Finding F-0282

“When ambient PM2.5, temperature, and RH were controlled for, an increase in formaldehyde by 10 ppb was associated with 2.5% increase in AD symptoms as a whole, although such an increase in AD symptoms was not statistically significant.”

Harmful Effect of Indoor Formaldehyde on Atopic Dermatitis in Children A Longitudinal… (2021). Allergy, asthma & immunology research. Page 6. CKB 5478

Structure

Factor: Formaldehyde (CH₂O)
Outcome: Atopic dermatitis symptoms
Population: children with moderate-to-severe atopic dermatitis
Setting: home, KR
Study design: longitudinal (panel) study of children with moderate-to-severe atopic dermatitis in Seoul: real-time indoor formaldehyde monitoring at home and daily symptom scores (4,789 person-days), generalized linear mixed models adjusted for ambient PM2.5, temperature and relative humidity (class 3)
Effect: difference 2.5 per 10 %
Caveat: not statistically significant overall; significant in spring and summer subgroups

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.