ArticleBMJ paediatrics open2025
Spot urinary copper/creatinine ratio: a non-invasive tool for diagnosis of Wilson's disease in children.
Article in BMJ paediatrics open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Diagnosing Wilson's disease (WD) in children remains a significant challenge. This study evaluated spot urinary copper/creatinine (Cu/Cr) ratio for paediatric WD diagnosis in Bangladesh. 60 children (30 WD, 30 non-WD by Leipzig criteria) were enrolled, and the spot morning urinary Cu/Cr and 24-hour urinary copper were measured. The spot Cu/Cr ratio was significantly higher in patients with WD (median 0.2597 vs 0.0101, p<0.001) and correlated strongly with 24-hour urinary copper (r=0.697). A cut-off of 0.01604 yielded 90% sensitivity and specificity (AUC 0.920). Spot urinary Cu/Cr ratio is an accurate, non-invasive tool for paediatric WD diagnosis, particularly in resource-limited settings. These promising initial findings highlight its potential, though further comprehensive validation in larger and diverse populations is essential to confirm its reliability and generalisability.
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