Reliability and validity of the Chinese version of the pediatric quality of life inventoryTM (PedsQLTM) 3.0 neuromuscular module in children with Duchenne muscular dystrophy

Table 3 Item-subscale correlations of the Chinese version of the PedsQL ^TM 3.0 neuromuscular module for DMD

*Subscales & Items*	*Child self-report*			*Parent proxy-report*
	AN	C	FR	AN	C	FR
About My/My Child’s Neuromuscular Disease (AN)
It is hard to breathe	0.05	0.02	0.05	0.12	0.17	0.04
Get sick easily	0.05	0.18	0.22	0.09	0.14	0.21
Get sores and/or rashes	0.29	0.17	0.03	0.27	0.19	0.10
Legs hurt	0.73	0.37	0.15	0.78	0.30	0.65
Feel tired	0.80	0.14	0.21	0.77	0.12	0.51
Back feel stiff	0.59	0.16	0.01	0.63	0.29	0.43
Wake up tired	0.74	0.04	0.00	0.71	0.16	0.56
Hands are weak	0.63	0.28	0.13	0.62	0.15	0.54
Hard to use the bathroom	0.71	0.43	0.31	0.69	0.36	0.30
Hard to gain or lose weight when one wants to	0.65	0.10	0.13	0.68	0.25	0.57
Hard to use my hands	0.69	0.31	0.03	0.78	0.07	0.56
Hard to swallow food	0.11	0.20	0.15	0.01	0.46	0.04
Takes a long time to bathe or shower	0.70	0.00	0.07	0.71	0.25	0.56
Get hurt accidentally	0.59	0.20	0.01	0.59	0.08	0.29
Take a long time to eat	0.48	0.14	0.19	0.48	0.21	0.28
Hard to turn oneself during the night	0.70	0.08	0.03	0.69	0.39	0.47
Hard to go places with one’s equipment	0.66	0.22	0.36	0.61	0.46	0.37
Communication (C)
Hard to tell the doctors and nurses how I feel	0.28	0.81	0.19	0.26	0.83	0.18
Hard to ask the doctors and nurses questions	0.09	0.87	0.28	0.35	0.89	0.12
Hard to explain the illness to other people	0.13	0.87	0.16	0.21	0.87	0.02
About Our Family Resources (FR)
Hard for my family to plan activities like vacations	0.13	0.18	0.53	0.55	0.17	0.69
Hard for my family to get enough rest	0.12	0.23	0.76	0.54	0.04	0.80
I think money is a problem in our family	0.03	0.19	0.82	0.46	0.10	0.87
I think my family has a lot of problems	0.01	0.17	0.84	0.64	0.06	0.79
Do not have the equipment one needs	0.05	0.14	0.70	0.52	0.09	0.80

Note: Pearson’s product moment correlations are designated as small (0.10), medium (0.30), and large (0.50).
Underlined values represent correlations between items and their hypothesized subscales.
AN, About My Neuromuscular Disease; C, Communication; FR, About Our Family Resources.

ISSN: 1477-7525