Psychometric properties of the Japanese version of the quality of life-cancer survivors instrument

Maiko Fujimori, Makoto Kobayakawa, Naoki Nakaya, Kanji Nagai, Yutaka Nishiwaki, Masatoshi Inagaki, Yosuke Uchitomi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The purpose of this study was to describe the psychometric properties of the Japanese version of the Quality of Life-Cancer Survivors Instrument (QOL-CS-J) developed in the U.S. This study was conducted as a mail survey to survivors of more than 5 years post curative resection for non-small-cell lung cancer (NSCLC) and who had participated in an earlier survey. This survey included the medical and demographic factors, the QOL-CS scores, and the Medical Outcome Study 36-Item Short Form (SF-36). A total of 113 survivors completed the survey. To confirm the reliability, the Cronbach's α coefficient of each subscale was calculated as an internal consistency (α = 0.65-0.89). To confirm the validity of the trial as conducted, Pearson's correlation coefficients between the subscales of the QOL-CS and the subscales of the SF-36 were calculated. There were moderate correlations between associated subscales including QOL-CS physical to SF-36 bodily pain (r = 0.45) and vitality (r = 0.52), QOL-CS psychological to SF-36 mental health (r = 0.55), QOL-CS social to SF-36 general health perception (r = 0.31) and mental health (r = 0.47), and QOL-CS total to each subscale of SF-36 (r = 0.25-0.64). Findings demonstrated that the QOL-CS-J adequately measured the QOL in long-term NSCLC survivors.

Original languageEnglish
Pages (from-to)1633-1638
Number of pages6
JournalQuality of Life Research
Volume15
Issue number10
DOIs
Publication statusPublished - Dec 1 2006

Keywords

  • Japan
  • Non-small-cell lung cancer
  • Reliability
  • The Quality of Life-Cancer Survivors Instrument
  • Validity

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health

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  • Cite this

    Fujimori, M., Kobayakawa, M., Nakaya, N., Nagai, K., Nishiwaki, Y., Inagaki, M., & Uchitomi, Y. (2006). Psychometric properties of the Japanese version of the quality of life-cancer survivors instrument. Quality of Life Research, 15(10), 1633-1638. https://doi.org/10.1007/s11136-006-0038-4