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Effect of birth size and proportionality on BMI and skinfold thickness in early adolescence: prospective birth cohort study
- Source :
- European Journal of Clinical Nutrition. 63:634-639
- Publication Year :
- 2008
- Publisher :
- Springer Science and Business Media LLC, 2008.
-
Abstract
- Objectives: To assess the effect of birth weight, length and ponderal index at birth on body mass index (BMI) and skinfold thickness in early adolescence. Subjects/Methods: Population-based, prospective birth cohort study in Pelotas, Brazil. Out of 5249 cohort members, 87.5% were traced at 11 years of age. Birth weight, length and ponderal index (birth weight/birth length3 × 100)—treated as continuous variable and divided into fourths—were the exposure variables. BMI at 11 years, triceps and subscapular skinfolds were the outcomes. Confounders included sex, gestational age, parity, maternal schooling, family income, maternal smoking during pregnancy and maternal BMI. Results: All three exposure variables were significantly associated with BMI in early adolescence, but the strongest effect was observed for birth weight. Each unit (Z-score) increase in birth weight was associated with 0.46 kg m−2 increase in BMI at 11 years. The equivalent coefficients for ponderal index and birth length were 0.22 and 0.21 kg m−2, respectively. High birth weight, length and ponderal index were also associated with increased values for triceps and subscapular skinfolds at 11 years, and with increased prevalence of obesity. Conclusions: Of the three birth exposures studied, birth weight presented the strongest effect on anthropometry in early adolescence. Ponderal index, a proportionality indicator associated with infant mortality, hospitalizations and anthropometry in infancy, was also associated with anthropometry in early adolescence, but its predictive value for the latter is lower than that of birthweight alone. All three birth size indicators studied presented poor predictability of the later risk of obesity.
- Subjects :
- Pediatrics
medicine.medical_specialty
Birth weight
Medicine (miscellaneous)
Body Mass Index
Cohort Studies
Prevalence
medicine
Birth Weight
Body Size
Humans
Obesity
Child
Prospective cohort study
Pregnancy
Nutrition and Dietetics
business.industry
Infant, Newborn
Gestational age
Confounding Factors, Epidemiologic
Anthropometry
medicine.disease
Skinfold Thickness
Cohort
business
Body mass index
Brazil
Demography
Cohort study
Subjects
Details
- ISSN :
- 14765640 and 09543007
- Volume :
- 63
- Database :
- OpenAIRE
- Journal :
- European Journal of Clinical Nutrition
- Accession number :
- edsair.doi.dedup.....2705e15b8adcb7bc6cd93d3cd05345de