General study characteristics.

IntroductionObesity is a complex condition with significant economic implications. Healthcare costs associated with obesity are spread across all categories of health services, including mental health care. However, little evidence is available regarding the magnitude and types of costs associated with mental health care resource use by people with obesity.ObjectivesThis systematic review aimed to synthesise the evidence on the costs of mental health care resource use by people with obesity.MethodsA systematic literature search was conducted in PubMed (Medline), Embase (Ovid), PsycINFO (EBSCO), and Econlit (EBSCO) based on PRISMA guidelines to identify cost-of-illness (COI) studies of obesity published in English since 2016. Peer-reviewed studies estimating obesity-related costs using primary or secondary data in children or adults were included. The COI studies quality tool by Schnitzler et al. was adopted to assess the methodological quality of studies. Data extracted included general study characteristics and costs associated with mental health care. Results were synthesised narratively.ResultsA total of 5,565 records were identified post-duplication removal. Following selection, 33 COI studies were included, which mentioned mental health care costs; fifteen considered the monetary value of mental health care costs as separate costs in their analyses. The proportion of total annual healthcare costs attributable to mental health care ranged between 0.70% and 25.10%.DiscussionOur findings suggest that people with obesity incur substantial costs related to the use of mental health care, yet less than half of the included COI studies reported mental health care costs separately from total healthcare costs attributable to obesity. This highlights the importance of greater transparency and granularity when reporting costs. Furthermore, it is imperative to shed more light on the economic impact of co-morbid obesity and mental health. This research is essential for facilitating effective resource allocation and addressing the healthcare needs of this population.引言：肥胖是一种复杂的病症，兼具显著的经济学影响。与肥胖相关的医疗成本覆盖所有类别卫生服务，其中也包括精神卫生保健（mental health care）服务。然而，目前针对肥胖人群使用精神卫生保健资源所产生的成本规模与成本类型，相关实证证据仍较为匮乏。 研究目标：本系统综述旨在整合关于肥胖人群使用精神卫生保健资源所产生成本的相关实证证据。 研究方法：本研究基于PRISMA指南，在PubMed(Medline)、Embase(Ovid)、PsycINFO(EBSCO)及Econlit(EBSCO)数据库中开展系统文献检索，以识别2016年以来发表的英文肥胖相关疾病成本法（cost-of-illness, COI）研究。纳入采用原始数据或二手数据估算儿童或成人肥胖相关成本的同行评议研究。采用施尼茨勒（Schnitzler）等开发的疾病成本研究质量评估工具，对纳入研究的方法学质量进行评价。提取的数据包括研究的一般特征以及与精神卫生保健相关的成本。研究结果采用叙述性综合方法进行整合。 研究结果：去重后共检索到5565条文献记录。经过筛选，最终纳入33项提及精神卫生保健成本的疾病成本法（COI）研究；其中15项研究在分析中将精神卫生保健成本的货币价值作为独立成本进行核算。肥胖人群的精神卫生保健成本占其年度总医疗成本的比例介于0.70%至25.10%之间。 讨论：本研究结果表明，肥胖人群因使用精神卫生保健服务需承担高额成本，但纳入的疾病成本法研究中，仅有不到半数将精神卫生保健成本与肥胖相关总医疗成本分开报告。这凸显了在报告成本数据时提升透明度与细化程度的重要性。此外，亟需进一步阐明肥胖与精神疾病共病所带来的经济学影响。本研究对于优化资源合理配置、满足该人群的卫生保健需求具有重要意义。