Finding F-0883

“The overall mean concentration of CO in expired breath and estimated COHb percentage were 4.09 ± 4.0 ppm and 1.29 ± 0.64, respectively.”

Pathirathna Impact of solid fuel usage on respiratory symptoms among reproductive aged women: a cross-sectional study in Sri Lanka (2022). BMC public health. Page 6. CKB 8869

Structure

Factor: Carbon monoxide (CO)
Outcome: Exhaled carbon monoxide
Population: reproductive-aged women
Setting: home, LK
Study design: descriptive cross-sectional study among 403 reproductive-aged women (15 to 49 years) in the Central Province of Sri Lanka: cooking fuel and respiratory symptoms from an interviewer-administered questionnaire, exposure assessed with a breath carbon-monoxide monitor and carboxyhaemoglobin estimated from it, with logistic regression adjusted for confounders (class 4)
Effect: mean 4.09
Sample: 403 participants
Caveat: a breath measurement in the woman, not a room concentration

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