Translation, cross-cultural adaptation, and reproducibility of the Brazilian portuguese-language version of the Wisconsin Smoking Withdrawal Scale.

Objective: To cross-culturally adapt the Wisconsin Smoking Withdrawal Scale (WSWS) for use in Brazil and evaluate the reproducibility of the new (Brazilian Portuguese-language) version.

Methods: The original English version of the WSWS was translated into Brazilian Portuguese. For cross-cultural adaptation, the Brazilian Portuguese-language version of the WSWS was administered to eight volunteers, all of whom were smokers.

Cross-cultural adaptation and assessment of reproducibility of the Duke Activity Status Index for COPD patients in Brazil.

Objective: To cross-culturally adapt the Duke Activity Status Index (DASI) for use in Brazil and evaluate the reproducibility of the new (Brazilian Portuguese-language) version.

Methods: We selected stable patients with clinical and spirometric diagnosis of COPD. Initially, the DASI was translated into Brazilian Portuguese, and the cross-cultural adaptation was performed by an expert committee.

Cultural adaptation and reproducibility of the Breathing Problems Questionnaire for use in patients with COPD in Brazil.

Objective: To translate the Breathing Problems Questionnaire (BPQ) into Portuguese and adapt it to the Brazilian culture, as well as to evaluate its reproducibility in patients with COPD.

Methods: After the BPQ had been translated and adapted to the Brazilian culture, it was administered to a subgroup of 8 patients in order to identify their uncertainties and difficulties. The questionnaire was reviewed by an expert committee, and its final version was arrived at.