Validation of the Chinese Version of the Functional Outcomes of Sleep Questionnaire-10 in Pregnant Women

Shao Yu Tsai*, Shiow Ching Shun, Pei Lin Lee, Chien Nan Lee, Terri E. Weaver

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We evaluated the psychometric properties of a Mandarin Chinese version of the Functional Outcomes of Sleep Questionnaire-10 (FOSQ-10) in pregnant women. A total of 228 first-trimester pregnant women participated in the study, which was conducted in an outpatient obstetric clinic at a medical center in Taipei, Taiwan. The Chinese version of the FOSQ-10 demonstrated satisfactory internal consistency (Cronbach alpha =.85), adequate corrected item-total correlations (from.40 to.67), and acceptable test–retest reliability over 7 days (ICC =.73). Construct validity was supported by exploratory factor analysis showing a one-factor structure with item loadings between.49 and.77. Significant associations with the Medical Outcomes Study Short-Form Health Survey 12 version 2 and Pittsburgh Sleep Quality Index supported criterion-related and convergent validity. Significant differences in the Chinese version of the FOSQ-10 total scores were found between women with clinically significant daytime sleepiness and those without, suggesting adequate discriminant validity. Ceiling effects were observed for all items, but no floor or ceiling effects were found for total scores. Findings suggest that the Chinese version of the FOSQ-10 is a valid and reliable instrument to identify important effects of sleep-related impairment in Chinese women during pregnancy. Further testing is needed in more diverse pregnant women, such as women with complicated pregnancies and those with sleep disorders.

Original languageEnglish
Pages (from-to)463-471
Number of pages9
JournalResearch in Nursing and Health
Volume39
Issue number6
DOIs
StatePublished - 1 Dec 2016

Keywords

  • fatigue
  • functional status
  • pregnancy
  • psychometric validation
  • quality of life
  • sleep
  • sleepiness

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