Eckhardt Mary R, Kerr Jacqueline, Taylor Wendell C
Am J Health Promot. 2015 May-Jun;29(5):291-3. doi: 10.4278/ajhp.120816-ARB-398. Epub 2014 Mar 26.
This study tested the effectiveness of two point-of-decision signs to increase stair use and investigated message content by comparing signs with general and specific messages.
This study used a quasi-experimental time series design, including a 2-week baseline period: 2 weeks with a general message and 2 weeks with a specific message.
The signs were placed in an eight-story university building.
The subjects comprised all adults entering the building. During the study, 2997 observations of stair/elevator choice were made.
A stair-prompt sign with a general message and a sign with a specific message served as the interventions.
Observers measured stair/elevator choice, demographics, and traffic volume.
Logistic regression analyses were employed, adjusting for covariates.
The specific sign intervention showed significantly increased odds of stair use compared to baseline (odds ratio [OR] = 2.04, 95% confidence interval [CI] = 1.46-2.84). The odds of stair use were also significantly greater with the specific sign than the general sign (OR = 1.57, 95% CI = 1.13-2.20).
Only the specific sign significantly increased stair use. The results indicate that a specific message may be more effective at promoting stair use.
本研究测试了两种决策点标识对增加楼梯使用率的有效性，并通过比较带有一般信息和特定信息的标识来研究信息内容。
本研究采用准实验时间序列设计，包括一个为期2周的基线期：2周展示一般信息，2周展示特定信息。
标识放置在一栋八层的大学建筑中。
受试者包括所有进入该建筑的成年人。在研究期间，对楼梯/电梯选择进行了2997次观察。
带有一般信息的楼梯提示标识和带有特定信息的标识作为干预措施。
观察者测量楼梯/电梯选择、人口统计学特征和交通流量。
采用逻辑回归分析，并对协变量进行调整。
与基线相比，特定标识干预显示楼梯使用率的优势比显著增加（优势比[OR]=2.04，95%置信区间[CI]=1.46-2.84）。特定标识的楼梯使用率优势比也显著高于一般标识（OR=1.57，95%CI=1.13-2.20）。
只有特定标识显著增加了楼梯使用率。结果表明，特定信息在促进楼梯使用方面可能更有效。
