D'Egidio Gianni, Patel Rakesh, Rashidi Babak, Mansour Marlene, Sabri Elham, Milgram Paul
Department of Medicine, University of Ottawa, Ottawa, ON, Canada.
Department of Medicine, University of Ottawa, Ottawa, ON, Canada.
Am J Infect Control. 2014 Aug;42(8):852-5. doi: 10.1016/j.ajic.2014.04.017. Epub 2014 Jun 25.
Many interventions have been implemented to improve hand hygiene compliance, each with varying effects and monetary costs. Although some previous studies have addressed the issue of conspicuousness, we found only 1 study that considered improving hand hygiene by using flashing lights.
Our attention theory-based hypothesis tested whether a simple red light flashing at 2-3 Hz affixed to the alcohol gel dispensers, within the main hospital entrance, would increase hand hygiene compliance over the baseline rate. Baseline and intervention observations were completed over five 60-minute periods (Monday-Friday) from 7:30 to 8:30 AM using a covert observation method.
Baseline hand hygiene compliance was 12.4%. Our intervention increased compliance to 23.5% during cold weather and 27.1% during warm weather. Overall, our pooled compliance rate increased to 25.3% (P < .0001).
A simple, inexpensive flashing red light affixed to alcohol gel dispensers was sufficiently salient to approximately double overall hand hygiene compliance within the main hospital entrance. We hypothesize that our intervention drew attention to the dispensers, which then reminded employees and visitors alike to wash their hands. Compliance was worse during cold days, presumably related to more individuals wearing gloves.
已实施多种干预措施以提高手部卫生依从性，每种措施的效果和成本各不相同。尽管之前有一些研究探讨了显眼性问题，但我们仅发现一项研究考虑通过使用闪烁灯光来改善手部卫生。
我们基于注意力理论的假设测试了在医院主入口处的酒精凝胶分配器上安装一个以2 - 3赫兹频率闪烁的简单红灯，是否会使手部卫生依从性高于基线水平。使用隐蔽观察方法，在周一至周五上午7:30至8:30的五个60分钟时间段内完成基线和干预观察。
基线手部卫生依从率为12.4%。我们的干预措施在寒冷天气期间将依从率提高到23.5%，在温暖天气期间提高到27.1%。总体而言，我们汇总后的依从率提高到了25.3%（P < .0001）。
安装在酒精凝胶分配器上的一个简单、廉价的闪烁红灯足够显眼，能使医院主入口处的总体手部卫生依从性提高约一倍。我们推测，我们的干预措施吸引了人们对分配器的注意，进而提醒员工和访客洗手。寒冷天气期间的依从性较差，可能与更多人戴手套有关。
