2021 Yes https://onlinelibrary.wiley.com/doi/full/10.1111/ina.12836#:~:text=Similar%20associations%20were%20seen%20in,for%20many%20indoor%20air%20contaminants. Selinheimo, Sanna Europe Observational Modeling Students Other Elementary (K-5) In the school survey, parent's own symptoms increased strongly their reporting of their children's symptoms at school (aOR 4.0, 95% CI 2.7–6.0 for parents experiencing a lot of symptoms) and also symptoms reported by the child itself (aOR 2.2, 95% CI 1.5–3.1). Similar, but slightly weaker associations were seen with parental IEQ-related health worries. Results remained unchanged when adjusted for the IEQ of school buildings or parental and children's allergic diseases. Similar associations were seen in the national survey between parent's symptoms at work and child's symptoms at school.