Finding F-1333

“In addition, of the total number of children exposed to secondhand smoke, 19.1% of them had smaller than average and very small size at birth.”

Yaya Association between household second-hand smoke and low birth weight in sub-Saharan Africa… (2025). PLoS One. Page 4. CKB 1391

Structure

Factor: Tobacco smoke (secondhand smoke)
Population: mothers and their most recent births
Setting: home
Study design: analysis of Demographic and Health Survey data from sub-Saharan Africa: household second-hand smoke reported by the mother, against the birth weight and the perceived size at birth of her most recent child (class 4)
Effect: prevalence 19.1
Caveat: reported by the mother, not measured

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.