Undernutrition is still highly frequent in hospitalized children with cystic fibrosis.

The aim of our study was to assess the nutritional status of hospitalized children with cystic fibrosis. We extracted data from the ePINUT surveys. Undernutrition was defined as a body mass index (BMI) of <18.5 according to the International Obesity Task Force cut-off, and the nutritional status goal was defined as a BMI z-score ≥0 SD for children older than 2 years and a weight-for-height z-score ≥0 SD for those younger than 2 years. Undernutrition frequency in the 114 patients with cystic fibrosis was 46% and was higher than in children with other chronic diseases (n = 5863; 30.5%; p = 0.001); 81% of children were below the nutritional status goal. Undernutrition frequency in cystic fibrosis is higher than in other chronic diseases.