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. 2022 Nov 11;101(45):e31666.
doi: 10.1097/MD.0000000000031666.

Health utility measurement for people living with HIV/AIDS under combined antiretroviral therapy: A comparison of EQ-5D-5L and SF-6D

Xiaowen Wang  1 , Hongbing Luo  1 , Enlong Yao  2 , Renhai Tang  3 , Wenbing Dong  4 , Fuyong Liu  5 , Jun Liang  6 , Minyang Xiao  1 , Zuyang Zhang  1 , Jin Niu  1 , Lijun Song  1 , Liru Fu  1 , Xuehua Li  1 , Shicong Qian  7 , Qing Guo  8 , Zhizhong Song  1
Affiliations

Health utility measurement for people living with HIV/AIDS under combined antiretroviral therapy: A comparison of EQ-5D-5L and SF-6D

Xiaowen Wang et al. Medicine (Baltimore). .

Abstract

We compared the discriminative validity, agreement and sensitivity of EQ-5D-5L and SF-6D utility scores in people living with HIV/AIDS (PLWHIV). We conducted a cross-sectional survey among PLWHIV aged more than 18 years old in 9 municipalities in Yunnan Province, China. A convenience sample was enrolled. We administered the SF-12 and EQ-5D-5L to measure health-related quality of life. The utility index of the SF-6D was derived from the SF-12. We calculate correlation coefficients to evaluate the relationship and agreement of 2 instruments. To evaluate the homogeneity of the EQ-5D-5L and SF-6D, intraclass correlation coefficients, scatter plots, and Bland-Altman plots were computed and drawn. We also used receiver operating characteristic curves to compare the discriminative properties and sensitivity of the econometric index. A total of 1797 respondents, with a mean age of 45.6 ± 11.7 years, was interviewed. The distribution of EQ-5D-5L scores skewed towards full health with a skewness of -3.316. The overall correlation between EQ-5D-5L and SF-6D index scores was 0.46 (P < .001). The association of the 2 scales appeared stronger at the upper end. An intraclass correlation coefficient of 0.59 between the EQ-5D-5L and SF-6D meant a moderate correlation and indicated general agreement. The Bland-Altman plot displayed the same results as the scatter plot. The receiver operating characteristic curve showed that the AUC for the SF-6D was 0.776 (95% CI: 0.757, 0.796) and that for the EQ-5D-5L was 0.732 (95% CI: 0.712, 0.752) by the PCS-12, and it was 0.782 (95% CI: 0.763, 0.802) for the SF-6D and 0.690 (95% CI: 0.669, 0.711) for the EQ-5D-5L by the MCS-12. Our study demonstrated evidence of the performance of EQ-5D-5L and SF-6D index scores to measure health utility in people living with HIV/AIDS. There were significant differences in their performance. We preferred to apply the SF-6D to measure the health utility of PLWHIV during the combined antiretroviral therapy period. Our study has demonstrated evidence for instrument choice and preference measurements in PLWHIV under combined antiretroviral therapy.

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Conflict of interest statement

The authors declare that they have no competing interest.

Figures

Figure 1.
Figure 1.
The relationship between SF-12 and SF-6D.
Figure 2.
Figure 2.
Distribution of EQ-5D-5L and SF-6D (a. EQ-5D-5L, b. SF-6D).
Figure 3.
Figure 3.
Scatter plot of EQ-5D-5L and SF-6D index scores.
Figure 4.
Figure 4.
Bland–Altman plot of EQ-5D-5L and SF-6D index scores.
Figure 5.
Figure 5.
ROC of EQ-5D-5L and SF-6D by PCS-12. PCS = physical functional scores.
Figure 6.
Figure 6.
ROC of EQ-5D-5L and SF-6D by MCS-12. MCS = mental functional scores.
See this image and copyright information in PMC

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