Table 4.

PFC scores for the categorical features in the training set. The best performances are highlighted in bold

Features	Imputation methods
	Amelia II	MICE	missForest	k-RN	wk-NN	k-RN	wk-NN MI
				k=10	k=10	k=20	k=20
sex	0.4859	0.4416	0.4463	0.5160	0.3974	0.4831	0.3823
familiality	0.1646	0.1268	0.1372	0.0842	0.0823	0.0842	0.0738
genetics	0.3310	0.1781	0.1751	0.0956	0.0895	0.0956	0.0815
FTD	0.3295	0.2642	0.3565	0.2060	0.2003	0.1960	0.1903
onset site	0.2957	0.1516	0.1403	0.3672	0.1017	0.3484	0.0800
NIV	0.1111	0.0556	0.0537	0.0518	0.0480	0.0518	0.0235
PEG	0.0948	0.0150	0.0208	0.0069	0.0069	0.0069	0.0069
Average	0.2589	0.1761	0.1900	0.1897	0.1323	0.1809	0.1198