Validation of the Wisconsin upper respiratory symptom survey-24, Chinese version

Ann Med. 2022 Dec;54(1):655-665. doi: 10.1080/07853890.2022.2043559.

Abstract

Background: The Wisconsin upper respiratory symptom survey (WURSS) is a validated English questionnaire to evaluate the quality of life and severity of upper respiratory tract infections (URTIs). We aimed to develop a Mandarin Chinese version of WURSS-24 (WURSS-24-C) and evaluate its reliability, validity and minimal important difference (MID).

Methods: The WURSS-24-C was developed using the forward-backward translation procedure. People with URTIs' symptoms within 48 h of onset were recruited and asked to fill in the WURSS-24-C daily for up to 14 d. Exploratory and confirmatory factor analyses were used to suggest domains. The 8-Item Short Form Health Survey (SF-8) assessing general mental and physical health was used to assess validity. Reliability estimated by Cronbach's alpha and mean day-to-day change for those indicating minimal improvement as MID were evaluated.

Results: The WURSS-24-C was found to be acceptable, relevant, and easy to complete in cognitive debriefing interviews. A total number of 300 participants (age 28.4 ± 9.3, female 70%) were monitored for 2500 person-days. Four domains (activity and function, systemic symptoms, nasal symptoms and throat symptoms) of the WURSS-24-C were confirmed (comparative fit index [CFI] = 0.93). The reliability of this 4-domain-structure is good (Cronbach's alphas varied from 0.849 to 0.943). Convergent validity is moderate (Pearson correlation coefficients between daily WURSS-24-C and the SF-8 were -0.780 and -0.721, for the SF-8 physical and mental health, respectively). Estimates of MID for individual items varied from -0.41 to -1.14.

Conclusions: The WURSS-24-C is a reliable and valid questionnaire for assessing illness-specific quality-of-life health status in Chinese-speaking patients with URTIs.Key messagesThe Wisconsin upper respiratory symptom survey (WURSS) series are patient-oriented questionnaire instruments assessing the quality of life and severity of upper respiratory tract infections (URTIs).The WURSS-24 was translated into Mandarin Chinese using the forward-backward translation procedure, and evaluated its validity, reliability and minimal important difference (MID) in 300 Chinese participants with URTIs.The WURSS-24 Chinese version (WURSS-24-C) seems to be a reliable and valid questionnaire for assessing illness-specific quality-of-life health status in Chinese patients with URTIs.

Keywords: WURSS; common cold; psychometrics; quality of life; reliability; upper respiratory infection; validation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • China
  • Female
  • Humans
  • Quality of Life*
  • Reproducibility of Results
  • Severity of Illness Index
  • Surveys and Questionnaires
  • Wisconsin
  • Young Adult

Grants and funding

The study was funded by China National Science and Technology Major Project, NO:2017ZX10305501- 006; Guangdong Provincial Key Laboratory of T CM Research on Emergency, NO: 2017B030314176; Evidence-based Capacity Building Project of Traditional Chinese Medicine, NO: 2019XZZX-LG003; Collaborative innovation team project of Guangzhou University of Chinese Medicine, NO:2021XK06 and 2021XK49; and Guangzhou Municipal Science and Technology Bureau, NO: 201803010121. G.S. acknowledges support from National Nature Science Foundation of China, China, NO: 82004205; China Postdoctoral Science Foundation, China, NO: 2020M672741 and 2020T Q0137; the Karolinska Institutet research funds, Sweden, NO: 2020-01616; the Science and Technology Research Fund from Guangdong provincial hospital of Chinese medicine, China, No: YN2018QL08. The funding body was not involved in the design, conduct, data collection, analysis, interpretation and writing of this study.