VIỆT HÓA BẢNG CÂU HỎI KHẢO SÁT CHẤT LƯỢNG CUỘC SỐNG CỦA BỆNH NHÂN VẢY NẾN MÓNG NAPPA-QOL

Abstract

Background: Nail manifestations are a common feature of psoriasis, causing discomfort and affecting various aspects of quality of life, including physical appearance, emotional well-being, social interactions, and daily functioning. The Nail Assessment in Psoriasis and Psoriatic Arthritis–Quality of Life (NAPPA-QoL) questionnaire is a simple, valid, reliable, and specific tool for assessing the quality of life of nail psoriasis patients. Objective: To translate, and cross-culturally adapt the NAPPA-QoL questionnaire into Vietnamese. Methods: The translation and cross-cultural adaptation process of the NAPPA-QoL questionnaire was based on international guidelines. Stage 1: forward-translations from the source language, English (or German), into Vietnamese. Stage 2: reconciliation. Stage 3: back-translation. Stage 4: experts reviewed and achieved consensus on the pre-final Vietnamese version. Stage 5: cognitive debriefing with 20 patients with the pre-final version to compile a final one. Results: Two independent translators translated the instrument into two versions. Any discrepancies were addressed during the reconciliation stage. The back-translation was closely aligned with the original questionnaire. A consensus was reached by the experts on the pre-final version, which was then pretested with 20 participants. The questionnaire was deemed clear, not confusing, and comprehensible to 100% of the participants, except for question 13, where a minor revision of the wording was suggested. Following further review and adjustment, the final consensus was achieved on the translation. Conclusions: The translation and cross-cultural adaptation process of the NAPPA-QoL questionnaire into Vietnamese followed established guidelines. The cognitive debriefing gathered valuable feedback utilized to refine the translation. The Vietnamese version of the NAPPA-QoL questionnaire was evaluated as comprehensible, simple, and clear.