Research Article
An Intelligent System Approach for Asthma Prediction in Symptomatic Preschool Children
Table 2
Encoding of some prognostic factors.
| Prognostic factor | Coding |
| Sex | 0 (Male) | 1 (Female) | | | | | Residence | 0 (Urban) | 1 (Semiurban) | 2 (Rural) | | | | Season of the symptoms | 0 (None) | 1 (Winter) | 2 (Autumn) | 3 (Spring) | 4 (Summer) | 5 (>2 Seasons) | Type of heating | 0 (Central heating) | 1 (Wood stove) | 2 (Oil stove) | 3 (Fireplace) | 4 (Central heating + Fireplace) | | Pregnancy duration in weeks | 0 (<37) | 1 (37-38) | 2 (>38) | | | | Allergens | 0 (0) | 1 (3.5–6 mm) | 2 (>6 mm) | | | |
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