Preprint
Article

Adaptation and Linguistic Validation of Angioedema PROMs in Latvian for Assessing Recurrent Angioedema

Submitted:

29 January 2025

Posted:

30 January 2025

You are already at the latest version

A peer-reviewed article of this preprint also exists.

Abstract
Background: Angioedema (AE) is a localized, non-pitting swelling affecting subcuta-neous and/or submucosal tissues. Despite varying underlying mechanisms, AE signif-icantly impacts patients' quality of life (QoL), which is closely linked to disease activity and control. Objectives: This study aimed to translate and linguistically validate the angioedema activity score (AAS), angioedema control test (AECT), and angioedema quality of life (AE-QoL) questionnaires into Latvian, and to use these validated tools to assess disease activity, control, and quality of life within the study population. Methods: PROMs, including the AECT, AAS, and AE-QoL, underwent a standardized linguistic validation process. Patients with hereditary angioedema (HAE), mast cell-mediated an-gioedema (AE-MC), and angioedema of unknown origin (AE-UNK) were recruited from two separate studies conducted at Riga Stradiņš University. Results: We enrolled 41 participants (90.2% women) with a mean age of 46.3 years. AE-MC was most common (63.4%), followed by HAE (19.5%) and AE-UNK (17.1%). The mean AAS score was 15.8, with no significant differences regarding AE type, gender, or age. The mean AECT score was 8.29, revealing significant gender differences (women: 7, men: 13.5). The AE-QoL total score was 45.5, with significant gender differences in most domains. Strong corre-lations were found between AE-QoL scores and both AAS and AECT, highlighting the impact of both disease activity and control on QoL. Conclusion: The Latvian adaptation of the AAS, AECT, and AE-QoL questionnaires effectively assesses AE activity, control, and disease-related QoL. Our study reveals poor disease control, underscoring the need for tailored interventions and regular PROM evaluations, with the Latvian version of the AE-QoL questionnaire identifying five distinct domains compared to four in the original version.
Keywords: 
Angioedema; Patient-Reported Outcome Measures (PROMs); Quality of life; Disease activity and control; Linguistic validation of PROMs
Subject: 
Medicine and Pharmacology  -   Dermatology
Copyright: This open access article is published under a Creative Commons CC BY 4.0 license, which permit the free download, distribution, and reuse, provided that the author and preprint are cited in any reuse.

Downloads

35

Views

52

Comments

0

Subscription

Notify me about updates to this article or when a peer-reviewed version is published.

Email

Prerpints.org logo

Preprints.org is a free preprint server supported by MDPI in Basel, Switzerland.

Subscribe

© 2025 MDPI (Basel, Switzerland) unless otherwise stated