Finding F-1768

“After adjustment, each additional smoker was associated with a 2% increase in PM2.5 concentrations in patio air (GMR (95% CI): 1.02 (1.00, 1.05), and a 4% increase in indoor air (GMR (95% CI): 1.04 (1.02, 1.05).”

Kaplan et al. Evaluation of Secondhand Smoke Using PM2.5 and Observations in a Random Stratified Sample in Hospitality Venues from 12 Cities (2019). International journal of environmental research and public health. Page 1. CKB 7507

Structure

Source: Tobacco smoke (secondhand smoke)
Factor: Particulate matter (PM₂.₅ and PM₁₀)
Setting: hospitality venue
Study design: measurement study of hospitality venues with indoor smoking bans: fine particulate matter measured indoors, outdoors and on the patio of each venue, with the number of smokers counted by observation (class 4)
Effect: ratio 1.04 (1.02–1.05) per 1
Caveat: a geometric mean ratio per additional smoker observed in the venue

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.