• H C Lai, M R Kosorok, S A Sondel, S T Chen, S C FitzSimmons, C G Green, G Shen, S Walker, and P M Farrell.
• Department of Pediatrics, University of Wisconsin School of Medicine, Madison 53792, USA.
• J. Pediatr. 1998 Mar 1; 132 (3 Pt 1): 478-85.

ObjectivesThe objectives of this study were to determine growth status and to identify malnutrition with various anthropometric indicators in children with cystic fibrosis (CF) based on cross-sectional analysis of the 1993 National CF Patient Registry data.MethodsHeights and weights of 13,116 children with CF were evaluated with percentile, percent of reference median, Z-score, and percent ideal weight-for-height based on National Center for Health Statistics/Centers for Disease Control growth references. Malnutrition was defined by four criteria: (1) height-for-age <5th percentile ("stunting") or weight-for-age <5th percentile ("wasting") (2) height-for-age <90% of reference median or weight-for-age <80% of reference median, (3) height-for-age <5th percentile or percent ideal weight-for-height <85%, and (4) height-for-age <90% of reference median or weight-for-height <85% of reference median.ResultsMean and median height- and weight-for-age were found to be at the 30th and 20th percentiles in children with CF. Malnutrition (height- or weight-for-age <5th percentile) was particularly pronounced in infants (47%) and adolescents (34%) and patients with newly diagnosed CF (44%). A significant sex difference (p < 0.01) in the occurrence of stunting (height-for-age <5th percentile) was observed during adolescence: boys 11 to 14 years of age showed lower occurrence of stunting (19%) compared with girls (29%), whereas the opposite trend was observed at 15 to 18 years (34% in male patients vs 28% in female patients).ConclusionTwenty percent of all children in the 1993 National CF Patient Registry were <5th percentile for height- or weight-for-age. A significant discrepancy was found when different criteria were used to distinguish "stunting" versus "wasting" in malnourished children with CF.

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