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Abstract: FR-PO1142

Secular Trends in Prevalence of Hypertension and Elevated Blood Pressure Among Korean Children and Adolescents: The Korea National Health and Nutrition Examination Survey 2007-2015

Session Information

  • Pediatric Nephrology - I
    October 26, 2018 | Location: Exhibit Hall, San Diego Convention Center
    Abstract Time: 10:00 AM - 12:00 PM

Category: Pediatric Nephrology

  • 1600 Pediatric Nephrology

Authors

  • Lee, Yeonhee, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea (the Republic of)
  • Hyun, Hyesun, St. Vincent's Hospital, The Catholic University College of Medicine, Suwon, Korea (the Republic of)
  • Cho, Heeyeon, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea (the Republic of)
Background

Hypertension is an important health problem and the prevalence of hypertension in children and adolescents has been gradually increasing. We aimed to analysis the recent trends in blood pressure (BP) levels and the prevalence of hypertension among Korean children and adolescents. We also analyzed the potential contributing factors.

Methods

This study examines data obtained from the Korea National Health and Nutrition Examination Survey (KNHANES) 2007-2015 which were combined into 3 time periods (2007-2009, 2010-2012, and 2013-2015). The KNHANES is a nationally representative surveillance system, which has been conducted cross-sectionally since 1998 by the Korea Centers for Disease Control and Prevention and the Ministry of Health and Welfare. In the present study, a total of 7,889 Korean children and adolescents aged 10-18 years were included.

Results

The distributions of sex and age were not significantly different across 3 periods (2007-2009, 2010-2012, and 2013-2015). There were no significant changes in proportion of obesity and overweight from 2007-2009 to 2013-2015, while body mass index z-score significantly increased in total population from 2007-2009 to 2013-2015. Additionally, weight circumference and abdominal obesity were significantly increased from 2007-2009 to 2013-2015. For dietary factors, daily intake of calories, total fat, carbohydrate, protein and fiber increased, while daily intake of sodium decreased significantly. Mean systolic BP levels significantly increased from 2007-2009 to 2013-2015 in total population, while diastolic BP values did not increase in total population. In 2013-2015, the prevalence of elevated BP and hypertension were 8.8% and 9.0%, respectively. Compared to those in 2007-2009, the prevalence of elevated BP in 2013-2015 increased in total population, especially, boys, and obese subgroup. The prevalence of hypertension in obese group in 2013-2015 was 27.7%, which was significantly increased from 2007-2009 to 2013-2015. Regression analysis revealed the association between central obesity and diastolic BP. Girls were less likely to have hypertension than boys.

Conclusion

Mean systolic BP and the prevalence of elevated BP increased from 2007-2009 to 2013-2015. The possible influencing factor is obesity, and further analysis is necessary.

Funding

  • Government Support - Non-U.S.