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Effects of prehypertension on admissions and deaths: a simulation.

AbstractBACKGROUND:
The Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure recently released new clinical practice guidelines that target systolic blood pressure and identify persons with "prehypertension" (systolic blood pressure, 120-139 mm Hg), previously considered normal, as being at elevated risk and in need of intervention.
METHODS:
We used a simulation model, fitted to longitudinal data from the first NHANES (National Health and Nutrition Examination Survey) Epidemiologic Followup Study, to estimate the effects of prehypertension and residual hypertension (systolic blood pressure, > or =140 mm Hg). The term residual hypertension recognizes that many people with hypertension have lowered their pressures through treatment, but not to less than 140 mm Hg. We applied the model to a representative sample of US adults aged 25 to 74 years from NHANES III.
RESULTS:
Except for women aged 25 to 44 years, more than a third of each age group in NHANES III had prehypertension. Approximately two thirds of persons aged 45 to 64 years and 80% of persons aged 65 to 74 years had prehypertension or residual hypertension. Together, prehypertension and residual hypertension accounted for 4.7% of hospital admissions per 10 000 adults aged 25 to 74 years, 9.7% of nursing home admissions, and 13.7% of deaths. Prehypertension alone accounted for 3.4% of hospitalizations, 6.5% of nursing home stays, and 9.1% of deaths. Numbers of events attributable to prehypertension are greatest for men aged 45 to 64 years and persons aged 65 to 74 years.
CONCLUSIONS:
Our results confirm the substantial public health consequences of prehypertension. If prehypertension were eliminated, hospitalizations, nursing home admissions, and premature deaths could decline substantially.
AuthorsLouise B Russell, Elmira Valiyeva, Jeffrey L Carson
JournalArchives of internal medicine (Arch Intern Med) Vol. 164 Issue 19 Pg. 2119-24 (Oct 25 2004) ISSN: 0003-9926 [Print] United States
PMID15505125 (Publication Type: Journal Article, Research Support, U.S. Gov't, P.H.S.)
Topics
  • Adult
  • Aged
  • Disease Progression
  • Female
  • Homes for the Aged (statistics & numerical data)
  • Hospitalization (statistics & numerical data)
  • Humans
  • Hypertension (epidemiology, mortality)
  • Male
  • Middle Aged
  • Models, Statistical
  • Nursing Homes (statistics & numerical data)
  • United States (epidemiology)

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