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Seasonality, ambient temperatures and hospitalizations for acute exacerbation of COPD: A population-based study in a metropolitan area
dc.contributor.author | Almagro P. | |
dc.contributor.author | Hernandez C. | |
dc.contributor.author | Martinez-Cambor P. | |
dc.contributor.author | Tresserras R. | |
dc.contributor.author | Escarrabill J. | |
dc.date.accessioned | 2020-09-02T22:11:07Z | |
dc.date.available | 2020-09-02T22:11:07Z | |
dc.date.issued | 2015 | |
dc.identifier | 10.2147/COPD.S75710 | |
dc.identifier.citation | 10, , 899-908 | |
dc.identifier.issn | 11769106 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12728/3530 | |
dc.description | Background: Excluding the tropics, exacerbations of chronic obstructive pulmonary disease (COPD) are more frequent in winter. However, studies that directly relate hospitalizations for exacerbation of COPD to ambient temperature are lacking. The aim of this study was to assess the influence of temperature on the number of hospitalizations for COPD. Methods: This was a population-based study in a metropolitan area. All hospital discharges for acute exacerbation of COPD during 2009 in Barcelona and its metropolitan area were analyzed. The relationship between the number of hospitalizations for COPD and the mean, minimum, and maximum temperatures alongside comorbidity, humidity, influenza rate, and environmental pollution were studied. Results: A total of 9,804 hospitalization discharges coded with COPD exacerbation as a primary diagnosis were included; 75.4% of cases were male with a mean age of 74.9±10.5 years and an average length of stay of 6.5±6.1 days. The highest number of admissions (3,644 [37.2%]) occurred during winter, followed by autumn with 2,367 (24.1%), spring with 2,347 (23.9%), and summer with 1,446 (14.7%; P<0.001). The maximum, minimum, and mean temperatures were associated similarly with the number of hospitalizations. On average, we found that for each degree Celsius decrease in mean weekly temperature, hospital admissions increased by 5.04% (r2=0.591; P<0.001). After adjustment for humidity, comorbidity, air pollution, and influenza-like illness, only mean temperatures retained statistical significance, with a mean increase of 4.7% in weekly admissions for each degree Celsius of temperature (r2=0.599, P<0.001). Conclusion: Mean temperatures are closely and independently related to the number of hospitalizations for COPD. © 2015 Almagro et al. | |
dc.language.iso | en | |
dc.publisher | Dove Medical Press Ltd. | |
dc.subject | Chronic obstructive pulmonary disease | |
dc.subject | Hospitalization | |
dc.subject | Humidity | |
dc.subject | Pollution | |
dc.subject | Seasonality | |
dc.subject | aged | |
dc.subject | air pollution | |
dc.subject | Article | |
dc.subject | autumn | |
dc.subject | chronic obstructive lung disease | |
dc.subject | comorbidity | |
dc.subject | disease exacerbation | |
dc.subject | environmental temperature | |
dc.subject | female | |
dc.subject | flu like syndrome | |
dc.subject | hospital discharge | |
dc.subject | hospitalization | |
dc.subject | human | |
dc.subject | humidity | |
dc.subject | length of stay | |
dc.subject | major clinical study | |
dc.subject | male | |
dc.subject | population research | |
dc.subject | seasonal variation | |
dc.subject | Spain | |
dc.subject | spring | |
dc.subject | summer | |
dc.subject | winter | |
dc.subject | adverse effects | |
dc.subject | disease course | |
dc.subject | factual database | |
dc.subject | health | |
dc.subject | hospital admission | |
dc.subject | Influenza, Human | |
dc.subject | middle aged | |
dc.subject | Pulmonary Disease, Chronic Obstructive | |
dc.subject | risk factor | |
dc.subject | season | |
dc.subject | temperature | |
dc.subject | time factor | |
dc.subject | very elderly | |
dc.subject | Aged | |
dc.subject | Aged, 80 and over | |
dc.subject | Air Pollution | |
dc.subject | Comorbidity | |
dc.subject | Databases, Factual | |
dc.subject | Disease Progression | |
dc.subject | Female | |
dc.subject | Humans | |
dc.subject | Humidity | |
dc.subject | Influenza, Human | |
dc.subject | Male | |
dc.subject | Middle Aged | |
dc.subject | Patient Admission | |
dc.subject | Pulmonary Disease, Chronic Obstructive | |
dc.subject | Risk Factors | |
dc.subject | Seasons | |
dc.subject | Spain | |
dc.subject | Temperature | |
dc.subject | Time Factors | |
dc.subject | Urban Health | |
dc.title | Seasonality, ambient temperatures and hospitalizations for acute exacerbation of COPD: A population-based study in a metropolitan area | |
dc.type | Article |