+The final multivariate logistic regression model included the following variables: country, social mixing, age, sex, area, kitchen location. *Only adults were questioned about their smoking habits.

NIAID Data Ecosystem20

Number of respiratory symptoms Frequency (n) and percentage (%) of responders reporting each respiratory symptom in the last 12 months.

呼吸系统症状流行病学

Number of respiratory symptoms Frequency (n) and percentage (%) of responders reporting each respiratory symptom in the last 12 months.

NIAID Data Ecosystem50

Observed (O) and expected (E) frequencies under the independence hypothesis considering risk factors.

独立性检验

风险因素关联分析

Observed (O) and expected (E) frequencies under the independence hypothesis considering risk factors.

Figshare2016-10-28 更新20

Respiratory symptoms observed among study subjects.

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