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. 2020 May 7;20:108. doi: 10.1186/s12874-020-00977-1

Table 2.

Number of levels in each categorical variable for the feature set small-set

AGE_DX BEHO3V DX_CONF GRADE LATERAL PRIMSITE SEQ_NUM SEX
BREAST 11 2 9 5 5 9 10 2
LYMYLEUK 12 1 9 5 7 - 14 2
RESPIR 12 2 8 5 6 - 11 2