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Background: The Paediatric Quality of life Inventory (PedsQL) Generic Core Scales and the Child Health Utilities 9 Dimensions (CHU9D) are two paediatric health-related quality of life (HRQoL) measures commonly used in overweight and obesity research. However, no studies have comprehensively established the psychometric properties of these instruments in the context of paediatric overweight and obesity. The aim of this study was to assess the reliability, acceptability, validity and responsiveness of the PedsQL and the CHU9D in the measurement of HRQoL among children and adolescents living with overweight and obesity.
Subjects/methods: Subjects were 6544 child participants of the Longitudinal Study of Australian Children, with up to 3 repeated measures of PedsQL and CHU9D and aged between 10 and 17 years. Weight and height were measured objectively by trained operators, and weight status determined using World Health Organisation growth standards. We examined reliability, acceptability, known group and convergent validity and responsiveness, using recognised methods.
Results: Both PedsQL and CHU9D demonstrated good internal consistency reliability, and high acceptability. Neither instrument showed strong convergent validity, but PedsQL appears to be superior to the CHU9D in known groups validity and responsiveness. Compared with healthy weight, mean (95%CI) differences in PedsQL scores for children with obesity were: boys -5.6 (-6.2, -4.4); girls -6.7 (-8.1, -5.4) and differences in CHU9D utility were: boys -0.02 (-0.034, -0.006); girls -0.035 (-0.054, -0.015). Differences in scores for overweight compared with healthy weight were: PedsQL boys -2.2 (-3.0, -1.4) and girls -1.3 (-2.0, -0.6) and CHU9D boys: no significant difference; girls -0.014 (-0.026, -0.003).
Conclusion: PedsQL and CHU9D overall demonstrated good psychometric properties, supporting their use in measuring HRQoL in paediatric overweight and obesity. CHU9D had poorer responsiveness and did not discriminate between overweight and healthy weight in boys, which may limit its use in economic evaluation.
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http://dx.doi.org/10.1038/s41366-023-01305-5 | DOI Listing |
J Magn Reson Imaging
September 2025
Department of Neurology, Dell Medical School, University of Texas at Austin, Austin, Texas, USA.
Background: Cerebrovascular reactivity reflects changes in cerebral blood flow in response to an acute stimulus and is reflective of the brain's ability to match blood flow to demand. Functional MRI with a breath-hold task can be used to elicit this vasoactive response, but data validity hinges on subject compliance. Determining breath-hold compliance often requires external monitoring equipment.
View Article and Find Full Text PDFAnal Methods
September 2025
Henan Linker Technology Key Laboratory, College of Advanced Interdisciplinary Science and Technology (CAIST), Henan University of Technology, Zhengzhou 450001, China.
Salicylic acid (SA) is a critical phytohormone involved in plant growth, development, and defense responses, making its precise quantification essential for both agricultural management and environmental monitoring. Here, we report a novel label-free near-infrared aptasensor (NIRApt) for the rapid and sensitive detection of SA, utilizing a rationally selected triphenylmethane (TPM) dye. Through systematic screening, ethyl violet (EV) was identified as the optimal fluorophore, showing pronounced fluorescence enhancement upon binding to a SA-specific aptamer.
View Article and Find Full Text PDFProteomics Clin Appl
September 2025
AIBioMed Research Group, Taipei Medical University, Taipei, Taiwan.
Background: Endometrial carcinoma (EC) represents a significant clinical challenge due to its pronounced molecular heterogeneity, directly influencing prognosis and therapeutic responses. Accurate classification of molecular subtypes (CNV-high, CNV-low, MSI-H, POLE) and precise tumor mutational burden (TMB) assessment is crucial for guiding personalized therapeutic interventions. Integrating proteomics data with advanced machine learning (ML) techniques offers a promising strategy for achieving precise, clinically actionable classification and biomarker discovery in EC.
View Article and Find Full Text PDFJ Pineal Res
September 2025
School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), School of Tropical Agriculture and Forestry, Hainan University, Sanya, China.
Melatonin, a multifunctional signalling molecule in plants, has been increasingly recognized for its role in improving stress tolerance, regulating hormone signalling, and enhancing crop productivity. Exogenous melatonin application represents a promising strategy to enhance crop productivity under global agricultural challenges. This study aimed to investigate the physiological and molecular mechanisms by which melatonin improves yield in Brassica napus.
View Article and Find Full Text PDFPhys Occup Ther Pediatr
September 2025
Department of Rehabilitation Sciences, Neurorehabilitation Technology Lab, KU Leuven Brugge, Bruges, Belgium.
Purpose: To explore the concurrent validity and responsiveness of the Wheelchair Skills Test-Questionnaire (WST-Q) caregiver proxy, and the inter- and intra-rater reliability of the Wheelchair Skills Test (WST) in children and young adults with cerebral palsy (CP).
Methods: Concurrent validity and responsiveness of the WST-Q caregiver proxy were assessed in 12 participants with CP (mean age 15 years; SD: 3 years 6 months); power wheelchair users. Concurrent validity of the WST-Q was determined using Pearson's correlation coefficients, and responsiveness with linear regression.