A Randomized Intervention in Collision Repair Shops

描述（由申请人提供）：拟议研究的目的是评估随机干预的有效性，旨在减少小型汽车碰撞修理店工人暴露于各种危害（标准工业分类代码7532）。本研究的主要假设是，与最低限度的干预相比，业主和工人实施全面干预后，环境和行政控制以及个人防护设备的可用性和使用将更大，暴露于物理和化学危害的风险将更低。拟议的研究利用业主和工人对商店环境的审计，制定工人/业主的健康和安全目标和行动计划，并定期评估实现这些目标的进展情况。行业代表和社区合作伙伴将提供技术支持，并在研究咨询委员会任职。将采用两组随机对照试验来检验干预的有效性。每组将随机分配50家店铺。干预映射将作为规划模型，社会认知理论将作为行为模型。研究结果将是：(1)车间危险评分在基线和两个随访期间的变化；(2)业主和工人对车间安全和危害识别的知识和信念的变化；(3)定性措施，包括过程评价、访谈和焦点小组。店铺将在基线（t1）、9个月（t2）和18个月（t3）进行评估。对照店在第二次评估（t2）后被纳入干预店。公共卫生意义：该建议解决了大量工人和服务不足的商业机构所有者的需求。需要新的方法来接触小型商业机构的业主和工人社区。这些方法需要考虑到有限的财政资源，地理上分散的工作地点，业主和工人之间广泛的知识范围，以及现场特定健康和安全计划的可变性。这里提出的方法允许受影响的社区积极参与发现问题和解决方案，参与健康和安全方案的传播，并确保新方案可以通过行业协会和社区技术培训方案长期持续下去。

DESCRIPTION (provided by applicant): The purpose of the proposed research is to evaluate the effectiveness of a randomized intervention designed to reduce exposure to diverse hazards among workers in small auto collision repair shops (Standard Industrial Classification Code 7532). The primary hypothesis of this study is that the availability and use of environmental and administrative controls and personal protective equipment will be greater, and exposure to physical and chemical hazards will be lower, after a comprehensive intervention implemented by owners and workers compared with a minimal intervention. The proposed study utilizes owner and worker auditing of the shop environment, the development of worker/owner health and safety goals and action plans, and periodic assessment of progress towards meeting these goals. Industry representatives and community-based partners will provide technical support and serve on a study Advisory Board. A randomized controlled trial with two groups will be used to test intervention effectiveness. Fifty shops will be randomly assigned to each group. Intervention mapping will serve as the planning model and Social Cognitive Theory will serve as the behavioral model. Study outcomes will be (1) A change in shop hazard score between baseline and two follow-up periods; (2) Changes in owner and worker knowledge and beliefs with regard to shop safety and hazard recognition; and (3) Qualitative measures including process evaluation, interviews, and focus groups. Shops will be evaluated at baseline (t1), nine months (t2), and 18 months (t3). After their second evaluation (t2), control shops will be enrolled as intervention shops. Public Health Significance: This proposal addresses the needs of a large community of workers and owners of underserved business establishments. New methods are needed to reach the community of owners and workers in small business establishments. These methods need to account for limited financial resources, geographically dispersed work sites, the wide range of knowledge among owners and workers, and the variability of site-specific health and safety programs. The approach proposed here allows for the affected community to be actively engaged in identifying problems and solutions, take part in the dissemination of health and safety programs, and assure new programs may be sustained on a long-term basis through trade associations, and community-based technical training programs.