Translation in Bahasa Indonesia and Linguistic Validation of Mastectomy Module of BREAST-Q: A Description of The Process

Yan Wisnu Prajoko, Ivani Yunita Korwa, Dila Junita

Abstract


Background: Breast-related Symptom Questionnaire (BREAST-Q) has been globally used and validated to measure the outcomes among women undergoing various breast surgery. There was a lack of tools to evaluate patient’s quality of life and satisfaction after mastectomy in Indonesia. In addition, most patients in Indonesia may feel reluctant to express their honest opinions regarding the post-operative outcome openly. Prior to this issue, this study aims to translate and validate the BREAST-Q Mastectomy Module into Bahasa Indonesia, which can be applied to the Indonesian population.

Method: Primarily based on the guidelines from the International Society for Pharmacoeconomics and Outcome Research (ISPOR), the process includes preparation, forward translation, back translation, panel discussion, cognitive debriefing interview with 57 respondents, statistic evaluation of validity and reliability, and final consensus.

Results: Two translators worked on two different forward translation, while a third translator handled the back translation. The translations were then discussed and reviewed to reach an agreement on the finalized version. Statistic evaluation showed Pearson’s r value > 0.26 in all items, with Cronbach’s alpha range 0.72–0.92 (> 0.70). Bland-Altman plots comparison showed that the direction of the mean difference between score 1 and score 2 is close to zero. At the same time, the limits of agreements exceed the minimally detectable change for both scales, indicating all items are valid, reliable, and reflect the concepts of the BREAST-Q Mastectomy Module. The final version of the Bahasa Indonesia Translation is then approved by the Q-Portfolio team.

Conclusion: The translation of BREAST-Q questionnaire Mastectomy Module in Bahasa Indonesia is valid and reliable. It is a suitable instrument to assess the quality of life of patients who underwent mastectomy in the Indonesian population.


Keywords


breast cancer, BREAST-Q, mastectomy, quality of life

Full Text: View | Download

DOI: 10.33371/ijoc.v18i4.1076

Article Metrics

Abstract View: 199,
PDF Download: 66
             

References


WHO. International Agency for Research on Cancer Globocan 2020 [Internet]. Available from: https://gco.iarc.fr/today/data/factsheets/populations/360-indonesia-fact-sheets.pdf.

Pusic AL, Chen CM, Cano S, et al. Measuring quality of life in cosmetic and reconstructive breast surgery: a systematic review of patient-reported outcomes instruments. Plast Reconstr Surg. 2007;120(4):823-37.

Pusic AL, Klassen AF, Scott AM, et al. Development of a new patient-reported outcome measure for breast surgery: the BREAST-Q. Plast Reconstr Surg. 2009;124(2):345-53.

Han J, Grothuesmann D, Neises M, et al. Quality of life and satisfaction after breast cancer operation. Arch Gynecol Obstet. 2010;282(1):75-82.

Cano SJ, Klassen A, Pusic AL. The science behind quality-of-life measurement: a primer for plastic surgeons. Plast Reconstr Surg. 2009;123(3):98e-106e.

Cano SJ, Klassen AF, Scott AM, Pusic AL. A closer look at the BREAST-Q((c)). Clin Plast Surg. 2013;40(2):287-96.

Wild D, Grove A, Martin M, et al. Principles of Good Practice for the Translation and Cultural Adaptation Process for Patient-Reported Outcomes (PRO) Measures: report of the ISPOR Task Force for Translation and Cultural Adaptation. Value Health. 2005;8(2):94-104.

Osburn HG. Coefficient alpha and related internal consistency reliability coefficients. Psychol Methods. 2000;5(3):343-55.

Terwee CB, Bot SD, de Boer MR, et al. Quality criteria were proposed for measurement properties of health status questionnaires. J Clin Epidemiol. 2007;60(1):34-42.

Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet. 1986;1(8476):307-10.

Pittermann A, Radtke C. Psychological Aspects of Breast Reconstruction after Breast Cancer. Breast Care (Basel). 2019;14(5):298-301.

Tevis SE, James TA, Kuerer HM, et al. Patient-Reported Outcomes for Breast Cancer. Ann Surg Oncol. 2018;25(10):2839-45.

Perry S, Kowalski TL, Chang CH. Quality of life assessment in women with breast cancer: benefits, acceptability and utilization. Health Qual Life Outcomes. 2007;5:24.

Ramadhanty Z, Yarsa KY, Probandari A. Construct Validity and Reliability of Indonesian Version of RAND SF-36 Quality of Life Questionnaire in Breast Cancer Patients Indonesian Journal of Cancer. 2019;13(2), 55-58.

Kamya L, Hansson E, Weick L, Hansson E. Validation and reliability testing of the Breast-Q latissimus dorsi questionnaire: cross-cultural adaptation and psychometric properties in a Swedish population. Health Qual Life Outcomes. 2021;19(1):174.

Haimovitz D, Lansky LM, O'Reilly P. Fluctuations in body satisfaction across situations. Int J Eat Disord. 1993;13(1):77-84.


Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.