A comparison between occupants’ and inspectors’ reports on home dampness and their association with the health of children: The ALLHOME study

There is some discussion concerning the methodology to be used in order to obtain health-relevant information regarding moisture-related problems in homes (dampness). Occupants’ reports, inspectors’ observations and physical measurements are often used methods. In the current study, data on dwelling dampness and characteristics as reported by parents of 216 pre-school children (the cross-sectional questionnaire study ALLHOME-1) was compared with the information collected by non-professional dwelling inspectors in a nested case–control study (the ALLHOME-2 study). The study took place in the cities of Burgas and Sofia in Bulgaria. The inspectors reported less visible mould, but more damp stains and a mouldy odour than the parents. Exposure to dampness, as reported by parents, was significantly associated with airways, nose and/or skin symptoms (case status) among children, while no association was found between inspectors’ observations on dampness and children's health. Parental reports on housing characteristics such as type of house, residential situation, and type of flooring material matched with those identified by the inspectors and therefore can be used as a reliable source of information in studies on indoor environmental exposure and health. With regard to dampness, parental reports seem to be more health relevant than inspectors reports.