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Temperature, nitrogen dioxide, circulating respiratory viruses and acute upper respiratory infections among children in Taipei, Taiwan: A population-based study
OBJECTIVE: This study investigated whether outpatient visits of acute upper respiratory infections for children aged less than 15 years are associated with temperature, air pollutants and circulating respiratory viruses in Taipei, Taiwan, from 2003 to 2007. METHODS: Outpatient records for acute uppe...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier Inc.
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7127042/ https://www.ncbi.nlm.nih.gov/pubmed/23040210 http://dx.doi.org/10.1016/j.envres.2012.09.002 |
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author | Lin, Yu-Kai Chang, Chin-Kuo Chang, Shuenn-Chin Chen, Pei-Shih Lin, Chitsan Wang, Yu-Chun |
author_facet | Lin, Yu-Kai Chang, Chin-Kuo Chang, Shuenn-Chin Chen, Pei-Shih Lin, Chitsan Wang, Yu-Chun |
author_sort | Lin, Yu-Kai |
collection | PubMed |
description | OBJECTIVE: This study investigated whether outpatient visits of acute upper respiratory infections for children aged less than 15 years are associated with temperature, air pollutants and circulating respiratory viruses in Taipei, Taiwan, from 2003 to 2007. METHODS: Outpatient records for acute upper respiratory infections (ICD9 CM codes: 460, 462, 463,464, 465.9 and 487) in a randomly selected sample (n=39,766 children in 2005) was used to estimate the cumulative relative risks (RR) associated with average temperature lasting for 8 days (lag 0–7 days), air pollutants (NO(2), O(3) and PM(2.5)) lasting for 6 days (lag 0–5 days), and virus-specific positive isolation rate lasting for 11 days (lag 0–10 days) using distributed lag non-linear models after controlling for relative humidity, wind speed, day of week, holiday effects and long-term trend. RESULTS: Average temperature of 33 °C was associated with the lowest risk for outpatient visits of acute upper respiratory infections. Relative to 33 °C, cumulative 8-day RR was highest at 15 °C of ambient average temperature [RR=1.94; 95% confidence interval (CI): 1.78, 2.11]. With the first quartile as reference, cumulative 6-day RRs were 1.25 (95% CI: 1.21, 1.29) for NO(2), 1.04 (95% CI: 1.01, 1.06) for O(3), and 1.00 (95% CI: 0.98, 1.03) for PM(2.5) at the 95th percentile. Per-standard deviation (SD) increase of virus-specific isolation rate for influenza type A (SD=13.2%), type B (SD=8.76%), and adenoviruses (SD=5.25%) revealed statistical significance for overall 11-day RRs of 1.02 (95% CI: 1.01, 1.03), 1.05 (95% CI: 1.03, 1.06) and 1.04 (95% CI: 1.03, 1.05), respectively. CONCLUSIONS: Current study suggested a positive association between outpatient visits for acute upper respiratory infections and ambient environment factors, including average temperature, air pollutants, and circulating respiratory viruses. |
format | Online Article Text |
id | pubmed-7127042 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Elsevier Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-71270422020-04-06 Temperature, nitrogen dioxide, circulating respiratory viruses and acute upper respiratory infections among children in Taipei, Taiwan: A population-based study Lin, Yu-Kai Chang, Chin-Kuo Chang, Shuenn-Chin Chen, Pei-Shih Lin, Chitsan Wang, Yu-Chun Environ Res Article OBJECTIVE: This study investigated whether outpatient visits of acute upper respiratory infections for children aged less than 15 years are associated with temperature, air pollutants and circulating respiratory viruses in Taipei, Taiwan, from 2003 to 2007. METHODS: Outpatient records for acute upper respiratory infections (ICD9 CM codes: 460, 462, 463,464, 465.9 and 487) in a randomly selected sample (n=39,766 children in 2005) was used to estimate the cumulative relative risks (RR) associated with average temperature lasting for 8 days (lag 0–7 days), air pollutants (NO(2), O(3) and PM(2.5)) lasting for 6 days (lag 0–5 days), and virus-specific positive isolation rate lasting for 11 days (lag 0–10 days) using distributed lag non-linear models after controlling for relative humidity, wind speed, day of week, holiday effects and long-term trend. RESULTS: Average temperature of 33 °C was associated with the lowest risk for outpatient visits of acute upper respiratory infections. Relative to 33 °C, cumulative 8-day RR was highest at 15 °C of ambient average temperature [RR=1.94; 95% confidence interval (CI): 1.78, 2.11]. With the first quartile as reference, cumulative 6-day RRs were 1.25 (95% CI: 1.21, 1.29) for NO(2), 1.04 (95% CI: 1.01, 1.06) for O(3), and 1.00 (95% CI: 0.98, 1.03) for PM(2.5) at the 95th percentile. Per-standard deviation (SD) increase of virus-specific isolation rate for influenza type A (SD=13.2%), type B (SD=8.76%), and adenoviruses (SD=5.25%) revealed statistical significance for overall 11-day RRs of 1.02 (95% CI: 1.01, 1.03), 1.05 (95% CI: 1.03, 1.06) and 1.04 (95% CI: 1.03, 1.05), respectively. CONCLUSIONS: Current study suggested a positive association between outpatient visits for acute upper respiratory infections and ambient environment factors, including average temperature, air pollutants, and circulating respiratory viruses. Elsevier Inc. 2013-01 2012-10-04 /pmc/articles/PMC7127042/ /pubmed/23040210 http://dx.doi.org/10.1016/j.envres.2012.09.002 Text en Copyright © 2012 Elsevier Inc. All rights reserved. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. |
spellingShingle | Article Lin, Yu-Kai Chang, Chin-Kuo Chang, Shuenn-Chin Chen, Pei-Shih Lin, Chitsan Wang, Yu-Chun Temperature, nitrogen dioxide, circulating respiratory viruses and acute upper respiratory infections among children in Taipei, Taiwan: A population-based study |
title | Temperature, nitrogen dioxide, circulating respiratory viruses and acute upper respiratory infections among children in Taipei, Taiwan: A population-based study |
title_full | Temperature, nitrogen dioxide, circulating respiratory viruses and acute upper respiratory infections among children in Taipei, Taiwan: A population-based study |
title_fullStr | Temperature, nitrogen dioxide, circulating respiratory viruses and acute upper respiratory infections among children in Taipei, Taiwan: A population-based study |
title_full_unstemmed | Temperature, nitrogen dioxide, circulating respiratory viruses and acute upper respiratory infections among children in Taipei, Taiwan: A population-based study |
title_short | Temperature, nitrogen dioxide, circulating respiratory viruses and acute upper respiratory infections among children in Taipei, Taiwan: A population-based study |
title_sort | temperature, nitrogen dioxide, circulating respiratory viruses and acute upper respiratory infections among children in taipei, taiwan: a population-based study |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7127042/ https://www.ncbi.nlm.nih.gov/pubmed/23040210 http://dx.doi.org/10.1016/j.envres.2012.09.002 |
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