Reduced social competence following severe acquired brain injury (ABI) is well-documented. This pilot study investigated a peer-led group intervention based on the claim that peer models may be a more effective mechanism for behaviour change than clinician-led approaches. Twelve participants with severe ABI were recruited from a post-acute neurorehabilitation setting and randomly assigned to either a peer-led intervention or a staff-led activity group (usual care) (Clinicaltrials.gov: NCT02211339). The groups met twice a week for 8 weeks. A peer was trained separately to facilitate interaction in the intervention group. Training comprised 16 individual sessions over 4 weeks. Group behaviour was measured twice at baseline, after intervention and at maintenance (4 weeks), using the Adapted Measure of Participation in Conversation (MPC) and the Interactional Network Tool (INT), a newly devised measure of group conversational interaction. Outcome measures showed differential sensitivity. The groups did not differ in baseline behaviour. Findings showed a significant improvement in the treated group on the MPC transaction scale post-intervention (p = .02). The intervention group showed more balanced interaction post-intervention on the INT and at follow-up. Findings show preliminary evidence of the advantage for peer-led groups. The INT shows promise as a method to detect a change in group communication behaviour.Trial registration: ClinicalTrials.gov identifier: NCT02211339.

中文翻译：

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衡量成人获得性脑损伤的同伴主导的社会沟通技能干预的结果：一项试点调查

严重获得性脑损伤 (ABI) 后社交能力下降是有据可查的。这项试点研究调查了一项由同伴主导的小组干预，其依据是同伴模型可能是比临床医生主导的方法更有效的行为改变机制。从急性后神经康复环境中招募了 12 名患有严重 ABI 的参与者，并随机分配到同伴主导的干预或工作人员主导的活动组（常规护理）（Clinicaltrials.gov：NCT02211339）。这些小组每周会面两次，持续 8 周。一名同伴单独接受培训，以促进干预组的互动。培训包括 16 个单独的课程，为期 4 周。在基线、干预后和维持（4 周）时测量群体行为两次，使用自适应对话参与量度 (MPC) 和互动网络工具 (INT)，这是一种新设计的群组对话互动量度。结果测量显示不同的敏感性。各组在基线行为方面没有差异。结果表明，干预后治疗组的 MPC 交易量表有显着改善（p = .02）。干预组在干预后的 INT 和随访中表现出更平衡的互动。调查结果显示了同行领导群体优势的初步证据。INT 显示出作为检测群体交流行为变化的方法的前景。试验注册：ClinicalTrials.gov 标识符：NCT02211339。各组在基线行为方面没有差异。结果表明，干预后治疗组的 MPC 交易量表有显着改善（p = .02）。干预组在干预后的 INT 和随访中表现出更平衡的互动。调查结果显示了同行领导群体优势的初步证据。INT 显示出作为检测群体交流行为变化的方法的前景。试验注册：ClinicalTrials.gov 标识符：NCT02211339。各组在基线行为方面没有差异。结果表明，干预后治疗组的 MPC 交易量表有显着改善（p = .02）。干预组在干预后的 INT 和随访中表现出更平衡的互动。调查结果显示了同行领导群体优势的初步证据。INT 显示出作为检测群体交流行为变化的方法的前景。试验注册：ClinicalTrials.gov 标识符：NCT02211339。