们收集了 448 名门诊就诊者的生活方式和心理健康测量数据，以了解 DSH 或急诊科就诊后的自杀意念。抵达时测量了生活方式行为（梦幻般的生活方式清单）和心理健康（抑郁和焦虑压力量表）、临床诊断和既往 DSH 发作次数。研究了生活方式变量与终生 DSH 发作次数之间的关联。性别、年龄、抑郁症状、不良饮食和吸烟都与一生中故意自残事件平均次数较高有关。其他不良生活方式行为没有显着的积极趋势。DSH 发作与抑郁症或焦虑症的诊断之间没有关联。在多元线性回归模型中，唯一仍然显着的因素是年龄、吸烟和均衡膳食，然而，吸烟与终生 DSH 之间的关系受到更直接的 DSH 行为的调节。在这个因严重心理健康问题而向急诊室报告后转诊的患者样本中，均衡膳食和吸烟是被发现与整个生命周期中重复 DSH 具有最强独立关联的生活方式行为。