The 50 patients listed 229 areas, on the first day of PGI administration, which were grouped into 28 categories the five most cited categories were walking fast, climbing a slope/ladder, working, lifting weights and dancing. The mean PGI score was 43.5 ± 15.0 points. The sample characteristics are shown in Table 1.
Fifty COPD patients made up the final sample. Of 52 individuals evaluated, two individuals were excluded: one for having a hypertensive peak before starting Glittre ADL and the other for not being able to perform it (balance deficit). The Portuguese translation of the PGI instrument was carried out, obtaining a version without major adaptations. Statistical significance was considered when p <0.05 in all analyzes.
The comparison between the two tests was performed using the paired Wilcoxon test. MDD was estimated using the formula: MDCindiv = EPM * 1,65 *√2, where 1.65 represents the z-score of the 90% confidence interval and √2 represents the number of errors associated with the repeated measure. Absolute reliability was assessed by EPM and MDD, according to the equations described below.(17) EPM was estimated by the equation: EPM = DP * √ (1-r), in which DP represents the standard deviation of the sample and r the ICCr. High reliability was considered when ICCr ≥ 0.90. The score obtained in PGI had weak correlation with the SGRQ total score (r = -0.44, p 0.75 strong correlation.(16) Test-retest reliability was analyzed using the intraclass correlation coefficient (ICCr), alpha model, two-way random effects (model alpha, 2-way random-effects model) and agreement using the Bland Altman diagram. Results: The translation occurred without changes in the questionnaire. After 1-2 weeks, PGI was again applied for the analysis of relative and absolute reliability. Methods: 50 volunteers with COPD, mostly men (74%), with 73.1 ± 8.9 years of age, FEV1 of 52.3 ± 14.5% of predicted and FEV1 / FVC of 56.2 ± 8.6% of predicted responded to PGI, to the Saint George Respiratory Questionnaire (SGRQ) and to perform Glittre Activities of Daily Living test (Glittre ADL). Objective: To translate, adapt and validate the Patient Generated Index (PGI) for Brazilians with chronic obstructive pulmonary disease (COPD).
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