Factors Associated with Height Catch-Up and Catch-Down Growth Among Schoolchildren

Rosângela F L Batista, Antônio A M Silva, Marco A Barbieri, Vanda M F Simões and Heloisa Bettiol

PLOS ONE, 2012, vol. 7, issue 3, 1-10

Abstract: In developed countries, children with intrauterine growth restriction (IUGR) or born preterm (PT) tend to achieve catch-up growth. There is little information about height catch-up in developing countries and about height catch-down in both developed and developing countries. We studied the effect of IUGR and PT birth on height catch-up and catch-down growth of children from two cohorts of liveborn singletons. Data from 1,463 children was collected at birth and at school age in Ribeirão Preto (RP), a more developed city, and in São Luís (SL), a less developed city. A change in z-score between schoolchild height z-score and birth length z-score≥0.67 was considered catch-up; a change in z-score≤−0.67 indicated catch-down growth. The explanatory variables were: appropriate weight for gestational age/PT birth in four categories: term children without IUGR (normal), IUGR only (term with IUGR), PT only (preterm without IUGR) and preterm with IUGR; infant's sex; maternal parity, age, schooling and marital status; occupation of family head; family income and neonatal ponderal index (PI). The risk ratio for catch-up and catch-down was estimated by multinomial logistic regression for each city. In RP, preterms without IUGR (RR = 4.13) and thin children (PI

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0032903

DOI: 10.1371/journal.pone.0032903

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