Incidence of hypertension in Korea: 5-year follow-up study.
Limited data are available about the incidence of hypertension over the 5-yr in non-hypertensive subjects. The study subjects were 1,806 subjects enrolled in a rural area of Daegu, Korea for a cohort study from August to November 2003. Of them, 1,287 (71.3%) individuals had another examination 5 yr later. To estimate the incidence of hypertension, 730 non-hypertensive individuals (265 males; mean age = 56.6 ± 11.1 yr-old) at baseline examination were analyzed in this study. Hypertension was defined as either a new diagnosis of hypertension or self-reports of newly initiated antihypertensive treatment; prehypertension was if the systolic blood pressure was 120-139 mmHg and/or diastolic blood pressure was 80-89 mmHg. During the 5-yr follow-up, 195 (26.7%) non-hypertensive individuals developed incident hypertension. The age-adjusted 5-yr incidence rates of hypertension were 22.9% (95% confidence interval [CI] = 19.9-29.0) in overall subjects, 22.2% (95% CI = 17.2-27.2) in men, and 24.3% (95% CI = 20.4-28.2) in women. The incidence rates of hypertension significantly increased with age. In the multivariate analysis, prehypertension (Odds ratio [OR] 2.25; P < 0.001) and older age (OR 2.26; P = 0.010) were independent predictors for incident hypertension. In this rapidly aging society, population-based preventive approach to decrease blood pressure, particularly in subjects with prehypertension, is needed to reduce hypertension.
Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea.
Jang Hoon
JH
Lee
Dong Heon
DH
Yang
Hun Sik
HS
Park
Yongkeun
Y
Cho
Jae Eun
JE
Jun
Wee Hyun
WH
Park
Byung Yeol
BY
Chun
Ji-Yeon
JY
Shin
Dong Hoon
DH
Shin
Kyeong Soo
KS
Lee
Kee-Sik
KS
Kim
Kwon-Bae
KB
Kim
Young Jo
YJ
Kim
Shung Chull
SC
Chae
D000328:Adult; D000367:Age Factors; D000368:Aged; D000959:Antihypertensive Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D001794:Blood Pressure; D001795:Blood Pressure Determination; D001837:Body Weights and Measures; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006973:Hypertension / Q000175:diagnosis / Q000188:drug therapy / Q000453:epidemiology* / Q000503:physiopathology; D015994:Incidence; D008297:Male; D008875:Middle Aged; D056910:Republic of Korea / Q000453:epidemiology; D012307:Risk Factors; D011795:Surveys and Questionnaires
D000959:Antihypertensive Agents