Table 3. Removing features in order to determine the effectiveness of each one.

	Fa1	F2	F3	F4	F5	F6	F7	F8	F9
Removing Feature	Interior housing condition	Age	Sex	Education	Duration of lesion	Number of lesion	Location of lesion	Treatment course	History of chronic diseases
The classification accuracy (%)	78.5	82	84.3	76.2	66.9	83	83.1	80.2	74

^a Feature,

^b The classification accuracy of total data (%) with the remaining features.