Reliability and validity of the Chinese version of the sunlight exposure questionnaire

Front Public Health. 2024 Mar 14:12:1281301. doi: 10.3389/fpubh.2024.1281301. eCollection 2024.

Abstract

Objective: This study aimed to translate and validate the reliability and validity of the Chinese version of the Philippines Sunlight Exposure Questionnaire.

Methods: A total of 392 Chinese individuals aged at least 18 years, residing in various cities in Sichuan province for at least 1 year, were recruited. The reliability of the Chinese version of the questionnaire was measured through internal consistency, split-half reliability, and retest reliability, while validity was determined using the content validity index and the structure validity index.

Results: The Chinese version of the Sunlight Exposure Questionnaire, which includes 19 items covering 5 factors, demonstrated McDonald's omega coefficient of 0.788. The split-half reliability of the questionnaire was 0.823, and the retest reliability was 0.940. The content validity index (S-CVI) was 0.952. The five-factor structure, supported by eigenvalues, explained 66.2% of the total variance. Confirmatory factor analysis indicated favorable model fit.

Results: The chi-square value degrees of freedom ratio (χ2/df) = 1.852, the goodness-of-fit index (GFI) = 0.938, the normed fit index (NFI) = 0.922, the incremental fit index (IFI) = 0.962, the comparative fit index (CFI) = 0.962, the Tucker-Lewis index (TLI) = 0.952, and root mean square error of approximation (RMSEA) = 0.047. The indicators of the fit of the model were within reasonable bounds.

Conclusion: The Chinese version of the Sunlight Exposure Questionnaire shows validity and good reliability for assessing sun exposure among adults in a Chinese cultural context.

Keywords: circadian rhythms; health; reliability; sunlight; validity; vitamin D.

Publication types

  • Validation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • China
  • Factor Analysis, Statistical
  • Humans
  • Language
  • Psychometrics
  • Reproducibility of Results
  • Sunlight*
  • Surveys and Questionnaires*

Grants and funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This research was supported by the Nursing Key Laboratory of Sichuan Province Fund Programme (HLKF2022-4), the 2022 Open Project of Development and Regeneration Key Lab of Sichuan Province (2022LHZYYB-17), the 2022 Open Project of Clinical Research Center for Geriatric Diseases (2022LHFSSYB-03), the 2022 Chengdu Medical College Graduate Student Innovation Fund (YCX2022-01-43), the 2022 Chengdu Medical College Graduate Student Innovation Fund (YCX2022-01-48), and the 2023 Open Project of Development and Regeneration Key Lab of Sichuan Province (23LHZJ04).