Table 4.

PedsQL™ Cancer Module: assessment of Internal Consistency Reliability according to report of the child/adolescent (n = 124) and report of the guardian (n = 190)

PedsQL™ Subscales	Report of child/adolescent Item-Total Correlation	Report of guardian Item-Total Correlation	Report of child/adolescent Corrected Item-Total Correlation	Report of guardian Corrected Item-Total Correlation	Correlation between child/guardian scores (r) (n = 124)
Pain and hurt					0.227*
Item 1	0.73	0.83	0.39	0.60
Item 2	0.75	0.79	0.42	0.56
Nausea					0.470**
Item 1	0.61	0.77	0.37	0.64
Item 2	0.62	0.64	0.46	0.49
Item 3	0.63	0.74	0.50	0.60
Item 4	0.59	0.75	0.40	0.61
Item 5	0.58	0.65	0.44	0.47
Procedural anxiety					0.324**
Item 1	0.78	0.74	0.63	0.57
Item 2	0.83	0.86	0.74	0.75
Item 3	0.67	0.87	0.56	0.74
Treatment anxiety					0.234**
Item 1	0.63	0.74	0.43	0.56
Item 2	0.74	0.88	0.58	0.79
Item 3	0.84	0.86	0.64	0.73
Worry					0.247**
Item 1	0.64	0.80	0.40	0.67
Item 2	0.77	0.87	0.55	0.74
Item 3	0.77	0.78	0.57	0.63
Cognitive problems					0.169*
Item 1	0.57	0.53	0.28	0.24
Item 2	0.58	0.67	0.29	0.44
Item 3	0.43	0.49	0.28	0.28
Item 4	0.68	0.66	0.48	0.46
Item 5	0.63	0.66	0.39	0.47
Perceived physical appearance					0.214*
Item 1	0.65	0.67	0.24	0.48
Item 2	0.70	0.77	0.36	0.56
Item 3	0.73	0.82	0.40	0.62
Communication					0.200*
Item 1	0.71	0.83	0.52	0.68
Item 2	0.83	0.88	0.67	0.76
Item 3	0.73	0.77	0.47	0.59

*p < 0.05, **p ≤ 0.01 – Spearman's Correlation Coefficient