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Reliability and Validity of the Turkish Translation of the PedsQL™ 3.0 Neuromuscular Module for 2-to 4-Year-Olds in
Seval Kutlutürk Yıkılmaz1, Müberra Tanrıverdi2, Sedat Öktem3
1Department of Physiotherapy and Rehabilitation, Faculty of Hamidiye Health Sciences, University of Health Sciences, Istanbul, Turkey.
Insights
The Turkish version of the Pediatric Quality of Life Inventory™ Neuromuscular Module (PedsQL™ 3.0 NM-TR) is reliable and valid for assessing health-related quality of life in young children with spinal muscular atrophy (SMA). This validated tool aids in understanding the quality of life for children with SMA.
Area of Science:
- Pediatric Health Outcomes
- Quality of Life Measurement
- Neuromuscular Diseases
Background:
- The Pediatric Quality of Life Inventory™ (PedsQL™) Neuromuscular Module (PedsQL™ 3.0 NM) is designed to assess health-related quality of life in children with neuromuscular conditions.
- Spinal muscular atrophy (SMA) is a significant neuromuscular disease affecting young children, necessitating reliable tools for quality of life assessment.
Purpose of the Study:
- To adapt and validate the PedsQL™ 3.0 Neuromuscular Module for Turkish-speaking children aged 2 to 4 years with SMA.
- To evaluate the reliability and validity of the Turkish version (PedsQL™ 3.0 NM-TR) in this specific pediatric population.
Main Methods:
- The PedsQL™ 3.0 NM was translated into Turkish following established PedsQL™ methodology.
- The PedsQL™ 3.0 NM-TR was administered to 54 parents of children aged 2-4 years with SMA.
- Reliability was assessed using test-retest and intraclass correlation coefficients (ICC). Internal consistency was evaluated using Cronbach's α.
- Concurrent construct validity was determined by correlating PedsQL™ 3.0 NM-TR scores with the PedsQL™ 4.0 Generic Core Scale (PedsQL™ 4.0 GCS).
Main Results:
- The PedsQL™ 3.0 NM-TR demonstrated excellent reliability, with Cronbach's α values ranging from 0.871 to 0.906.
- Test-retest ICC values for the PedsQL™ 3.0 NM-TR were high, ranging from 0.812 to 0.917.
- Correlations between the PedsQL™ 3.0 NM-TR and PedsQL™ 4.0 GCS subscores indicated good to fair concurrent construct validity.
Conclusions:
- The PedsQL™ 3.0 NM-TR is a reliable, valid, and feasible instrument for assessing health-related quality of life in 2- to 4-year-old children with SMA.
- This validated Turkish version provides a crucial tool for clinicians and researchers evaluating the impact of SMA on young children's quality of life.
Background:
The Pediatric Quality of Life Inventory™ (PedsQL™) Neuromuscular Module (PedsQL™ 3.0 NM) evaluates the health-related quality of life in children who are affected by neuromuscular diseases. This study's aim is to assess the adaptation of the PedsQL™ 3.0 NM Turkish version (PedsQL™ 3.0 NM-TR) for 2- to 4-year-olds in spinal muscular atrophy (SMA).
Methods:
The procedure of translating the PedsQL™ 3.0 NM into Turkish was conducted in accordance with the translation methodology outlined by the PedsQL™ measurement model. The PedsQL™ 3.0 NM-TR was administered to 54 parents of children with SMA aged 2 to 4 years. The test-retest reliability and intraclass correlation coefficient (ICC) were measured for reliability analysis. Cronbach's α coefficient and item score correlations were calculated for internal consistency. Concurrent construct validity was evaluated by Pearson correlations between the outcomes of the PedsQL™ 4.0 Generic Core Scale (PedsQL™ 4.0 GCS) and the PedsQL™ 3.0 NM.
Results:
The PedsQL™ 3.0 NM-TR total score shows excellent reliability. The Cronbach's α values for the PedsQL™ 3.0 NM ranged between 0.871 and 0.906, while those for the PedsQL™ 4.0 GCS ranged between 0.843 and 0.897. Test-retest ICC values for the PedsQL™ 3.0 NM-TR ranged between 0.812 and 0.917, and for the PedsQL™ 4.0 GCS ranged between 0.773 and 0.899. The relationship between the PedsQL™ 3.0 NM-TR and the subscores of the PedsQL™ 4.0 GCS demonstrated a range of correlations from excellent to fair, indicating the interplay between two scales.
Conclusion:
This study established the PedsQL™ 3.0 NM-TR as reliable, valid, and feasible for use in children aged 2 to 4 years with SMA.

