Objectives: In Denmark, patients with inflammatory arthritis (IA) have completed patient-reported outcome measures (PROMs) via touchscreens in the outpatient clinic since 2006. However, current technology makes it possible for patients to use their own smartphone via an application (app) developed for the Danish Rheumatology Database (DANBIO). This study aims to evaluate the agreement of PROMs between the DANBIO app and outpatient touchscreen in patients with IA.

Method: Patients with IA (rheumatoid arthritis, psoriatic arthritis, and axial spondyloarthritis) were enrolled in a randomized, crossover, agreement study. Participants answered PROMs through the two device types in a randomized order. Differences in PROM scores with 95% confidence intervals (CIs) were evaluated for similarity according to prespecified equivalence margins.

Results: The touchscreen invitation was accepted by 138 patients. Sixty patients (20 with each diagnosis) were included. The difference in Health Assessment Questionnaire Disability Index between the two device types was −0.007 (95% CI −0.043 to 0.030); thus, equivalence was demonstrated. In addition, all other PROMs obtained with the two device types were equivalent, except for the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), which was within the limits of minimally clinically important difference (MCID). In total, 78.3% preferred the DANBIO app.

Conclusion: In patients with IA, equivalence was demonstrated between two device types for all PROMs except BASDAI; however, BASDAI was within the limits of the MCID. Implementation of the DANBIO app is expected to optimize outpatient visits, thereby improving healthcare for the individual patient and society.

目标：在丹麦，自 2006 年以来，炎症性关节炎 (IA) 患者已在门诊通过触摸屏完成患者报告结果测量 (PROM)。然而，当前的技术使患者可以通过应用程序（应用程序）使用自己的智能手机) 为丹麦风湿病数据库 (DANBIO) 开发。本研究旨在评估 DANBIO 应用程序与 IA 患者的门诊触摸屏之间的 PROM 一致性。

方法：将患有 IA（类风湿性关节炎、银屑病关节炎和轴性脊柱关节炎）的患者纳入一项随机、交叉、一致的研究。参与者以随机顺序通过两种设备类型回答 PROM。根据预先指定的等价边界评估 PROM 分数与 95% 置信区间 (CI) 的差异的相似性。

结果：138名患者接受了触摸屏邀请。包括 60 名患者（每种诊断 20 名）。两种设备类型之间的健康评估问卷残疾指数差异为 -0.007（95% CI -0.043 至 0.030）；因此，证明了等效性。此外，使用这两种设备类型获得的所有其他 PROM 是等效的，除了 Bath 强直性脊柱炎疾病活动指数 (BASDAI)，它在最小临床重要差异 (MCID) 的范围内。总体而言，78.3% 的人更喜欢 DANBIO 应用程序。

结论：在 IA 患者中，除 BASDAI 外，所有 PROM 的两种设备类型均证明了等效性；但是，BASDAI 在 MCID 的范围内。DANBIO 应用程序的实施有望优化门诊就诊，从而改善个体患者和社会的医疗保健。