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Updated: Aug 19, 2026

Breath Collection from Children for Disease Biomarker Discovery
Published on: February 14, 2019
Day care center characteristics and children's respiratory health
P Nafstad1, J J K Jaakkola, A Skrondal
1Department of General Practice and Community Medicine, The Medical Faculty, University of Oslo, Oslo, Norway. per.nafstad@samfunnsmed.uio.no
Insights
This study found no link between day care center dampness and respiratory issues in young children. Further research is needed to understand potential health effects and improve exposure assessment methods.
Area of Science:
- Environmental Health
- Pediatric Health
- Epidemiology
Background:
- Day care centers are environments where children can be exposed to potential health hazards.
- Building characteristics, such as dampness, may influence children's respiratory health.
Purpose of the Study:
- To investigate the association between dampness problems and building characteristics in day care centers and respiratory health outcomes in 3-5-year-old children.
- To assess the impact of ventilation types in day care centers on children's respiratory health.
Main Methods:
- A survey of 942 children aged 3-5 in Oslo, Norway, was linked with inspection data from 175 day care centers.
- Multiple logistic regression analysis was used to examine relationships between building exposures and respiratory symptoms/diseases.
Main Results:
- Dampness problems were present in 51% of the day care centers.
- No systematic association was found between dampness or ventilation type and specific respiratory symptoms or diseases.
- No clear effect of studied day care center exposures on children's respiratory health was identified.
Conclusions:
- Simple indicators of exposure, like dampness and ventilation, were not associated with respiratory health in young children attending Norwegian day care centers.
- The study highlights methodological challenges in assessing exposure and health outcomes for day care environments.
- Negative health effects of day care center exposures cannot be ruled out, necessitating further investigation with refined methodologies.
Unlabelled:
Day care centers provide an important exposure arena with potential harmful health effects for children. This study has linked health effect data from a survey among 942 3-5-year-old Oslo children with information on day care center characteristics collected during inspection of the 175 day care centers these children attended. The aim of the study was to estimate associations between dampness problems and other building characteristics and several respiratory health outcomes. Dampness problems (sign of molds, water leakage, damage to floor/wall) were observed in 51% of the day care centers. In multiple logistic regression analyses none of the studied symptoms and diseases (nightly cough, blocked or runny nose without common cold, wheeze, heavy breathing or chest tightness, the common cold, tonsillitis/pharyngitis, otitis media, bronchitis, pneumonia, asthma, and allergic rhinitis) were systematically associated with dampness problems or type of ventilation in day care centers. None of the studied indicators of day care center exposures were found to have a clear effect on day care children's respiratory health. Even so this study does not rule out negative health effects of day care center exposures. The study demonstrates that population-based studies of these relations are demanding with regard to assessment of exposure and health outcomes.
Practical Implications:
Simple and easy-to-register indicators of exposures like dampness problems and type of ventilation assessed in 175 day care centers were not related to respiratory health among 3-5-year-old Norwegian children attending the day care centers. The study does not rule out negative health effects of day care center exposures, but demonstrates methodological challenges needed to be addressed in studies of health effects of the day care environment.
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