Abstract
A very common questionnaire, used to evaluate the health status of Chronic Obstructive Pulmonary Disease (COPD) patients, COPD assessment test (CAT), was applied to finding correlations between the items of CAT and other tests used in the same category of COPD patients. A sample of 56 male COPD patients, aged between 51 and 74 years, mean 63.86 (�5.55), half of them receiving long-term oxygen therapy, using transparent, hypoallergenic plastic masks or nasal cannulas, answered to CAT mostly choosing single items, statistically significant correlated with the Hospital Anxiety and Depression Scale scores (HADs), like walking up hills and stairs (r = 0.412, p[ 0.01), doing activities at home (r = 0.329, p[ 0.01), confidence leaving my home (r = 0.409, p[ 0.001), sleep (r = 0.277, p[ 0.01), and energy (r = 0.387, p[ 0.01), but CAT item walking up hills and stairs correlated better to 6 min walking distance (6MWD) (r = -0.581, p[ 0.01). The most significant correlations were found between 3 items of CAT as walking up hills and stairs, limitations doing activities at home and confidence leaving home in a most powerful and depression scores and 6MWD.
Highlights
Results and discussionsA sample of 56 male patients with severe and very severe forms of Chronic Obstructive Pulmonary Disease (COPD), mean aged 63.86 (±5.55) years (limits between 51 and 74 years), had a median COPD assessment test (CAT) score of 26.00 (range 23.00-30.00)
A very common questionnaire, used to evaluate the health status of Chronic Obstructive Pulmonary Disease (COPD) patients, COPD assessment test (CAT), was applied to finding correlations between the items of CAT and other tests used in the same category of COPD patients
Quality of life is an important objective in the management of chronic obstructive pulmonary disease (COPD) that has been highlighted as a future research need [1]
Summary
A sample of 56 male patients with severe and very severe forms of COPD, mean aged 63.86 (±5.55) years (limits between 51 and 74 years), had a median CAT score of 26.00 (range 23.00-30.00). Anxiety and depression tended to be more severe at higher CAT scores, statistically significant differences being observed between score’s categories (One-way ANOVA test, F(1.54) = 19.89, p < 0.001, and F(1.54) = 15.55, p < 0.001, respectively). A severe decrease of physical activity capacity was found to be associated with higher CAT scores, differences between medium, high and ver y high CAT score levels being were statistically significant (One-way ANOVA test, F(1.54) = 6.19, p < 0.05) (table 2). Lung function parameters as FVC, FEV1, FEV1/FVC were poorly correlated with total CAT score, r = -0.105, p = 0.440; r = 0.237, p = 0.079; and r = -0.252, p = 0.060, respectively. The physical activity parameter 6MWT was statistically significant correlated with the total CAT score (r= -0.407, p< 0.01).
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