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The Age-Related Trend in Blood Pressure and the Prevalence of Hypertension in Korean Adults

한국 성인의 연령에 따른 혈압변화 양상과 고혈압 유병률

  • Lee, Dae-Taek (Kim Chang Kew Exercise Physiology Laboratory, Kookmin University) ;
  • Lee, Yong-Soo (Kim Chang Kew Exercise Physiology Laboratory, Kookmin University)
  • 이대택 (국민대학교 체육대학 운동생리학실험실) ;
  • 이용수 (국민대학교 체육대학 운동생리학실험실)
  • Received : 2011.05.10
  • Accepted : 2012.02.06
  • Published : 2012.02.28

Abstract

A cross-sectional analysis of blood pressure (BP) changes and the current prevalence and distribution of hypertension among age groups in Korea were conducted. Systolic (SBP), diastolic (DBP), and pulse (PP) pressures were evaluated. Residents visiting a local Community Health Center for a health check-up and/or participating in the Health Promotion Program were included for the analyses. A total of 6,570 subjects (2,809 men, 3,761 women) were divided into five age groups: 30-39, 40-49, 50-59, 60-69, and $70\leq$ years. Comparisons were made between sex and among age groups. SBP and DBP were continuously elevated, while men showed higher levels than women until their mid-60s; then, the trend was reversed. DBP in men became elevated from their 30s, reaching the highest in the 40s then slowly decreasing. DBP in women increased up to their 40s and 50s, then reached a plateau. PP increased rapidly from the 50s in both sexes. The major contributor of age-related BP elevation may be large artery stiffness in men, particularly from their 50s, while the blood pressure elevation of women may relate to diverse factors including large artery stiffness, stroke volume, and ventricular ejection rate. The rapid elevation of PP after the 50s in both men and women could represent a risk of cardiovascular or coronary mortality, particularly with increasing age. The current data showed a higher rate of hypertension in both sexes compared to previous reports. When those with both high-normal BP and hypertension are looked at in combination, BP management of the target population should be drastically elevated.

한국인의 연령에 따른 혈압변화와 고혈압 유병률 그리고 수축기(SBP)와 이완기(DBP)혈압 및 맥압(PP)의 변화양상을 횡단적으로 평가하였다. 지역보건소 건강검진 및 건강증진프로그램을 통해 진료된 대상자 6,570명(남2,809, 여 3,761)을 5 연령군(30, 40, 50, 60대 그리고 70세 이상)으로 구분하여 비교 분석하였다. SBP는 지속적으로 증가하였으며, 남자가 여자에 비해 높게 유지되었다. 그러나 60대 중반에서 역전되었다. DBP는 남자 30대부터 증가하여 40대에서 최고점을 이르렀다가 하강하였다. 여자는 4-50대까지 증가하다가 일정한 수준을 유지하였다. 남녀 모두에서 PP는 50대 이후 가파르게 증가하였다. 남자의 경우 특히 50대 이후의 연령과 관계한 혈압의 증가는 큰동맥의 굳어짐 현상이 가장 큰 공헌을 하는 것으로 보이며, 여성의 경우는 큰동맥굳어짐, 일회심박출량 또는 심실박출율과 같은 다양한 원인에 기인하는 것으로 평가된다. PP의 증가는 심장에 부담을 주게 되며 특히 50대 이후 남녀 모두에서 가파른 위험성이 예견된다. 이 연구에서는 남녀 모두에서 고혈압 발병률이 이전의 연구들에 비해 높게 나타나고 있다. 높은정상혈압을 고혈압 위험군에 포함시킨다면 고혈압 관리를 위한 대상자의 범위는 상당히 확장될 것으로 보인다.

Keywords

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