BackgroundEvidence supports the use of group therapy for symptom reduction and improving functioning in people with psychosis. However, research guidelines highlight the importance of establishing the feasibility of interventions. Adherence is an important indicator of feasibility and an essential step in supporting the development of the evidence base for group interventions. This review aims to estimate adherence, and possible barriers and facilitators, to psychotherapeutic groups in people with psychosis.MethodsEmbase, Ovid MEDLINE and PsycINFO databases were searched for cross-referencing terms related to group therapy and psychosis. Studies were assessed against inclusion criteria and methodological quality was evaluated. Data wasextracted from each paper including the average session attendance, demographic, clinical, study and therapy-related characteristics and the impact of these on adherence levels evaluated.ResultsFifty-nine original research papers were included, reporting on 52 independent studies which consisted of 66 therapy groups comprised of 2109 participants. Average adherence was 76.4% (s.d. = 17.4). Adherence was improved by receiving incentives and was higher in participants of older age. Study sample size was inversely associated with adherence levels. Study quality was variable with approximately 61.5% found to be at risk of bias. The results support the feasibility of group therapy and suggest that adherence in people with psychosis is not dissimilar to those for people experiencing common mental health difficulties. These findings, alongside efficacy evidence, support the use of group interventions in people with psychosis but also highlight the need for further high-quality research on the efficacy for these approaches.

中文翻译：

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对精神病团体干预依从性的系统评价：人们参加吗？

背景证据支持使用团体治疗来减轻精神病患者的症状并改善其功能。然而，研究指南强调了确定干预措施可行性的重要性。依从性是可行性的一个重要指标，也是支持开发团体干预证据基础的重要步骤。本综述旨在评估精神病患者对心理治疗组的依从性以及可能的障碍和促进因素。方法Embase、Ovid MEDLINE 和PsycINFO 数据库搜索了与团体治疗和精神病相关的交叉引用术语。根据纳入标准评估研究并评估方法学质量。从每篇论文中提取数据，包括平均会议出席率、人口统计、临床、研究和治疗相关特征以及这些对依从性水平的影响。结果包括 59 篇原始研究论文，报告了 52 项独立研究，其中包括 2109 名参与者的 66 个治疗组。平均依从率为 76.4% (sd= 17.4)。接受激励措施提高了依从性，并且在年龄较大的参与者中依从性更高。研究样本量与依从性水平呈负相关。研究质量参差不齐，大约 61.5% 的人发现存在偏倚风险。结果支持团体治疗的可行性，并表明精神病患者的依从性与经历常见心理健康困难的人的依从性并无不同。这些发现与疗效证据一起支持对精神病患者进行群体干预，但也强调了对这些方法的疗效进行进一步高质量研究的必要性。