Highlights
- •Severe obesity in adolescents has become an important global public health issue.
- •The prevalence of severe and extreme severe obesity in Korean adolescents was 5.9% and 0.9%.
- •Adolescents with severe obesity have more metabolic risk factors compared to adolescents with less severe degree of obesity.
Abstract
Aims
To investigate the metabolic risk factors according to the degree of obesity in Korean
adolescents.
Methods
Among 7197 subjects aged 10–18 years who participated in the 2007–2014 K-NHANES, 1326
adolescents (M = 744, F = 582) with age and sex specific body mass index (BMI) ≥85th
percentile were included. These adolescents with obesity were classified as: overweight,
obesity, severe obesity, and extreme severe obesity. For assessing central obesity,
the subjects were further-classified as: normal waist obese, abdominal obesity I,
abdominal obesity II and abdominal obesity III.
Results
The prevalence of overweight, obesity, severe obesity and extreme severe obesity were
5.6%, 6.2%, 5.9% and 0.9% in Korean adolescents. With increasing levels of obese category,
the incidence of metabolic risk factors such as HDL-C < 40 mg/dL or <50 mg/dL in girls
older than 16 years-old (20.2%, 18.5%, 34.4%, 43.6%, P < .0001), TG ≥ 150 mg/dL (15.3%, 16.7%, 26.5%, 30.9%, P < .003), HbA1C ≥ 5.8% (12.8%, 13.5%, 21.9%, 42.2%, P < .006), SBP ≥ 130 mg/dL (3.5%, 6.4%, 8.1%, 19.5%, P < .003) significantly increased. With increasing levels of central obese category,
the incidence of metabolic risk factors such as HDL-C < 40 mg/dL or <50 mg/dL in girls
older than 16 years-old (20.2%, 26.2%, 37.9%, 35.7%, P < .0007), TG ≥ 150 mg/dL (16.1%, 21.2%, 25.8%, 29.8%, P < .004), glucose ≥ 100 mg/dL (7.7%, 7.3%, 11.7%, 17.4%, P < .009) and SBP ≥ 130 mg/dL (5.1%, 7.1%, 3.0%, 13.9%, P < .002) significantly increased.
Conclusion
Adolescents with severe obesity have more metabolic risk factors compared to adolescents
with less severe degree of obesity.
Keywords
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Article info
Publication history
Published online: February 07, 2018
Accepted:
January 26,
2018
Received in revised form:
December 6,
2017
Received:
August 16,
2016
Identification
Copyright
© 2018 Elsevier B.V. All rights reserved.
