Cross-cultural adaptation and validation to Brazil of the Obesity-related Problems Scale

ABSTRACT

Objective

To validate a reliable version of the Obesity-related Problems Scale in Portuguese to use it in Brazil.

Methods

The Obesity-related Problems Scale was translated and transculturally adapted. Later it was simultaneously self-applied with a 12-item version of the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0), to 50 obese patients and 50 non-obese individuals, and applied again to half of them after 14 days.

Results

The Obesity-related Problems scale was able to differentiate obese from non-obese individuals with higher accuracy than WHODAS 2.0, correlating with this scale and with body mass index. The factor analysis determined a two-dimensional structure, which was confirmed with χ²/df=1.81, SRMR=0.05, and CFI=0.97. The general a coefficient was 0.90 and the inter-item intra-class correlation, in the reapplication, ranged from 0.75 to 0.87.

Conclusion

The scale proved to be valid and reliable for use in the Brazilian population, without the need to exclude items.

Obesity; Quality of life; Translating; Psychometrics; Validation studies