Table 2.

Each of the indices of WMS-R in the group of patients exposed to their radiotherapy and in the group of patients unexposed

	Received radiotherapy (n = 51)	Not received radiotherapy (n = 54)	P
WMS-R index, mean ± SD
Attention/concentration	97.4 ± 13.2	101.4 ± 10.31	0.238
Verbal memory	94.9 ± 12.4	103.6 ± 13.91	0.001†††
Visual memory	102.2 ± 9.9	102.4 ± 13.32	0.989
Delayed recall	98.5 ± 10.6	104.3 ± 11.43	0.008††

WMS-R, Wechsler Memory Scale-Revised.

¹One missing value was excluded.

²Two missing values were excluded.

³Three missing values were excluded.

^††Significant difference (P < 0.01) between radiotherapy group and no-radiotherapy group.

^†††Significant difference (P < 0.001) between radiotherapy group and no-radiotherapy group.