Korean Journal of Pediatrics 2008;51(9):998-1006.
Published online September 15, 2008.
Normal blood pressure values and percentile curves measured by oscillometric method in children under 6 years of age
Jin A Sohn1, Hee Sook Lee1, Kyoung Aha Lim2, So Young Yoon3, Jo Won Jung4, Nam Su Kim5, Chung Il Noh6, Soon Young Lee7, Young Mi Hong1
1Department of Pediatrics, School of Medicine, Ewha Womans University, Seoul, Korea
2Department of Pediatrics, School of Medicine, Pocheon Cha University
3Department of Pediatrics, School of Medicine, Kwandong University
4Department of Pediatrics, School of Medicine, Ajou University
5Department of Pediatrics, School of Medicine, Hanyang University
6Department of Pediatrics, School of Medicine, Seoul National University
7Department of Preventive Medicine, Ajou University
진동식 자동 혈압계로 측정한 6세 이하 아동의 정상 혈압치와 백분위수 곡선
손진아1, 이희숙1, 임경아2, 윤소영3, 정조원4, 김남수5, 노정일6, 이순영7, 홍영미1
1이화여자대학교 의과대학 소아과학교실
2포천중문 의과대학 소아과학교실
3관동대학교 의과대학 소아과학교실
4아주대학교 의과대학 소아과학교실
5한양대학교 의과대학 소아과학교실
6서울대학교 의과대학 소아과학교실
7아주대학교 의과대학 예방의학교실
Correspondence: 
Young Mi Hong, Email: hongym@chollian.net
Abstract
Purpose
: Hypertension is defined as average systolic blood pressure and/or diastolic blood pressure that is ≥95th percentile for gender, age, and height on ≥three occasions. Knowing that blood pressure values increase in children as they grow older, the purposes of this study were to measure blood pressure by an oscillometric device and to determine normal values and percentile curves for children.
Methods
: Systolic and diastolic blood pressures were measured twice with an oscillometric device in 3,545 boys and 3,145 girls under six years of age, in Seoul. Using this data, we determined average blood pressure values and percentile curves based on gender and age; we subdivided these values into blood pressures of 50th, 90th, 95th, and 99th percentiles, by percentile of height. The regression coefficients and standard deviations of the systolic and diastolic blood pressure values were obtained from linear regression models.
Results
: Older boys and girls had higher systolic and diastolic blood pressure values. Older boys and girls in the same percentile of height for age had higher systolic and diastolic blood pressure values. Taller boys and girls within the same age group had higher systolic and diastolic blood pressure values.
Conclusion
: Blood pressure standards based on gender, age, and height were obtained via an oscillometric method. Llimitation of this study is that the study population was not from the whole country, but exclusively from Seoul. Nonetheless, the data from this study will be helpful in diagnosing and managing hypertension in Korean children.
Key Words: Blood pressure, Child, Hypertension


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