Parental Smoking and Lung Function in Children
| Autor: | Heike Luttmann-Gibson, Frantiska Hruba, Manfred Neuberger, Hanns Moshammer, Peter Rudnai, S Pattenden, Gerard Hoek, Ulrike Gehring, Renata Zlotkowska, Tony Fletcher, T Antova, Hana Šlachtová |
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| Rok vydání: | 2006 |
| Předmět: |
Male
Parents Pulmonary and Respiratory Medicine Spirometry Pediatrics medicine.medical_specialty Passive smoking Respiratory Tract Diseases Vital Capacity Population Critical Care and Intensive Care Medicine medicine.disease_cause Logistic regression Pregnancy Surveys and Questionnaires Intensive care medicine Humans Child education Asthma education.field_of_study medicine.diagnostic_test business.industry Infant medicine.disease Europe Logistic Models El Niño Prenatal Exposure Delayed Effects North America Linear Models Female Tobacco Smoke Pollution Pulmonary Ventilation business Demography |
| Zdroj: | American Journal of Respiratory and Critical Care Medicine. 173:1255-1263 |
| ISSN: | 1535-4970 1073-449X |
| DOI: | 10.1164/rccm.200510-1552oc |
| Popis: | Both prenatal and postnatal passive smoking have been linked with respiratory symptoms and asthma in childhood. Their differential contributions to lung function growth in the general children's population are less clear.To study the relative impact of pre- and postnatal exposure on respiratory functions of primary school children in a wide range of geographic settings, we analyzed flow and volume data of more than 20,000 children (aged 6-12 yr) from nine countries in Europe and North America.Exposure information had been obtained by comparable questionnaires, and spirometry followed a protocol of the American Thoracic Society/European Respiratory Society. Linear and logistic regressions were used, controlling for individual risk factors and study area. Heterogeneity between study-specific results and mean effects were estimated using meta-analytic tools.Smoking during pregnancy was associated with decreases in lung function parameters between -1% (FEV1) and -6% maximal expiratory flow at 25% of vital capacity left (MEF25). A 4% lower maximal midexpiratory flow (MMEF) corresponded to a 40% increase in the risk of poor lung function (MMEF75% of expected). Associations with current passive smoking were weaker though still measurable, with effects ranging from -0.5% (FEV1) to -2% maximal expiratory flow (MEF50).Considering the high number of children exposed to maternal smoking in utero and the even higher number exposed to passive smoking after birth, this risk factor for reduced lung function growth remains a serious pediatric and public health issue. |
| Databáze: | OpenAIRE |
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