AbstrakKuesioner untuk menilai kualitas hidup saat ini semakin meningkat penggunaannya dalam penelitian klinis hasil intervensi medis, baik operatif maupun medikamentosa. SNOT-22 dianggap sebagai alat ukur yang paling sesuai untuk menilai kualitas hidup pasien rinosinusitis kronik.Tujuan penelitian ini melakukan adaptasi budaya, alih bahasa, dan validasi Abstract Questionnaires for quality of life (QoL) have been increasingly used in clinical trials to evaluate the impact of medical and surgical procedures. Among these, SNOT-22 was considered as the most suitable tool for assessing QoL in chronic rhinosinusitis. The purpose of this study was to conduct cross-cultural adaptation, translation, and validation of the Indonesian version of SNOT-22. This was a descriptive analitical cross-sectional study on 50 patients with chronic rhinosinusitis at the Rhinology-Allergy Clinic of the ORL-HNS Department, Faculty of Medicine Universitas Padjadjaran/Dr. Hasan Sadikin General Hospital Bandung, during the period of November 2015-February 2016. Diagnosis was made based on anamnesis while the severity of the disease was determined using nasoendoscopic findings (Lund-Kennedy). QoL was measured using SNOT-22. The validation process of the Indonesian questionnaire included translation of original SNOT-22 in to Indonesian by independent Indonesian translators, and backtranslation to English by English translators. The reliability of the questionnaire was measured using Cronbach's alpha and the discriminant validity was assessed using Rank Spearman's. Results showed a Cronbach's alpha of 0,936, suggesting good internal consistency while the Rank Spearman's correlation results suggested that the translation was valid (rs=0.961 and rs=0.978). Correlation for each individual QoL itemwas also reliable (rs=0.900). Therefore, the Indonesian version of the SNOT-22 is a valid instrument with good internal consistency and validity for assessing QoL in patients with CRS. [MKB. 2017;49(4):267-73]