کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5724943 | 1609435 | 2017 | 8 صفحه PDF | دانلود رایگان |
- Characteristics of COPD patients with increasing CAT scores within 3 years was investigated.
- Patients who deteriorated CAT scores were older, had lower %FEV1, and more severe emphysema.
- Baseline CAT value was not a determinant of subsequent changes in the CAT score.
- Longitudinal changes in the CAT score were positively correlated with those in the SGRQ score.
BackgroundThe chronic obstructive pulmonary disease (COPD) Assessment Test (CAT) is a subjective measure of quality of life. The aim of this study was to examine the characteristics of COPD patients with increasing CAT scores within 3 years.MethodsKeio University and its affiliate hospitals conducted an observational COPD cohort study over 3 years. St. George's Respiratory Questionnaire (SGRQ) and CAT were completed at baseline and annually thereafter. Patients who had at least 3 CAT scores were included (n = 315). The ÎCAT score/year and ÎSGRQ score/year were calculated by the slope between each of the measures and the date of measurement.ResultsThe median ÎCAT score/year was 0.4, and ÎCAT score/year was significantly correlated with ÎSGRQ total score/year. Using an annual cut-off CAT score of +2 points, patients who deteriorated (n = 79) were older, had lower %FEV1, and more severe emphysema on computed tomography scan at baseline than patients who did not deteriorate. The baseline value was not a determinant of subsequent changes in the CAT score. Longitudinal changes in the CAT score were positively correlated with those in the SGRQ score.ConclusionsOld age and severe COPD, not the CAT score at one time point, predicted worsening quality of life.
Journal: Respiratory Medicine - Volume 131, October 2017, Pages 101-108