Adejare Adeboye A, Eckman Mark H
Department of Biomedical Informatics, University of Cincinnati, Cincinnati, Ohio.
Division of General Internal Medicine and the Center for Clinical Effectiveness, University of Cincinnati, Cincinnati, Ohio.
MDM Policy Pract. 2020 Mar 18;5(1):2381468320914307. doi: 10.1177/2381468320914307. eCollection 2020 Jan-Jun.
The Gambler II is a web-based utility assessment tool supporting visual analogue scale (VAS), standard gamble (SG), and time trade-off (TTO) utility assessments. It contains novel features, including an easy to use project development authoring tool and use of multimedia clips for health state descriptions. Evaluate the usability and understandability of the patient-facing side of The Gambler. Investigate the feasibility of using The Gambler and evaluate its impact on patient knowledge regarding the relevant health states. We used The Gambler to assess utilities on a convenience sample of 55 users for common long-term complications of type 2 diabetes mellitus: diabetic neuropathy, diabetic retinopathy, and diabetic foot infection requiring transmetatarsal amputation. Using VAS, SG, and TTO, we collected metadata, such as time spent on each assessment and the entire assessment process. We evaluated usability with an adaptation of the System Usability Scale survey and understandability. We evaluated impact on knowledge gained through knowledge assessments about these complications before and after use of The Gambler. Overall satisfaction with The Gambler was high, 4.02 on a 5-point scale. Usability rated highly at 84.93 on a normalized scale between 0 and 100. Knowledge scores increased significantly following use of The Gambler from pretest mean of 68% to posttest mean of 76% ( < 0.01). Average time using the software: ∼7½ minutes. The Gambler is an easy to use and understand computer-based tool for utility assessment. It is feasible to use within clinical encounters to support shared decision making, and it has unique features that make it a powerful tool for investigators interested in research on health utilities.
“赌徒二号”是一款基于网络的效用评估工具，支持视觉模拟量表（VAS）、标准博弈法（SG）和时间权衡法（TTO）效用评估。它具有一些新颖的功能，包括易于使用的项目开发创作工具以及用于健康状态描述的多媒体片段。评估“赌徒”面向患者一侧的可用性和易懂性。调查使用“赌徒”的可行性，并评估其对患者有关相关健康状态知识的影响。我们使用“赌徒”对55名用户的便利样本进行效用评估，这些用户患有2型糖尿病的常见长期并发症：糖尿病神经病变、糖尿病视网膜病变以及需要经跖骨截肢的糖尿病足部感染。我们使用VAS、SG和TTO收集元数据，例如每次评估以及整个评估过程所花费的时间。我们通过改编系统可用性量表调查来评估可用性以及易懂性。我们通过对使用“赌徒”前后有关这些并发症的知识评估来评估其对知识获取的影响。对“赌徒”的总体满意度较高，在5分制量表上为4.02分。在0至100的标准化量表上，可用性评分高达84.93分。使用“赌徒”后，知识得分从测试前的平均68%显著提高到测试后的平均76%（P<0.01）。使用该软件的平均时间约为7分半钟。“赌徒”是一款易于使用和理解的基于计算机的效用评估工具。在临床诊疗过程中使用它来支持共同决策是可行的，并且它具有独特的功能，使其成为对健康效用研究感兴趣的研究人员的有力工具。
