The preventive effect of breast-feeding for longer than 6 months on early pubertal development among children aged 7-9 years in Korea.
Public Health Nutr
; 18(18): 3300-7, 2015 Dec.
Article
em En
| MEDLINE
| ID: mdl-25743129
ABSTRACT
OBJECTIVE:
The present study was performed to investigate whether breast-feeding is associated with early pubertal development among children 7-9 years old in Korea.DESIGN:
Children were divided into those who did and did not receive breast-feeding for 6 months or longer in accordance with the recommendations of the WHO. Pubertal status was determined by clinical examination using Tanner staging.SETTING:
Prospective observational study.SUBJECTS:
We conducted a follow-up study of children aged 7-9 years in 2011 who had taken part in the Ewha Birth & Growth Cohort study.RESULTS:
Fifty (22.8%) of the total of 219 children were in early puberty, with the proportion being slightly higher for girls (24.1%) than boys (21.4%). Children who had entered early puberty were taller, weighed more and had a higher concentration of insulin-like growth factor 1. Moreover, the change in weight Z-score from birth to follow-up was significantly lower in children who were breast-fed than in those who were not (weight Z-score change 0.32 (sd 1.59) v. 0.77 (sd 1.61), respectively, P=0.04). Comparison of breast-feeding by puberty status indicated a preventive association with early puberty in children who were breast-fed for 6 months or longer (OR=0.37; 95% CI 0.18, 0.74). This association remained significant after adjustment for relevant covariates.CONCLUSIONS:
These results demonstrate a beneficial association between breast-feeding and early pubertal development, especially in those breast-fed for 6 months or longer. The study suggests that interventions would need to start early in life to prevent early pubertal development.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Puberdade Precoce
/
Aleitamento Materno
/
Desenvolvimento Infantil
/
Cooperação do Paciente
/
Política Nutricional
/
Comportamento Materno
Tipo de estudo:
Etiology_studies
/
Guideline
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Child
/
Female
/
Humans
/
Male
/
Newborn
País/Região como assunto:
Asia
Idioma:
En
Revista:
Public Health Nutr
Assunto da revista:
CIENCIAS DA NUTRICAO
/
SAUDE PUBLICA
Ano de publicação:
2015
Tipo de documento:
Article