Finding F-1436

“A mean ventilation rate of 5 L/(sNperson) in dorm buildings was associated with 5% of self reported common cold $6 times, compared to 35% at 1 L/(sNperson).”

In China, Students in Crowded Dormitories with a Low Ventilation Rate Have More Common Colds: Evidence for (2011). PloS one. Page 1. CKB 6732

Structure

Factor: Ventilation
Outcome: Respiratory infections
Population: college students
Setting: dormitory, CN
Study design: two-phase study of college dormitories in China: self-reported common cold infections of the students in Phase I and measured outdoor-to-indoor air flow rates per person in the dorm rooms during the heating season in Phase II, related to each other as a dose-response (class 4)
Effect: prevalence 35 per 1 %
Caveat: the ventilation rate is the building mean, the infections are self-reported

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.