Finding F-0347

“No significant associations were observed for PM2.5 , PM10 , or HCHO exposure.”

Wang et al. Spatiotemporal Patterns of Indoor Air Pollution and Its Association with Depressive Symptoms Among Schoolchildren in China (2025). Page 9. CKB 1094

Structure

Factor: Formaldehyde (CH₂O)
Outcome: Depression
Population: schoolchildren and adolescents (grades 3-4 and 7)
Setting: classroom and bedroom, CN
Study design: cross-sectional study of schoolchildren and adolescents in China with real-time portable monitoring of PM2.5, PM10, CO2, formaldehyde, TVOC, temperature and humidity in classrooms and bedrooms on weekdays and weekends, depressive symptoms by questionnaire, single-pollutant logistic models (class 4)
Caveat: no effect size in the sentence; depressive symptoms by questionnaire, filed under depression

A Finding records what one published document states, verbatim and with its page. It is not a conclusion of Coridum; see the Claims that build on it.