CO2 Concentration in Day Care Centres is Related to Wheezing in Attending Children
Main Author: | |
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Publication Date: | 2014 |
Other Authors: | , , , , , , , , , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | http://hdl.handle.net/10400.17/1919 |
Summary: | Poor ventilation at day care centres (DCCs) was already reported, although its effects on attending children are not clear. This study aimed to evaluate the association between wheezing in children and indoor CO2 (a ventilation surrogate marker) in DCC and to identify behaviours and building characteristics potentially related to CO2. In phase I, 45 DCCs from Lisbon and Oporto (Portugal) were selected through a proportional stratified random sampling. In phase II, 3 months later, 19 DCCs were further reassessed after cluster analysis for the greatest difference comparison. In both phases, children’s respiratory health was assessed by ISAAC-derived questionnaires. Indoor CO2 concentrations and building characteristics of the DCC were evaluated in both phases, using complementary methods. Mixed effect models were used to analyze the data. In phase I, which included 3,186 children (mean age 3.1±1.5 years), indoor CO2 concentration in the DCC rooms was associated with reported wheezing in the past 12months (27.5 %) (adjusted odds ratio (OR) for each increase of 200 ppm 1.04, 95 % CI 1:01 to 1:07). In phase II, the association in the subsample of 1,196 children seen in 19 out of the initial 45 DCCs was not significant (adjusted OR 1.02, 95 % CI 0.96 to 1.08). Indoor CO2 concentration was inversely associated with the practices of opening Windows and internal doors and with higher wind velocity. A positive trend was observed between CO2 and prevalence of reported asthma (4.7 %). Conclusion: Improved ventilation is needed to achieve a healthier indoor environment in DCC. |
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CO2 Concentration in Day Care Centres is Related to Wheezing in Attending ChildrenIndoor Air QualityChild Day Care CentersVentilationEnvironmental HealthChildHDE ALERHDE CINVPoor ventilation at day care centres (DCCs) was already reported, although its effects on attending children are not clear. This study aimed to evaluate the association between wheezing in children and indoor CO2 (a ventilation surrogate marker) in DCC and to identify behaviours and building characteristics potentially related to CO2. In phase I, 45 DCCs from Lisbon and Oporto (Portugal) were selected through a proportional stratified random sampling. In phase II, 3 months later, 19 DCCs were further reassessed after cluster analysis for the greatest difference comparison. In both phases, children’s respiratory health was assessed by ISAAC-derived questionnaires. Indoor CO2 concentrations and building characteristics of the DCC were evaluated in both phases, using complementary methods. Mixed effect models were used to analyze the data. In phase I, which included 3,186 children (mean age 3.1±1.5 years), indoor CO2 concentration in the DCC rooms was associated with reported wheezing in the past 12months (27.5 %) (adjusted odds ratio (OR) for each increase of 200 ppm 1.04, 95 % CI 1:01 to 1:07). In phase II, the association in the subsample of 1,196 children seen in 19 out of the initial 45 DCCs was not significant (adjusted OR 1.02, 95 % CI 0.96 to 1.08). Indoor CO2 concentration was inversely associated with the practices of opening Windows and internal doors and with higher wind velocity. A positive trend was observed between CO2 and prevalence of reported asthma (4.7 %). Conclusion: Improved ventilation is needed to achieve a healthier indoor environment in DCC.Springer-VerlagRepositório do Centro Hospitalar Universitário de Lisboa Central, EPECarreiro-Martins, PViegas, JPapoila, ALAelenei, DCaires, IAraújo-Martins, JGaspar-Marques, JCano, MMMendes, ASVirella, DRosado-Pinto, JLeiria-Pinto, PAnnesi-Maesano, INeuparth, N2014-10-15T11:02:50Z20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.17/1919engEur J Pediatr. 2014; 173:1041–1049info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-10T09:33:53Zoai:repositorio.chlc.min-saude.pt:10400.17/1919Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:19:18.839936Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
