Finding F-0829

“At enrollment, the study group women had mean CO levels of 17.8% (95% CI 17.1-18.5), while the controls had mean CO levels of 17.5% (95% CI 16.7-18.3).”

Prospective Cohort Study on the Effect of an Intervention to Reduce Household Air Pollution Among Sudanese (2021). Journal of health & pollution. Page 4. CKB 8252

Structure

Source: Biomass fuel
Factor: Carbon monoxide (CO)
Population: women of the intervention group
Setting: home, SD (enrolment, 2016)
Study design: prospective cohort in Port Sudan, Sudan, 2016 to 2019: women who cooked indoors were offered a well-ventilated outdoor cooking shelter (rakoobah) and 24 weeks of household air pollution education, against a control group; carboxyhaemoglobin was measured by CO-oximetry in the women and in their children each year (class 3)
Effect: mean 17.8 (17.1–18.5)
Flags: implausible
Caveat: the paper calls this the CO level; it is carboxyhaemoglobin read by CO-oximetry, and a group mean this high sits in the range of severe poisoning, which pulse CO-oximetry is known to overstate - taken as printed

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.