A comparison of EQ-5D index scores using the UK, US, and Japan preference weights in a Thai sample with type 2 diabetes
2008

Comparing EQ-5D Scores in Thai Diabetics

Sample size: 303 publication Evidence: moderate

Author Information

Author(s): Sakthong Phantipa, Rungpetch Charoenvisuthiwongs, Rossamalin Shabunthom

Primary Institution: Chulalongkorn University

Hypothesis

This study aims to examine the differences and agreements between EQ-5D index scores using UK, US, and Japan preference weights in Thai type 2 diabetes patients.

Conclusion

The Japan model showed better psychometric properties than the UK and US models, and the differences in EQ-5D scores had a small impact on cost-utility analysis.

Supporting Evidence

  • The US weights yielded higher scores than those of the UK and Japan weights.
  • The Japan scheme provided better test-retest reliability than both UK and US schemes.
  • Variation in EQ-5D scores had a marginal impact on incremental cost-utility ratio.

Takeaway

This study looked at how different countries value health for people with diabetes in Thailand, finding that Japan's method works best for Thai patients.

Methodology

A cross-sectional study using a convenience sample of 303 type 2 diabetic outpatients, employing ANOVA, ICCs, and various correlation tests.

Limitations

The study used cross-sectional data and focused only on diabetic outpatients, limiting generalizability to other populations.

Participant Demographics

{"mean_age":61.6,"gender_distribution":{"female_percentage":71},"median_income":5000,"mean_hba1c":7.7,"mean_bmi":26.7,"diabetic_complications":{"neuropathy":40.9,"retinopathy":16.8,"nephropathy":8.3,"cardiovascular":14.5}}

Statistical Information

Confidence Interval

{"uk_weights":"0.74–0.78","us_weights":"0.80–0.83","japan_weights":"0.73–0.76"}

Statistical Significance

p < 0.001

Digital Object Identifier (DOI)

10.1186/1477-7525-6-71

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