Do early life factors influence body mass index in adolescents?



Título del documento: Do early life factors influence body mass index in adolescents?
Revista: Brazilian journal of medical and biological research
Base de datos: PERIÓDICA
Número de sistema: 000351876
ISSN: 0100-879X
Autores: 1
2
1
3
3
4
Instituciones: 1Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Porto Alegre, Rio Grande do Sul. Brasil
2Universidade Federal de Santa Maria, Centro de Ciencias da Saude, Santa Maria, Rio Grande do Sul. Brasil
3Universidade de Sao Paulo, Faculdade de Medicina de Ribeirao Preto, Ribeirao Preto, Sao Paulo. Brasil
4Universidade Federal do Maranhao, Departamento de Saude Publica, Sao Luis, Maranhao. Brasil
Año:
Periodo: Sep
Volumen: 40
Número: 9
Paginación: 1231-1236
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés The association between early life factors and body mass index (BMI) in adulthood has been demonstrated in developed countries. The aim of the present study was to assess the influence of early life factors (birth weight, gestational age, maternal smoking, and social class) on BMI in young adulthood with adjustment for adult socioeconomic position. A cohort study was carried out in 1978/79 with 6827 mother-child pairs from Ribeirão Preto city, located in the most developed economic area of the country. Biological, economic and social variables and newborn anthropometric measurements were obtained shortly after delivery. In 1996, 1189 males from this cohort, 34.3% of the original male population, were submitted to anthropometric measurements and were asked about their current schooling on the occasion of army recruitment. A multiple linear regression model was applied to determine variables associated with BMI. Mean BMI was 22.7 (95%CI = 22.5-23.0). After adjustment, BMI was 1.22 kg/m 2 higher among infants born with high birth weight (³4000 g), 1.21 kg/m 2 higher among individuals of low social class at birth and 0.69 kg/m 2 higher among individuals whose mothers smoked during pregnancy (P < 0.05). The association between social class at birth and BMI remained statistically significant (P < 0.05) even after adjustment for adult schooling. These findings suggest that early life social influences on BMI were more important and were not reversed by late socioeconomic position. Therefore, prevention of overweight and obesity should focus not only on changes in adult life styles but also on factors such as high birth weight
Disciplinas: Medicina
Palabras clave: Pediatría,
Salud pública,
Estudios de cohorte,
Crecimiento,
Salud perinatal,
Adolescentes,
Indice de masa corporal,
Estilo de vida
Keyword: Medicine,
Pediatrics,
Public health,
Cohort studies,
Growth,
Perinatal health,
Adolescents,
Body mass index,
Life style
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