Table 1: Prognostic factors.

CategoryPrognostic factors

Demographicage, sex, ethnicity#, height, weight, waist’s perimeter, residence#
Wheezing episodesuntil 3rd year, between 3rd and 5th year
Symptomswheezing*, cough*, allergic rhinitis*, runny nose*, congestion*, eczema*, food allergy*, pharmaceutical allergy*, allergic conjunctivitis*, dyspnea*, seasonal symptoms#
Parental historyasthma*
House conditionsnumber of family members, pets*, type of heating#
Pharmaceutical therapybronchodilators, corticosteroids inhaled*,
corticosteroids per os*, antileukotriene*, antihistamine*
Breathing testsFEV1%, FEF25/75%
TestsIg E U/Ml
Allergens , , olive#, pellitory#, graminaceae#, pine#, cypress#, cat#, dog#,
Neonatal periodpregnancy duration, breastfeeding duration#, smoking during pregnancy*
Asthmatreatment*

*The encoding is binary: yes (1) or no (0).
#The encoding is shown in Table 2.
All other factors are numerical.