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  • Title: Validation of a Nutrition Screening Tool for Pediatric Patients with Cystic Fibrosis.
    Author: Souza Dos Santos Simon MI, Forte GC, da Silva Pereira J, da Fonseca Andrade Procianoy E, Drehmer M.
    Journal: J Acad Nutr Diet; 2016 May; 116(5):813-8. PubMed ID: 27126153.
    Abstract:
    BACKGROUND: In cystic fibrosis (CF), nutrition diagnosis is of critical relevance because the early identification of nutrition-related compromise enables early, adequate intervention and, consequently, influences patient prognosis. Up to now, there has not been a validated nutrition screening tool that takes into consideration clinical variables. OBJECTIVE: To validate a specific nutritional risk screening tool for patients with CF based on clinical variables, anthropometric parameters, and dietary intake. DESIGN: Cross-sectional study. The nutrition screening tool was compared with a risk screening tool proposed by McDonald and the Cystic Fibrosis Foundation criteria. PARTICIPANTS/SETTING: Patients aged 6 to 18 years, with a diagnosis of CF confirmed by two determinations of elevated chloride level in sweat (sweat test) and/or by identification of two CF-associated genetic mutations who were receiving follow-up care through the outpatient clinic of a Cystic Fibrosis Treatment Center. MAIN OUTCOME MEASURES: Earlier identification of nutritional risk in CF patients aged 6 to 18 years when a new screening tool was applied. STATISTICAL ANALYSES PERFORMED: Agreement among the tested methods was assessed by means of the kappa coefficient for categorical variables. Sensitivity, specificity, and accuracy values were calculated. The significance level was set at 5% (P<0.05). Statistical analyses were carried out in PASW Statistics for Windows version 18.0 (2009, SPSS Inc). RESULTS: Eighty-two patients (49% men, aged 6 to 18 years) were enrolled in the study. The agreement between the proposed screening tool and the tool for screening nutritional risk for CF by the McDonald method was good (κ=0.804; P<0.001) and the sensitivity and specificity was 85% and 95%, respectively. Agreement with the Cystic Fibrosis Foundation criteria was lower (κ=0.418; P<0.001), and the sensitivity and specificity were both 72%. CONCLUSIONS: The proposed screening tool with defined clinical variables promotes earlier identification of nutritional risk in pediatric patients with CF.
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