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Early sexual maturation, central adiposity and subsequent overweight in late adolescence. A four-year follow-up of 1605 adolescent Norwegian boys and girls: the Young HUNT study

Bratberg, Grete Helen; Nilsen, Tom Ivar Lund; Holmen, Turid Lingaas; Vatten, Lars Johan
Journal article, Peer reviewed
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URI
http://hdl.handle.net/11250/1556216
Date
2007
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  • Institutt for samfunnsmedisin og sykepleie [1771]
  • Publikasjoner fra CRIStin - NTNU [21048]
Original version
BMC Public Health 2007, 7   10.1186/1471-2458-7-54
Abstract
Background: Early sexual maturation has been associated with overweight that may persist after

the completion of biological growth and development. We have prospectively examined the

influence of early sexual maturation on subsequent overweight in late adolescence and assessed if

this association was modified by central adiposity in early adolescence.

Methods: 1605 Norwegian adolescents were followed from early (baseline, mean age 14.2 years)

to late adolescence (follow-up, mean age 18.2 years). Maturational timing was assessed by selfreports

of pubertal status (PDS) in boys and age at menarche (AAM) in girls. Central adiposity was

classified according to waist circumference (waist) measured at baseline, using age and gender

specific medians as cut off. Overweight was classified according to International Obesity Task Force

(IOTF) standards.

Results: At follow-up, early sexual maturation in girls, but not in boys, was associated with

overweight. This association, however, was restricted to girls with high waist circumference (>

median) at baseline (OR, 2.7, 95% CI 1.5–4.9). Thus, age at menarche was not associated with

overweight in girls with low waist (≤ median) at baseline. Central adiposity was, independent of

maturational timing, associated with higher BMI at follow-up in both genders, but differences were

more pronounced among early matured girls (3.5 kg/m2), than among intermediate (2.7 kg/m2) and

late matured girls (1.2 kg/m2).

Conclusion: In girls, the combination of central adiposity and early age at menarche appears to

increase the risk of being overweight in late adolescence.
Publisher
BioMed Central
Journal
BMC Public Health

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