VIỆT HÓA THANG ĐIỂM NPQ10 KHẢO SÁT CHẤT LƯỢNG CUỘC SỐNG CỦA BỆNH NHÂN VẢY NẾN MÓNG

Abstract

Background: Nail involvement in psoriasis is a prevalent condition that can significantly affect many aspects of daily life. The Nail Psoriasis Quality of Life Scale 10 (NPQ10 scale) is a simple, valid, and reliable tool used to evaluate the quality of life in patients with nail psoriasis. Objective: The aim of this study was to translate and adapt the NPQ10 scale for the Vietnamese population, ensuring cultural relevance and accuracy. Methods: The translation and cross-cultural adaptation of the original NPQ10 followed international guidelines. Stage 1: forward-translation from the original language, English (or French), into Vietnamese. Stage 2: synthesis of translations. Stage 3: back-translation. Stage 4: a panel of experts reviewed and reached a consensus on the pre-final Vietnamese version. Stage 5: 40 patients were pretested with the pre-final version to finalize the translated scale. Results: The instrument was translated by two separate translators, with any discrepancies addressed during the synthesis phase. The back-translations were highly consistent with the original questionnaire. Experts reached a consensus on the pre-final version, which was pretested with 40 participants. The majority of patients skipped question 7 and considered question 8 to be incompatible with daily life practices (92.5% and 85.0% relatively), suggesting revisions to their content. Following discussions with experts, we modified the two questions to better align with Vietnamese cultural context and subsequently re-administered the survey to 20 patients. All participants reported that the questions were clear and comprehensible. Experts agreed on the final version. Conclusions: The translation and cross-cultural adaptation of the NPQ10 scale into Vietnamese adhered to standard protocol. The pilot study produced favorable results, collecting feedback to improve the translation. The Vietnamese version of the NPQ10 scale was considered comprehensible, straightforward, and clear.