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High increments of overweight along with low length-for-age growth during the first 24 months of life

Background: It has been reported that children nursed in orphanages loose one month of lineal growth for every three months they spend in the orphanage. Objective: The purpose of this study was to evaluate the daily variation of weight- for- length and length-for-age among infants under 24 months of age, living in a temporary public orphanage in Mexico. Methods: Ninety children from 0 to 24 months of age, who were institutionalized at an orphanage, were assessed during a three month period. Upon arrival their height and weight were measured daily, Monday through Friday. Daily growth velocity for weight and length was calculated. Length-for age (LAZ) and weight-for-length (WHZ) age z- scores were calculated based on WHO criteria. Risk of overweight (ROW) and overweight (OW) were classified using the WHO criteria. Results: The increments of daily weight were lower than the normal range (9 g daily), but the ROW and OW increased from 10% and 3% at the beginning of the study to 14% and 11% at the end. At the end of the follow-up, WHZ was inversely associated to length (cm/day) velocity (r = -302, p < 0.01). Although a significant increase in ROW and OW was observed, at the end of the study, 31% of the children showed signs of stunting (-2 SD in lengthage) and 5% remained emaciated (-2 SD in weightlength). Conclusions: Children living in an orphanage showed reduced increments of weight and length-for-age, as well as a reduced length velocity and an increased ROW and OW.

Palabras Clave: Obesity in lactancy. Catch-up growth. Delayed lineal growth. Mexican children. Orphanage.

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