Table 1 Significant associations with RF, BRT, LASSO and UFMLR

Covariates

Pre-seasonal HAI titer (log)

0.004

0.003

0.001

0.001

0.001

0.002

0.002

0.001

History of asthma^b

0.009

0.012

0.001

0.001

0.009

0.019

0.004

Professional activity involves contact with ill people^b

0.009

0.023

0.008

0.001

0.001

Age (years)

0.004

0.001

0.001

0.001

Daily frequency of hand washing (with soap or hand sanitizer) ≥ 5^b

0.014

0.023

0.019

0.008

Always or often covers mouth while coughing or sneezing^b

0.033

0.023

0.003

0.001

“Craftsman, shopkeeper, chief executive officer” (socio-professional group)^b

0.036

0.006

0.047

History of chemotherapy^b

0.048

0.021

0.027

Average living room temperature (°C)

0.001

0.001

0.031

0.047

0.002

Presence of a dishwasher in the kitchen^b

0.002

0.001

0.048

0.007

0.007

Sex = male^b

0.048

Professional activity is primarily outdoors^b

0.045

Age < 15 years^b

0.016

Any respiratory disease^b

0.030

Number of children (<15 years) in the household (n)

0.004

Body mass index (kg/m2)

0.032

Proportion of inhabitants > 15 years without a diploma (in IRIS zoneⁱ)

0.024

Proportion of habitations rented by inhabitants (in IRIS zoneⁱ)

0.023

Proportion of habitations owned by inhabitants (in IRIS zoneⁱ)

0.049

Habitation = house^b

0.016

Duration of contacts with subjects aged between 60 and 99 years (log (min))

0.006

0.023

0.019

Number of subjects in the household (n)

0.002

0.002

Kitchen surface area per subject (m2)

0.005

0.002

Cardiac arrhythmia^b

0.021

History of radiotherapy^b

0.016

Daily consumption of green tea (n)

0.040

Number of birds inside habitation (n)

0.030

Number of rooms per subject in habitation (n)

0.009

Number of children in the bedroom (n)

0.010

Bedroom windows face: garden^b

0.010

Duration of contacts at home (log (min))

0.029

Longitude of the habitation (degrees)

0.027

Latitude of the habitation (degrees)

0.028

Proportion of “farmer, primary sector” (socio-professional group) (in IRIS zoneⁱ)

0.004

0.005

Kitchen filtration of area^b

0.021

0.034

Tiles flooring in the kitchen^b

0.015

0.029

Agricultural land near habitation^b

0.048