Table 4.

Summary of neuropsychological assessment

Domain/test	I Chemotherapy group (n = 22)		II Chemo- and radiotherapy group (n = 11)		III ALL control group (n = 12)		I vs III (Mann-Whitney U test)		II vs III (Mann-Whitney U test)		I vs II (Mann-Whitney U test)		Group interaction (Kruskal-Wallis test)
	Median	IQR	Median	IQR	Median	IQR	Z	p	Z	p	Z	p	Chi	p
IQ assessment
WISC-R	114.0	25.0	102.0	14.0	120	34.0	0.298	0.916	0.688	0.497	2.641	<0.001	0.987	0.844
Memory and attention
VCI	44.0	9.0	46.0	18.0	59.0	25.0	1.446	0.159	2.101	0.047	1.069	0.285	2.256	0.498
RAVLT learning	7.0	3.0	6.0	3.0	8.0	1.0	1.829	0.156	1.287	0.189	0.592	0.554	5.485	0.116
RAVLT interference	11.0	3.0	8.0	2.4	9.0	1.0	2.059	0.004	0.534	0.597	3.418	<0.001	17.589	<0.001
RAVLT recall	11.0	2.0	7.0	3.0	10.0	2.0	0.894	0.377	2.459	0.026	3.437	<0.001	7.598	0.017
BVRT	7.5	3.0	6.0	2.0	8.5	1.0	1.889	0.072	2.947	0.005	1.852	0.064	6.856	0.122
VFT phonemic	8.7	1.7	7.7	4.7	10.9	3.0	2.894	0.013	2.259	0.031	1.375	0.169	5.688	0.095
VFT semantic	17.5	4.0	15.0	4.0	24.0	5.0	2.987	<0.001	2.984	<0.001	3.684	<0.001	17.459	<0.001
Processing speed
PSI	24.0	5.0	21.0	4.0	24.0	2.0	0.784	0.624	1.008	0.584	2.444	0.015	3.468	0.415
Stroop test	2.9	0.4	3.2	1.0	2.5	0.3	2.718	<0.001	0.064	0.083	1.071	0.284	7.895	0.018
Executive functions
CDT	3.0	1.0	2.0	1.0	3.0	0	1.110	0.267	1.671	0.094	0.897	0.369	0.001	1.000
WCST achieved cat.	4.5	1.0	3.0	2.0	5.0	1.5	1.658	0.099	2.947	0.011	2.081	0.037	13.259	0.004
WSCT trials to first cat.	16.0	11.0	19.0	12.0	12.0	4.0	1.386	0.201	1.724	0.136	0.573	0.567	4.658	0.198
WSCT percentage of correct answers	56.6	19.6	38.0	21.0	66.3	17.5	1.784	0.074	2.891	0.012	1.375	0.169	6.314	0.126

All data given in the table is scaled scores (adjusted for the children’s age)

Values in italics has statistical significance set at p < 0.05