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Cross-cultural adaptation of a brief outcome questionnaire for Spanish-speaking arthritis patients

  [ 43 votes ]   [ Discuss This Article ] • January 15, 1996

OBJECTIVE. To cross-culturally adapt a brief self-assessment
questionnaire to measure outcome among English- or
Spanish-speaking patients with arthritis.
questionnaire containing the following items was translated to
Spanish: the 8 activities of daily living (ADL) question of
the Modified Health Assessment Questionnaire; a question
about the duration of morning stiffness; and a 10-point pain
scale. Equivalence to the original English, test-retest
reliability, and construct, criterion, and discriminant
validity were determined on a population of patients with 4
clinical centers.
RESULTS. English-Spanish equivalence and
test-retest reliability of the questionnaire were almost
perfect (intra-class correlation coefficients [ri] > or =
0.90 for each). Construct validity, measured by comparing
questionnaire scores with an occupational therapist's
evaluation, was also near-perfect in both languages (ri =
0.93 for English and 0.89 for Spanish). Both versions of the
questionnaire correlated well with the physician-determined
Steinbrocker functional class, as well as with the amount of
pain, grip strength, and walking velocity. Patients with
systemic lupus erythematosus, rheumatoid arthritis,
osteoarthritis, and fibromyalgia differed significantly in
their pain:ADL ratios, in both languages.
items of the Spanish questionnaire that we have adapted are
equivalent to the original English versions. This
questionnaire is suitable for studying Spanish-speaking
subjects with arthritis in the US and elsewhere.

Escalante A, Galarza-Delgado D, Beardmore TD, Baethge BA,
Esquivel-Valerio J, Marines AL, Mingrone M

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