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Pre-hypertension is a common phenomenon: national database study
Eliezer Kitai1, Shlomo Vinker, Lea Halperin
1Department of Family Medicine, Leumit Health Services, Tel Aviv, Israel.
Insights
Prevalence of pre-hypertension is high in adults, increasing with age and affecting men more than women. Routine blood pressure checks are crucial for all age groups.
Area of Science:
- Cardiology
- Public Health
- Epidemiology
Background:
- The Joint National Committee (7th report) defined pre-hypertension, but its population prevalence remains largely unknown.
- Understanding pre-hypertension prevalence is critical for public health initiatives.
Purpose of the Study:
- To determine the prevalence of pre-hypertension within a large Israeli national cohort.
- To analyze demographic variations in pre-hypertension prevalence.
Main Methods:
- Analysis of blood pressure data from over 426,000 adult members of Leumit Health Services in Israel.
- Pre-hypertension defined using the Joint National Committee 7th edition (JNC-7) criteria.
- Blood pressure recording rates examined across age and gender demographics.
Main Results:
- Pre-hypertension was identified in 23.2% of subjects (80,625 individuals).
- Prevalence increased significantly with age, from 13.3% in 18-25 year olds to 44.8% in 66-75 year olds.
- Men (24.0%) had a higher prevalence than women (22.5%).
Conclusions:
- A substantial portion of the adult population exhibits pre-hypertension, with significant age-related increases.
- Despite lower overall blood pressure, young populations may have a high prevalence of pre-hypertension.
- Routine blood pressure measurement and further research across all age groups are recommended.
Background:
Recently the Joint National Committee (7th report) introduced the term "pre-hypertension." Little is known on its prevalence in the general population.
Objectives:
To assess the prevalence of pre-hypertension in a large national cohort.
Methods:
We analyzed the database of all > or = 18 year old members of Leumit Health Services, one of the four health management organizations in Israel, from which we retrieved the recorded blood pressure levels. Pre-hypertension was defined according to the JNC-7 criteria.
Results:
Of the 426,033 subjects 18.6% had a diagnosis of hypertension or used antihypertensive medications. Only 40.8% of the other 346,799 subjects had had their BP measured in the preceding 2 years. BP recording rates were higher in females than in males (45.1% vs. 36.3%) and higher in elderly subjects than in young subjects (56% aged 66-75 years vs. 32% aged 18-25). Pre-hypertension was observed in 80,625 (23.2%) of the 346,799 while only 56,113 (16.2%) had normal BP records. The prevalence of pre-hypertension increased with age (13.3% aged 18-25 vs. 44.8% aged 66-75), and was more prevalent in men than in women (24.0% vs. 22.5%).
Conclusions:
BP levels among young people are low, even though the prevalence of pre-hypertension in this population may be high. Thus, more emphasis should be given to routine BP measurements and confirmation of the findings in all age groups.
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