Finding · as stated by the study, recorded by Coridum · status verified-machine
Finding F-1391
“There was a statistically significant correlation between the incidence of asthma and PNC as well as asthma and PMC in the particle size range of 0.3-1 μm (r=0.66, p=0.028) and (r=0.71, p=0.017) respectively.”
Structure
- Factor
- Ultrafine particles (UFP)
- Outcome
- Asthma
- Population
- children aged 6 to 11
- Setting
- classroom
- Study design
- study in schools: particle number and particle mass concentrations in the size range 0.3 to 10 micrometres were measured with an optical particle sizer in classrooms during lessons, and the annual incidence of doctor-diagnosed asthma of the 3,638 children aged 6 to 11 was taken from medical records for each school (class 4)
- Effect
- other 0.66
- Caveat
- a correlation across schools, not across children; no significant correlation was found in the 0.3 to 2.5 and 0.3 to 10 micrometre ranges
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.