CO2 Concentration in Day Care Centres is Related to Wheezing in Attending Children |
title |
CO2 Concentration in Day Care Centres is Related to Wheezing in Attending Children |
spellingShingle |
CO2 Concentration in Day Care Centres is Related to Wheezing in Attending Children Carreiro-Martins, P Indoor Air Quality Child Day Care Centers Ventilation Environmental Health Child HDE ALER HDE CINV |
title_short |
CO2 Concentration in Day Care Centres is Related to Wheezing in Attending Children |
title_full |
CO2 Concentration in Day Care Centres is Related to Wheezing in Attending Children |
title_fullStr |
CO2 Concentration in Day Care Centres is Related to Wheezing in Attending Children |
title_full_unstemmed |
CO2 Concentration in Day Care Centres is Related to Wheezing in Attending Children |
title_sort |
CO2 Concentration in Day Care Centres is Related to Wheezing in Attending Children |
author |
Carreiro-Martins, P |
author_facet |
Carreiro-Martins, P Viegas, J Papoila, AL Aelenei, D Caires, I Araújo-Martins, J Gaspar-Marques, J Cano, MM Mendes, AS Virella, D Rosado-Pinto, J Leiria-Pinto, P Annesi-Maesano, I Neuparth, N |
author_role |
author |
author2 |
Viegas, J Papoila, AL Aelenei, D Caires, I Araújo-Martins, J Gaspar-Marques, J Cano, MM Mendes, AS Virella, D Rosado-Pinto, J Leiria-Pinto, P Annesi-Maesano, I Neuparth, N |
author2_role |
author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório do Centro Hospitalar Universitário de Lisboa Central, EPE |
dc.contributor.author.fl_str_mv |
Carreiro-Martins, P Viegas, J Papoila, AL Aelenei, D Caires, I Araújo-Martins, J Gaspar-Marques, J Cano, MM Mendes, AS Virella, D Rosado-Pinto, J Leiria-Pinto, P Annesi-Maesano, I Neuparth, N |
dc.subject.por.fl_str_mv |
Indoor Air Quality Child Day Care Centers Ventilation Environmental Health Child HDE ALER HDE CINV |
topic |
Indoor Air Quality Child Day Care Centers Ventilation Environmental Health Child HDE ALER HDE CINV |
description |
Poor ventilation at day care centres (DCCs) was already reported, although its effects on attending children are not clear. This study aimed to evaluate the association between wheezing in children and indoor CO2 (a ventilation surrogate marker) in DCC and to identify behaviours and building characteristics potentially related to CO2. In phase I, 45 DCCs from Lisbon and Oporto (Portugal) were selected through a proportional stratified random sampling. In phase II, 3 months later, 19 DCCs were further reassessed after cluster analysis for the greatest difference comparison. In both phases, children’s respiratory health was assessed by ISAAC-derived questionnaires. Indoor CO2 concentrations and building characteristics of the DCC were evaluated in both phases, using complementary methods. Mixed effect models were used to analyze the data. In phase I, which included 3,186 children (mean age 3.1±1.5 years), indoor CO2 concentration in the DCC rooms was associated with reported wheezing in the past 12months (27.5 %) (adjusted odds ratio (OR) for each increase of 200 ppm 1.04, 95 % CI 1:01 to 1:07). In phase II, the association in the subsample of 1,196 children seen in 19 out of the initial 45 DCCs was not significant (adjusted OR 1.02, 95 % CI 0.96 to 1.08). Indoor CO2 concentration was inversely associated with the practices of opening Windows and internal doors and with higher wind velocity. A positive trend was observed between CO2 and prevalence of reported asthma (4.7 %). Conclusion: Improved ventilation is needed to achieve a healthier indoor environment in DCC. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-10-15T11:02:50Z 2014 2014-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.17/1919 |
url |
http://hdl.handle.net/10400.17/1919 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Eur J Pediatr. 2014; 173:1041–1049 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer-Verlag |
publisher.none.fl_str_mv |
Springer-Verlag |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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