Size at birth and height in early adolescence: a prospective birth cohort study

Cadernos de Saúde Pública

Cora L. P. Araújo¹  Pedro C. Hallal¹  Gisele A. Nader¹  Ana Maria B. Menezes¹  Cesar G. Victora¹ 

[1] ,Universidade Federal de Pelotas Programa de Pós-Graduação em Epidemiologia Pelotas,Brasil

关键词: Body Height;    Birth Weight;    Gestational Age;    Prospective Studies;    Longitudinal Studies;    Estatura;    Peso ao Nascer;    Idade Gestacional;    Estudos Prospectivos;    Estudos Longitudinais;   

DOI  :  10.1590/S0102-311X2008000400018

来源: SciELO

【 摘 要 】

The aim of this study was to evaluate the association between size at birth (birthweight and birth length) and height in early adolescence in a prospective birth cohort study in Pelotas, Rio Grande do Sul, Brazil. Interviews were carried out in 1993, including measurements of birthweight and length, and in 2004-2005, including measurements of weight and height. This analysis includes 4,452 individuals, with a mean age of 11.3 years (standard deviation - SD = 0.3), representing a follow-up rate of 87.5%. Mean height at 11 years was 145.8 cm (SD = 7.9), or 144.9 cm (SD = 7.7) in boys and 146.8 cm (SD = 7.9) in girls. Birthweight and birth length were positively associated with height in early adolescence in the crude analysis, but after adjustment for confounding and for each other, only the effect of birth length was still significant. A one z-score increase in birth length was associated with a 1.63 cm increase in height at 11 years. The present study shows that birth length is a strong predictor of later height, while the effect of birth weight disappears after adjustment for birth length.

【 授权许可】

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