|
pubmed:abstractText |
Although there is considerable evidence that the prevalence of childhood asthma has increased over the last decades, it is not clear if this trend is still ongoing. A study was undertaken to investigate whether previously observed trends in the prevalence of respiratory symptoms, physician visits, medication use, and absence from school in Dutch children aged 8-9 years persisted in 2001.
|
|
pubmed:affiliation |
Department of General Practice, Care and Public Health Research Institute, University of Maastricht, P O Box 616, 6200 Maastricht, The Netherlands. monique.mommers@epid.unimaas.nl
|
