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Screening for hypertension annually compared with current practice

Gregory M Garrison1, Sara Oberhelman

  • 1Department of Family Medicine, Mayo Clinic, Rochester, MN 55905, USA. garrison.gregory@mayo.edu

Annals of Family Medicine
|March 20, 2013
PubMed

Insights

Annual blood pressure screening improves hypertension diagnosis specificity without reducing sensitivity. This strategy offers a more accurate approach compared to routine checks at every visit for adults without a prior hypertension diagnosis.

Area of Science:

  • Cardiology
  • Preventive Medicine
  • Public Health

Background:

  • Hypertension is a prevalent ambulatory diagnosis.
  • Current screening methods lack robust evidence on optimal intervals and diagnostic accuracy.
  • Routine blood pressure checks at every visit may yield transiently high readings in non-hypertensive individuals.

Purpose of the Study:

  • To evaluate the effectiveness of an annual blood pressure screening strategy versus routine screening at every visit.
  • To determine if annual screening can enhance the specificity of hypertension detection.
  • To assess if sensitivity is maintained with an annual screening approach.

Main Methods:

  • Retrospective case-control study design.
  • Involved 372 adults without hypertension and 68 newly diagnosed hypertensive patients.
  • Compared usual practice (blood pressure at every visit) with annual blood pressure measurement strategy.

Main Results:

  • Specificity increased significantly from 70.4% with usual practice to 82.0% with annual screening.
  • No statistically significant difference in sensitivity was observed between the two screening strategies.
  • Annual screening demonstrated improved diagnostic accuracy for hypertension.

Conclusions:

  • An annual screening strategy for hypertension is effective in improving specificity.
  • This approach maintains sensitivity, ensuring effective detection of hypertension.
  • Limited annual screening is a viable alternative to routine screening for previously normotensive adults.
Abstract

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