A comparison of Vietnamese, Malaysian, Thai and Indonesian EQ-5D-5L value sets using a Vietnamese sample of HER2 positive breast cancer patients

Vo Ngoc Yen Nhi; Tran Thi Yen Nhi; Nguyen Tran Nhu Y; Nguyen Thi To Nga; Nguyen Thi Thu Thuy

doi:10.59294/HIUJS.VOL.7.2024.688

Từ khóa:

HER2 positive breast cancer, EQ-5D-5L, value set comparison

Tóm tắt

Background: Vietnamese value set was published in 2019, but so far there has been no assessment comparison of the Vietnamese value set with other value sets. Objectives: To compare the Vietnamese, Malaysian, Thai, Indonesian value sets and evaluate the appropriateness of the Vietnamese value set for Vietnamese people. Methods: A cross-sectional study was conducted on 338 HER2 positive breast cancer patients are treating at 6 hospitals in Vietnam. Data was collected by taking the entire sample from July to December in 2019. The EQ-5D-5L health states ratings were collected through interviews with patients and utility scores were calculated using the Vietnamese, Malaysian, Thai and Indonesian value sets. The difference in the mean values from 4 value sets was verified by the Wilcoxon signed rank test and the consistency between value sets was assessed by using intraclass correlation coefficients (ICCs). Spearman's test was used to evaluate the correlation between the patient's demographic characteristics with EQ-5D score (95% confidence interval). Results: The study was performed on 338 patients with the mean age of 53.870 ± 9.970 and weight of patients of 54.589 ± 7.698 kg. The Thai value set had the highest mean utility score (0.904 ± 0.142), followed by the Indonesian value set (0.881 ± 0.117), Malaysian value set (0.867 ± 0.143) and the Vietnamese value set had the smallest mean utility score (0.863 ± 0.142). There was a very high consistency between the value sets ( intraclass correlation coefficients > 0.900). The forecasting model of EQ-5D VAS utility score based on EQ-5D-5L utility score from the Vietnamese value set had the highest R square (R2 = 0.231). Conclusion: Vietnamese, Malaysian, Thai, Indonesian value sets have an overall high level of correlation and consistency, in which the correlation of Vietnamese and Malaysian value sets is highest. The Vietnamese value set is most suitable for the Vietnamese HER2-positive breast cancer patients, the Malaysian value set is the second-best option to be applied.

Abstract

Background: Vietnamese value set was published in 2019, but so far there has been no assessment comparison of the Vietnamese value set with other value sets. Objectives: To compare the Vietnamese, Malaysian, Thai, Indonesian value sets and evaluate the appropriateness of the Vietnamese value set for Vietnamese people. Methods: A cross-sectional study was conducted on 338 HER2 positive breast cancer patients are treating at 6 hospitals in Vietnam. Data was collected by taking the entire sample from July to December in 2019. The EQ-5D-5L health states ratings were collected through interviews with patients and utility scores were calculated using the Vietnamese, Malaysian, Thai and Indonesian value sets. The difference in the mean values from 4 value sets was verified by the Wilcoxon signed rank test and the consistency between value sets was assessed by using intraclass correlation coefficients (ICCs). Spearman's test was used to evaluate the correlation between the patient's demographic characteristics with EQ-5D score (95% confidence interval). Results: The study was performed on 338 patients with the mean age of 53.870 ± 9.970 and weight of patients of 54.589 ± 7.698 kg. The Thai value set had the highest mean utility score (0.904 ± 0.142), followed by the Indonesian value set (0.881 ± 0.117), Malaysian value set (0.867 ± 0.143) and the Vietnamese value set had the smallest mean utility score (0.863 ± 0.142). There was a very high consistency between the value sets ( intraclass correlation coefficients > 0.900). The forecasting model of EQ-5D VAS utility score based on EQ-5D-5L utility score from the Vietnamese value set had the highest R square (R2 = 0.231). Conclusion: Vietnamese, Malaysian, Thai, Indonesian value sets have an overall high level of correlation and consistency, in which the correlation of Vietnamese and Malaysian value sets is highest. The Vietnamese value set is most suitable for the Vietnamese HER2-positive breast cancer patients, the Malaysian value set is the second-best option to be applied.

