Finding F-1438

“When ventilation rate is below 6 L/s per person, the common cold incidence in dorm rooms with average 4 occupants increased from 10% to 12%.”

In China, Students in Crowded Dormitories with a Low Ventilation Rate Have More Common Colds: Evidence for (2011). PloS one. Page 5. 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: difference 2
Caveat: a modelled dose-response step read off the study's own fitted relationship

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.