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Validation of the Japanese version of the quality of recovery score QoR-40

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Abstract

Purpose

The quality of recovery score QoR-40 is a recovery-specific and patient-rated questionnaire to assess the early postoperative health status of patients. However, the Japanese version of the QoR40 has not been established. The aim of this study was to validate the quality of recovery 40 Japanese version (the QoR-40J) according to the methods adopted by the International Quality of Life Assessment (IQOLA) project.

Methods

After obtaining ethics committee approval and consent, 192 general and otological surgical patients were studied. The QoR-40J was used to measure postoperative health status on day 3 and 1 month after surgery. The level of quality of life was also evaluated using a general, health-related quality of life questionnaire (Short-Form Health Survey-36 sub-scales; SF-36), at 1 month after the surgery. Psychometric analysis including the following properties: test–retest reliability, internal consistency, predictive validity, and measurement of responsiveness, was performed to validate the QoR-40J.

Results

Test–retest reliability (Spearman’s correlation coefficient) and internal consistency (Cronbach’s α) of the QoR-40J were 0.887 and 0.91, respectively. A significant relationship was observed between the total QoR-40J score and duration of hospitalization (r = −0.291) and between the global QoR-40J score and postoperative scores of the SF-36 sub-scales (physical function, ρ = 0.287; vital score, ρ = 0.349). The standardized mean of the QoR-40J, a measurement of responsiveness, was 0.70.

Conclusion

The results of the psychometric analysis indicated that the QoR-40J has characteristics of acceptable validity, reliability, and responsiveness in clinical practice in Japan. The QoR-40J may aid in evaluating the quality of recovery after surgery or the quality of methods of anesthesia.

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Acknowledgments

We thank Professor Paul Myles for granting us permission to translate the QoR40 into Japanese.

Author information

Authors and Affiliations

  1. Department of Anesthesiology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan

    Yuu Tanaka, Satoki Inoue, Masahiko Kawaguchi & Hitoshi Furuya

  2. Department of Psychology, Faculty of Sociology, Kansai University, Suita, Japan

    Takafumi Wakita

  3. Department of Epidemiology and Health Care Research, Kyoto University, Kyoto, Japan

    Shunichi Fukuhara

  4. Department of Anesthesiology, Tenri General Hospital, Tenri, Japan

    Makoto Nishiwada

Authors
  1. Yuu Tanaka
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  2. Takafumi Wakita
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  3. Shunichi Fukuhara
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  4. Makoto Nishiwada
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  5. Satoki Inoue
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  6. Masahiko Kawaguchi
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  7. Hitoshi Furuya
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Corresponding author

Correspondence to Yuu Tanaka.

Appendix 1

Appendix 1

Please rate the quality of your recovery on this scale by placing an X on the line.

For example, if you have a very good recovery, you would mark the line like this

figure a

.

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Tanaka, Y., Wakita, T., Fukuhara, S. et al. Validation of the Japanese version of the quality of recovery score QoR-40. J Anesth 25, 509–515 (2011). https://doi.org/10.1007/s00540-011-1151-2

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  • DOI: https://doi.org/10.1007/s00540-011-1151-2

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