Korean Circ J.  2019 Nov;49(11):1035-1048. 10.4070/kcj.2019.0049.

Differential Control Rate of Systolic and Diastolic Blood Pressure among Korean Adults with Hypertension: the Sixth Korean National Health and Nutrition Examination Survey, 2013–2015 (KNHANES VI)

Affiliations
  • 1Department of Public Health, Yonsei University Graduate School, Seoul, Korea.
  • 2Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea. hckim@yuhs.ac
  • 3Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
  • 4Division of Cardiology, Ewha Womans University Mokdong Hospital, Seoul, Korea.
  • 5Cardiovascular and Metabolic Diseases Etiology Research Center, Yonsei University College of Medicine, Seoul, Korea.

Abstract

BACKGROUND AND OBJECTIVES
Discrepancy in blood pressure (BP) control rate may be owed to different risk factors associated with elevated systolic and diastolic BP (SBP and DBP).
METHODS
In a nationally representative survey of Korean population with BP measurements, a total of 5,100 participants with hypertension was included in the analyses. Three separate types of control rates were calculated: SBP, DBP, and (combined) S&DBP among all participants with hypertension and participants with treated hypertension, separately. Control rates were compared across sex and age groups. Multivariable logistic regression was used to identify demographic factors associated with SBP, DBP, and S&DBP control rates, separately.
RESULTS
In total, SBP, DBP, and S&DBP control rates were 63.0%, 63.7%, and 42.5% among all hypertension patients, and 77.5%, 87.4%, and 71.6% among treated hypertension patients. Men aged 40-49 years with hypertension and 30-39 years treated for hypertension had the highest SBP control rate (74.6% and 96.2%), which decreased by older age. Inversely, DBP control rate progressively increased with older age. SBP control rate among women with hypertension was the highest in 40-49 years (67.0%) but without linear trend by age group. Interestingly, both combined and DBP control rates were noticeably low among women aged 50-59 years. Women with body mass index ≥25 were at higher odds of having controlled SBP. Lower DBP control rate was observed in men with lower education level, higher household income, and heavy drinkers.
CONCLUSIONS
Separate examination of control rates demonstrated different sex- and age-differential trends, which would have been overlooked in combined control rates.

Keyword

Hypertension; Blood pressure; Chronic disease

MeSH Terms

Adult*
Blood Pressure*
Body Mass Index
Chronic Disease
Demography
Education
Family Characteristics
Female
Humans
Hypertension*
Logistic Models
Male
Nutrition Surveys*
Risk Factors

Figure

  • Figure 1 (A) S&DBP control rate among participants with hypertension by age. (B) S&DBP control rate among participants treated for hypertension by age. DBP = diastolic blood pressure; NA = not available; SBP = systolic blood pressure.

  • Figure 2 (A) SBP control rate among participants with hypertension by age. (B) SBP control rate among participants treated for hypertension by age. NA = not available; SBP = systolic blood pressure.

  • Figure 3 (A) DBP control rate among participants with hypertension by age. (B) DBP control rate among participants treated for hypertension by age. DBP = diastolic blood pressure; NA = not available.


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