Tài liệu tham khảo

[1] H. National Institute and E. Care, "NICE process and methods Guides," in guide to the methods of technology appraisal 2013. London: National Institute for Health and Care Excellence (NICE), 2013.

[2] G. Balestroni and G. Bertolotti, "EuroQol-5D (EQ-5D): An instrument for measuring quality of life," (in ita), Monaldi archives for chest disease = Archivio Monaldi per le malattie del torace, vol. 78, no. 3, pp. 155-9, Sep 2012, doi: 10.4081/monaldi.2012.121.

DOI: https://doi.org/10.4081/monaldi.2012.121

[3] EQ-5D. "EQ-5D-5L | Valuation: Standard value sets." https://euroqol.org/eq-5d-instruments/eq-5d-5l-about/valuation-standard-value-sets/ (accessed 09, 2021).

[4] V. Q. Mai, S. Sun, H. V. Minh, N. Luo, K. B. Giang, L. Lindholm, and K. G. Sahlen, "An EQ-5D-5L value set for Vietnam," (in eng), Qual Life Res, vol. 29, no. 7, pp. 1923-1933, Jul 2020.

DOI: https://doi.org/10.1007/s11136-020-02469-7

[5] J. Pattanaphesaj, M. Thavorncharoensap, J. M. Ramos-Goñi, S. Tongsiri, L. Ingsrisawang, and Y. Teerawattananon, "The EQ-5D-5L Valuation study in Thailand," (in eng), Expert Rev Pharmacoecon Outcomes Res, vol. 18, no. 5, pp. 551-558, Oct 2018, doi: 10.1080/14737167.2018.1494574.

DOI: https://doi.org/10.1080/14737167.2018.1494574

[6] F. D. Purba et al., "The Indonesian EQ-5D-5L Value Set," (in eng), PharmacoEconomics, vol. 35, no. 11, pp. 1153-1165, 2017, doi: 10.1007/s40273-017-0538-9.

DOI: https://doi.org/10.1007/s40273-017-0538-9

[7] F. A. Yusof, A. Goh, and S. Azmi, "Estimating an EQ-5D value set for Malaysia using time trade-off and visual analogue scale methods," (in eng), Value in health: The Journal of the International Society for Pharmacoeconomics and Outcomes Research, vol. 15, no. 1 Suppl, pp. S85-90, Jan-Feb 2012, doi: 10.1016/j.jval.2011.11.024.

DOI: https://doi.org/10.1016/j.jval.2011.11.024

[8] H. Bailey and P. Kind, "Preliminary findings of an investigation into the relationship between national culture and EQ-5D value sets," (in eng), Qual Life Res, vol. 19, no. 8, pp. 1145-54, Oct 2010, doi: 10.1007/s11136-010-9678-5.

DOI: https://doi.org/10.1007/s11136-010-9678-5

[9] D. Endarti, A. Riewpaiboon,… and S. A. Kristina, "A comparison of EQ-5D-3L index scores Using Malaysian, Singaporean, Thai, and UK value sets in Indonesian cervical cancer patients," (in eng), alue Health Reg Issues, vol. 15, pp. 50-55, May 2018, doi: 10.1016/j.vhri.2017.07.008.

DOI: https://doi.org/10.1016/j.vhri.2017.07.008

[10] J. Roick et al., "The association of socioeconomic status with quality of life in cancer patients over a 6-month period using individual growth models," (in eng), Supportive care in cancer: official journal of the Multinational Association of Supportive Care in Cancer, vol. 27, no. 9, pp. 3347-3355, Sep 2019, doi: 10.1007/s00520-018-4634-y.

DOI: https://doi.org/10.1007/s00520-018-4634-y