• Jun Hu, Li Jiang, Siqi Hong, Li Cheng, Min Kong, and Yuanzhen Ye.
• Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital, Chongqing Medical University, No, 136 Zhongshan Er Road, Yuzhong District, Chongqing, China.
• Health Qual Life Out. 2013 Jan 1; 11: 47.

BackgroundThe Pediatric Quality of Life Inventory(TM) (PedsQL(TM)) is a widely used instrument to measure pediatric health-related quality of life (HRQOL) in children aged 2 to 18 years. The current study aimed to evaluate the reliability and validity of the Chinese version of the PedsQL(TM) 3.0 Neuromuscular Module in children with Duchenne muscular dystrophy (DMD).MethodsThe PedsQL(TM) 3.0 Neuromuscular Module was translated into Chinese following PedsQL(TM) Measurement Model Translation Methodology. The Chinese version scale was administered to 56 children with DMD and their parents, and the psychometric properties were evaluated.ResultsThe missing value percentages for each item of the Chinese version scale ranged from 0.00% to 0.54%. Internal consistency reliability approached or exceeded the minimum reliability standard of α = 0.7 (child α = 0.81, parent α = 0.86). Test-retest reliability was satisfactory, with intraclass correlation coefficients (ICCs) of 0.66 for children and 0.88 for parents (P < 0.01). Correlation coefficients between iteims and their hypothesized subscales were higher than those with other subscales (P < 0.05). The subscale of "About My/My Child's Neuromuscular Disease" significantly related to mobility and stair climbing status (Child t = 2.21, Parent t = 2.83, P < 0.05). The inter-correlations among the Chinese version of the PedsQL(TM) 3.0 Neuromuscular Module and the PedsQL(TM) 4.0 Generic Core Scales had medium to large effect sizes (P < 0.05). The child self-report scores were in moderate agreement with the parent proxy-report scores (ICC = 0.51, P < 0.05).ConclusionsThe Chinese version of the PedsQLTM 3.0 Neuromuscular Module has acceptable psychometric properties. It is a reliable measure of disease-specific HRQOL in Chinese children with DMD.

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