Is daily exposure to ozone associated with respiratory morbidity and lung function in a representative sample of schoolchildren? Results from a panel study in Greece
| Autor: | Maria Sionidou, Klea Katsouyanni, Georgios Grivas, Evangelia Samoli, Lambrini Veneti, Ioannis Tsolakoglou, Sophia Rodopoulou, Despoina Papakosta, Anna Karakatsani, Konstantina Dimakopoulou, Dimitris Evangelopoulos, Ioanna Krasanaki |
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| Rok vydání: | 2016 |
| Předmět: |
Male
Pediatrics medicine.medical_specialty Epidemiology Respiratory Tract Diseases Population Peak Expiratory Flow Rate 010501 environmental sciences Toxicology 01 natural sciences Odds 03 medical and health sciences Ozone 0302 clinical medicine Air Pollution Absenteeism medicine Humans Longitudinal Studies Child education Nose 0105 earth and related environmental sciences Asthma Air Pollutants education.field_of_study Greece business.industry Confounding Public Health Environmental and Occupational Health Odds ratio medicine.disease Pollution Confidence interval Logistic Models medicine.anatomical_structure Cough 030228 respiratory system Female Nasal Obstruction business Environmental Monitoring |
| Zdroj: | Journal of Exposure Science & Environmental Epidemiology. 27:346-351 |
| ISSN: | 1559-064X 1559-0631 |
| Popis: | Previous time series or panel studies of asthmatics have reported respiratory health effects following short-term exposure to ozone (O3). We followed 186 children aged 10 years old in Athens and Thessaloniki, Greece for 5 weeks during the academic year 2013–2014 and recorded daily their respiratory symptoms, absenteeism and peak expiratory flow (PEF). We applied mixed models controlling for various possible confounders to investigate the daily associations between O3 exposure — derived from weekly personal and fixed school site measurements calibrated using daily values of the fixed monitoring site nearest to the child’s school location — and PEF, presence of any symptom, cough and stuffy nose, as well as absenteeism. We tested the robustness of our findings to varying modeling assumptions and confounders and investigated effect modification patterns by medication use, time spent outdoors and prevalence of asthma. A 10 μg/m3 increase in O3 personal exposure was associated with increased odds of any symptom (odds ratio (OR): 1.19, 95% confidence interval (CI): 0.98, 1.44), largely attributed to the increase in the odds of stuffy nose (OR: 1.23, 95% CI: 1.00, 1.51). PEF and absenteeism were not related to O3 exposure. Our results were robust to several sensitivity analyses. Effects were modified by medication use as presence of symptoms but also decreases in PEF were mainly reported among non-users, while our effect estimates were not driven by the asthmatic subgroup of children. Our findings indicate that short-term O3 exposure may be associated with respiratory symptoms extending previously reported results for asthmatics to the general population. |
| Databáze: | OpenAIRE |
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