Document Detail


Climatic factors and lower respiratory tract infection due to respiratory syncytial virus in hospitalised infants in northern Spain.
MedLine Citation:
PMID:  15921045     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To analyse the influence of climatic factors on the number of hospitalised infants with respiratory syncytial virus (RSV) per week. METHODS: A retrospective observational case-control study was designed enrolling infants under 2 years of age, admitted to hospital between October 1995 and June 2000 with lower respiratory tract infection due to RSV. Climatic and seasonal data were included. The week variable was used as the study unit: weeks with more than one admission for the case group and weeks without admissions for the control group. The total number of weeks excluding summer months, from June to September, was 174. RESULTS: A total of 167 infants were admitted to hospital with lower respiratory tract infection due to RSV with a peak in January and February. There was 82 weeks with one or more admissions (case group) and 92 without admissions (control group). The case group demonstrated lower levels of humidity (absolute: 5.6 +/- 1.5 vs. 6.5 +/- 1.5; p < 0.001) and lower temperature (ground level: 0.4 +/- 3.2 vs. 2.2 +/- 3.5; p < 0.001). When climatic factors were analysed in a logistic regression model, absolute humidity (p < 0.001) was an independent variable associated with a higher risk of infection. CONCLUSIONS: Low absolute humidity was independently associated with hospital admission of infants with lower respiratory tract infection due to RSV.
Authors:
Santiago Lapeña; Mariá Belén Robles; Leticia Castañón; Juan Pablo Martínez; Sofiá Reguero; María Paz Alonso; Isabel Fernández
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of epidemiology     Volume:  20     ISSN:  0393-2990     ISO Abbreviation:  Eur. J. Epidemiol.     Publication Date:  2005  
Date Detail:
Created Date:  2005-05-30     Completed Date:  2005-07-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508062     Medline TA:  Eur J Epidemiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  271-6     Citation Subset:  IM    
Affiliation:
Pediatric Service, Microbiological Service, Hospital of Leon, Leon, Spain. slapena@hleo.sacyl.es
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MeSH Terms
Descriptor/Qualifier:
Case-Control Studies
Climate*
Female
Hospitalization
Humans
Infant
Infant, Newborn
Longitudinal Studies
Male
Respiratory Syncytial Virus Infections / epidemiology*
Respiratory Syncytial Viruses
Retrospective Studies
Risk Factors
Spain / epidemiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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