How to Improve Quality of Life in COPD Patients?

Life quality of people with COPD can be improved when they live in areas where there is less air pollution and more green or blue spaces.

Living in places where there is less air pollution and more green or blue spaces improves the quality of life in patients with chronic obstructive pulmonary disease (COPD), reveals a new study.

The new study was led by the Barcelona //Institute for Global Health (ISGlobal), an institution supported by ”la Caixa” Foundation.

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‘There is a need to limit air pollution in cities and redefine urban policies that improve the quality of life of the great number of people who live with respiratory diseases across the world.’

The findings highlight the need for implementing urban policies that improve the life quality of a great number of people living with respiratory diseases across the world.

The health-related quality of life has become one of the most relevant parameters to measure the progression of chronic obstructive pulmonary disease (COPD).

“We know that several clinical and psychological factors can affect this parameter, but little is known on the effect of environmental factors,” explains Judith Garcia-Aymerich, ISGlobal researcher. Thus, Garcia-Aymerich and her team assessed, for the first time, the association between health-related quality of life and exposure to different environmental factors in over 400 COPD patients with different levels of disease severity, from moderate to high.

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The patients, all of them residing in Barcelona, underwent a COPD assessment test and answered a clinical questionnaire.

The research team determined the residential exposure of each patient to air pollutants (NO2, PM2.5 and PM10 fine particles, and PM2.5 absorbance), traffic noise, land surface temperatures, and distance to green or blue (water) spaces.

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They found that exposure to high levels of NO2 and PM2.5 absorbance (an indicator of black carbon emanating from combustion) were associated with worse assessment and mental health questionnaire scores.

“This might be explained by the restorative effect of blue and green spaces, although it could also be related to the fact that these spaces encourage greater physical activity,” says Subhabrata Moitra, first author of the study.

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The authors acknowledge that, being a cross-sectional study rather than a longitudinal one, they cannot demonstrate causality, and that further studies are needed to better understand the contribution of each pollutant.

“However, this study, performed for the first time on a Mediterranean population, provides evidence that air pollutants (particularly NO2 and black carbon) and the distance to green or blue spaces negatively affects the health-related quality of life in COPD patients,” says Garcia-Aymerich.

These results can help clinicians to provide recommendations that improve the quality of life of their COPD patients, for example by avoiding traffic zones or being close to blue and green spaces. They also underline the need to limit air pollution in cities and redefine urban policies that improve the quality of life of the great number of people who live with respiratory diseases across the world.

These findings are published shortly before the celebration of the European Respiratory Society Congress 2021.

Source-Eurekalert