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J Am Soc Hypertens. 2018 Dec;12(12):e85-e91. doi: 10.1016/j.jash.2018.11.003. Epub 2018 Nov 22.

Systolic and diastolic blood pressure percentiles by age and gender in Northeastern Iran.

Author information

1
Clinical Research Unit, Mashhad University of Medical Sciences, Mashhad, Iran.
2
Department of Biostatistics & Epidemiology, School of Health, Management & Social Determinants of Health Research Center, Mashhad University of Medical sciences, Mashhad, Iran.
3
Metabolic Syndrome Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
4
Cardiovascular Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
5
Student Research Committee, Islamic Azad University of Mashhad, Iran.
6
Division of Medical Education, Brighton & Sussex Medical School, Falmer, Brighton, Sussex, UK.
7
Metabolic Syndrome Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Cardiovascular Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. Electronic address: ghayourm@mums.ac.ir.

Abstract

Hypertension (HTN) is a major risk factor for coronary artery disease. Its frequency is increasing globally. The aim of our study was to evaluate the reference range of blood pressure (BP) in the Iranian population stratified for age and gender. A total of 1449 subjects without diabetes, CVD, dyslipidemia, HTN history and with a normal BMI (18.5 ≤ BMI<25) were recruited in the present study. Participants were enrolled from the Mashhad stroke and heart atherosclerotic disorder study. Anthropometric indices and demographic data were collected by two health care specialists. A quantile regression model was used to estimate the expected systolic BP (SBP) and diastolic BP (DBP) at specific ages. A P-value of <.05 was considered significant for all analyses. All statistical analyses were performed using R (version 3.4.1) and SPSS software. The population included more men than women (51.6% vs. 48.4%). The mean and standard deviation of age in men (47.5 ± 8.4) was 2 years higher than women (45.63 ± 7.9; P < .001). SBP and DBP were higher in men than women (P < .001). By using a quantile regression model, we concluded that the 5th to 90th percentile of SBP in men, aged 30-69 years, ranged from 95 to 148.08 mm Hg and in women ranged from 86.66 to 140 mm Hg. The 5th to 90th percentile of DBP in men, aged 30-69 years, ranged from 60 to 91.66 mm Hg and in women ranged from 60 to 91.22 mm Hg. We have, for the first time, established the BP percentiles (1st, 5th, 10th, 50th, 90th, 95th, 99th) in an Iranian population stratified by age and gender. These data suggest that a local program for health promotion is necessary for the early identification of HTN in adults aged ≥30 years.

KEYWORDS:

Cardiovascular disease; diastolic blood pressure; systolic blood pressure

PMID:
30509778
DOI:
10.1016/j.jash.2018.11.003

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