Objective:

To conduct a cultural adaptation and validation of the DASH questionnaire to evaluate the perspective of patients with neurogenic disorders of the upper extremity regarding the impact on their quality of life.

Method:

We performed an adaptation of the Spanish version of the DASH questionnaire to the Mexican vocabulary and applied it to 478 volunteers. Ceiling effect, floor effect, item-total correlation, descriptive statistics of items and total score, internal consistency, precision, cross-sectional and longitudinal validity were estimated by comparing healthy controls and affected individuals with different disability levels.

Results:

Our DASH questionnaire version was equivalent to those previously approved and showed homogeneity of the items with respect to the total value of the questionnaire (Cronbach’s alpha > 0.96). In addition, it showed an accuracy of 7.25 points and the cross-sectional and longitudinal validity was documented with significant differences between groups and subgroups with distinct disability levels.

Conclusions:

The DASH questionnaire can be used with a high level of confidence in the Mexican population.

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