Sociodemographic characteristics of participants.

Background
Intimate Partner Violence (IPV) is a significant public health problem often associated with serious mental health and physical health implications. Substance use disorders (SUDs) are one of the most common comorbidities among women with IPV, increasing risk of subsequent IPV.
Methods
The current study examined the feasibility, acceptability, and preliminary effectiveness of a brief computerized intervention to reduce alcohol and drug use among women with IPV. Fifty women with recent IPV and alcohol and drug use risk were recruited from domestic violence shelters and randomized to the experimental computerized intervention or to an attention and time control condition. The primary outcome was percent heavy drinking or drug using days in 3 month increments over the 6 months after leaving the shelter. Receipt of substance use services and IPV severity were evaluated as secondary outcomes.
Results
The computerized intervention was feasible and acceptable, with high (n = 20, 80%) completion rates, engagement with the intervention, and satisfaction scores. As expected in this pilot trial, there were no significant differences between conditions in percent heavy drinking/drug using days or receipt of substance use services and large individual differences in outcomes. For example, receipt of substance use services decreased by a mean of 0.05 times/day from the baseline to the 6-month time period in the control condition (range -1.00 to +0.55) and increased by a mean of 0.06 times/day in the intervention condition (range -0.13 to +0.89). There were large decreases in IPV severity over time in both conditions, but directions of differences favored the control condition for IPV severity.
Conclusion
A computerized intervention to reduce the risk of alcohol/drug use and subsequent IPV is feasible and acceptable among residents of a domestic violence shelter. A fully powered trial is needed to conclusively evaluate outcomes.

背景
亲密伴侣暴力（Intimate Partner Violence, IPV）是一类重要的公共卫生问题，常伴随严重的精神健康与躯体健康损害。物质使用障碍（Substance Use Disorders, SUDs）是受IPV困扰女性最常见的共病之一，会增加后续IPV的发生风险。

方法
本研究评估了一项简短计算机化干预手段在近期遭受IPV且存在酒精、药物使用风险的女性群体中应用的可行性、可接受性及初步有效性。研究从家庭暴力庇护机构招募了50名符合条件的女性，将其随机分配至计算机化干预实验组与关注匹配型时间对照组。本研究的主要结局指标为受试者离开庇护机构后6个月内，以3个月为周期的重度饮酒或药物使用天数占比；次要结局指标为物质使用服务的获取情况与IPV严重程度。

结果
该计算机化干预具备可行性与可接受性，完成率较高（n=20，占比80%），受试者的干预参与度与满意度评分良好。正如这项先导试验的预期，两组在重度饮酒/药物使用天数占比、物质使用服务获取情况上均无显著差异，且受试者间结局存在较大差异。例如，对照组从基线至6个月随访期，日均物质使用服务获取频次平均下降0.05次（变化范围：-1.00至+0.55）；而干预组的日均频次平均上升0.06次（变化范围：-0.13至+0.89）。两组的IPV严重程度均随时间大幅降低，但就IPV严重程度而言，对照组的改善效果更优。

结论
针对家庭暴力庇护机构居民开发的、用于降低酒精/药物使用风险及后续IPV发生风险的计算机化干预手段，具备可行性与可接受性。未来需开展效力充足的大规模临床试验，以对研究结局进行确定性评估。