Table 1 Features of the models used in this study. “V” represents that a specific feature was used in a specific model

Age

V

V

V

Gender

V

V

V

Socioeconomic scores

V

V

V

Country of origin

V

Year of immigration

V

Vaccination indicator in the previous season

V

Vaccination rank in the three previous seasons

V

V

Number of respiratory diagnoses in the three previous seasons

V

Cumulative hospitalized days in the three previous seasons (hospitalizations of any reason)

V

Number of encounters with the healthcare system in the three previous seasons (encounters of any reason)

V

Number of prescribed medications in the three previous seasons (any kind of medications)

V

Chronic illness in the three previous seasons

V

Vaccination proportion at the patient’s clinic, in the three previous seasons

V

V

V

Average Vaccination rank of the patient’s family in the three previous seasons

V