Finding F-0747

“After controlling for key variables using mixed effects modeling, cooking increased COHb by 32% (β1 = 0.281, p < 0.001, Model 1) and was the only statistically significant driver of COHb apart from smoking.”

Powers Chronic household air pollution and exposure patterns among Himalayan nomads… (2024). Journal of exposure science & environmental epidemiology. Page 6. CKB 7948

Structure

Source: Solid fuel
Factor: Carbon monoxide (CO)
Population: heads of nomadic households
Setting: nomadic home on the Himalayan Plateau at 3500 m, CN
Study design: field study among Himalayan nomadic households in Qinghai, China, at 3500 m: household carbon monoxide monitored in 100 homes during cooking and during heating-only periods, with carboxyhaemoglobin as an exposure biomarker in 100 male and 100 female heads of household over three days, analysed with linear mixed-effects models against activity patterns (class 4)
Effect: difference 32
Sample: 200 participants
Caveat: a percentage increase in the biomarker, not in a concentration

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