Chronic rhinosinusitis (CRS) is one of common health conditions that affects patients’ health-related quality of life. Our purpose is to assess the reliability and validity of Thai-version of Sino-Nasal Outcome Test 22 in chronic rhinosinusitis.
Permission for translation of SNOT-22 from English language to Thai language was obtained from the developer. The translation process was done based on the international standard of translation method. A total of 80 subjects were recruited into the study and divided into two groups comprising of 50 patients with chronic rhinosinusitis and 30 healthy volunteers. Cronbach’s α and Intraclass correlation coefficient were evaluated for its reliability. Validity test was evaluated against VAS score, SF-36 (Thai version) questionnaire and CT scan (based on Lund-Mackay score). Responsiveness was assessed between pre-operative and post-operative scores in 34 patients.
The Thai version of SNOT-22 showed good reliability according to high value of Cronbach’s α coefficient (r = 0.929) and intraclass correlation coefficient (r = 0.935). It also showed good validity by its ability to differential the patients with chronic rhinosinusitis from normal (p < 0.001), and different severity of symptoms (p < 0.05). In addition, the SNOT-22 Thai version also showed good responsiveness when compared between pre-operative and post-operative scores (p < 0.001) and also well-performed in effect size calculation (1.37).
We demonstrated that Thai -version of SNOT-22 has good reliability and validity, suitable for evaluation of chronic rhinosinusitis symptoms together with severity of the disease and response to treatment.
Thai clinical trials registry TCTR20170320003. Date of registration 20/03/2017 (retrospectively registered).
Fokkens WJ , Lund VJ , Mullol J , Bachert C , Alobid I , Baroody F , et al. European Position Paper on Rhinosinusitis and Nasal Polyps 2012. Rhinology . 2012; 50 (23) Suppl: 1–298.
Glicklich RE, Metson R. The health impact of chronic sinusitis in patients seeking otolaryngologic care. Otolaryngol Head Neck Surg. 1995; 113( 1): 104–9. CrossRef
Hopkins C. Patient reported outcome measures in rhinology. Rhinology. 2009; 47( 1): 10–7. PubMed
Canonica GW , Bousquet J , Mullol J , Scadding GK , Virchow JC . A survey of the burden of allergic rhinitis in Europe. Allergy . 2007; 62 (85) Suppl: 17–25.
Lü W, Qi F, Gao ZQ, Feng GD, Yuan XD, Jin XF. Quality of life survey on patients with chronic rhinosinusitis by using Chinese version of the 22-item sinonasal outcome test (SNOT-22). Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2008; 43( 1): 18– 21. PubMed
Lund VJ, Mackay IS. Staging in rhinosinusitis. Rhinology. 1993; 31( 4): 183–4. PubMed
Leurmarnkul W, Meetam P. Development of a quality of life questionnaire: SF-36 (Thai version). Thai. J Pharm Sci. 2000; 24( 2): 92– 111.
Wabnitz DA, Nair S, Wormald PJ. Correlation between preoperative symptom scores, quality-of-life questionnaires and staging with computed tomography in patients with chronic rhinosinusitis. Am J Rhinol. 2005; 19( 1): 91–6. PubMed
- Reliability and validity study of Sino-nasal outcome test 22 (Thai version) in chronic rhinosinusitis
- BioMed Central
Neu im Fachgebiet HNO
Mail Icon II