Assessing the construct validity of the Italian version of the EQ-5D: preliminary results from a cross-sectional study in North Italy
2006

Validity of the Italian EQ-5D

Sample size: 1622 publication Evidence: moderate

Author Information

Author(s): Savoia Elena, Fantini Maria Pia, Pandolfi Pier Paolo, Dallolio Laura, Collina Natalina

Primary Institution: Alma Mater Studiorum University of Bologna

Hypothesis

The study aims to assess the construct validity of the Italian version of the EQ-5D in a general population of North Italy.

Conclusion

The Italian version of the EQ-5D is well accepted and shows good reliability and construct validity.

Supporting Evidence

  • The EQ-5D showed a 91% response rate among participants.
  • Cronbach's alpha for the EQ-5D was 0.73, indicating good reliability.
  • Mean EQ-5D index score was 0.81, suggesting good health-related quality of life.
  • Significant correlations were found between EQ-5D and SF-12 scores.

Takeaway

This study checks if a health survey used in Italy works well and is reliable for understanding people's health.

Methodology

The study involved 1,622 adults who completed the EQ-5D and SF-12 questionnaires along with socio-demographic and clinical data.

Potential Biases

Potential bias due to reliance on self-reported health status and the use of UK population norms for utility values.

Limitations

The study sample may not represent the entire Italian population due to regional differences.

Participant Demographics

Participants aged 18-93, 52% female, with varied educational levels and occupations.

Statistical Information

P-Value

p<0.001

Confidence Interval

95% C.I. 4.7–10.4

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1186/1477-7525-4-47

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