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Development and validation of a pediatric nutritional screening score (PNSS) for hospitalized children

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摘要


Background and Objectives: There is no evidence on the most effective nutritional screening tool for hospitalized children. The objective of this study was to develop and validate a pediatric nutritional screening tool to assess undernutrition risk upon hospital admission. Methods and Study Design: The study had a two-phase prospective observational design. A novel pediatric nutritional screening score (PNSS) was developed and sensitivity, specificity, and reliability were evaluated by comparing with a complete dietetic assessment. Length of hospital stay, weight loss, disease complications, and nutritional support were recorded. Results: PNSS consisted of three elements: disease with malnutrition risks, changes in food intake, and anthropometric measurements, with a score of 0–2 for each element. The optimal cut-off score to identify patients (n=96) at risk of undernutrition was two. The agreement between PNSS and the complete dietetic assessment was moderate (κ=0.435, 95% CI=0.373- 0.498). Sensitivity and specificity values of PNSS were 82% (95% CI=76%-87%) and 71% (95% CI=67%-74%), respectively. Inter-rater agreement had a κ value of 0.596 (95% CI=0.529-0.664, p<0.001). The percentage of children with undernutrition risk was 44.9%. Children with oncologic, gastrointestinal, and cardiac diseases were most likely to be at risk of undernutrition. The at-risk group was associated significantly with longer length of hospital stay and higher percentage of weight loss compared with the not-at-risk group. Conclusion: PNSS is the first nutritional screening tool developed for hospitalized children and validated in a large population of patients in China.

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