Finding F-1437

“In Phase II, 90% of the measured dorm rooms had an out-to indoor air flow rate less than the Chinese standard of 8.3 L/s per person during the heating season.”

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: share-above 90 per 8.3 %
Caveat: measured in the heating season, when windows stay shut

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.