Author: Almagro, Pere; Hernandez, Carme; Martinez-Cambor, Pable; Tresserras, Ricard; Escarrabill, Joan
Title: Seasonality, ambient temperatures and hospitalizations for acute exacerbation of COPD: a population-based study in a metropolitan area Document date: 2015_5_8
ID: 7qw4xsaa_6
Snippet: Temperature and hospitalizations for COPD pollution levels were extracted from the air quality database of Catalonia using the Catalonian Air Quality Index. This index is based on daily levels of carbon monoxide (CO), nitrogen dioxide (NO 2 ), sulfur dioxide (SO 2 ), ozone (O 3 ), and particulate matter (PM 10 ) emissions. Values obtained in this index are expressed as a continuous score ranging from below -50 to 100. Stratified air quality value.....
Document: Temperature and hospitalizations for COPD pollution levels were extracted from the air quality database of Catalonia using the Catalonian Air Quality Index. This index is based on daily levels of carbon monoxide (CO), nitrogen dioxide (NO 2 ), sulfur dioxide (SO 2 ), ozone (O 3 ), and particulate matter (PM 10 ) emissions. Values obtained in this index are expressed as a continuous score ranging from below -50 to 100. Stratified air quality values oscillate between less than -50 (very poor air quality), -49 to 0 (poor), 1-25 (low), 26-50 (acceptable), 51-75 (satisfactory), and 76-100 (excellent). That is, a lower score corresponds with increased air pollution 17 (see Table S1 and Figure S1 ). For the statistical analysis, rates of both respiratory infections and air quality were also studied using weekly mean values.
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