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January 1, 1996Clinical and Experimental Hypertension

Prevalence of Hypertension and Rate of Blood Pressure Control as Assessed by Home Blood Pressure Measurements in a Rural Japanese Community, Ohasama

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Why the study?

Do home blood pressure measurements identify different rates of hypertension and blood pressure control compared to screening measurements in a community population?

Population

1334 subjects from a rural Japanese community, mean age 53.8 +/- 17.3 years. 314 were taking…

Comparison

Home blood pressure measurements vs Screening (casual) blood pressure measurements

Design

Cross-sectional

Authors

KNKenichi NagaiKansai Electric Power (Japan)ITIchiro TsujiPreventive CardiologyTOTakayoshi OhkuboIwate Medical University

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Implication

Home BP reveals white coat hypertension in ~30% of screened cases; leaves open optimal integration of home monitoring into community screening.

Key Points

  • To evaluate the prevalence of definite hypertension, white coat hypertension, and the effectiveness of blood pressure control by comparing home measurements with clinic screening.
  • Conducted a cross-sectional community survey of 1,334 participants (mean age 53.8 ± 17.3 years; 314 treated, 1,020 untreated) in northern Japan.
  • Recorded clinic screening blood pressure alongside repeated home measurements (mean frequency 20.8 ± 8.3 times; minimum 3 times), defining home hypertension as systolic ≥144 mmHg and/or diastolic ≥89 mmHg.
  • Screening classified 112 participants as hypertensive, but home readings identified only 37.5% (42/112) as hypertensive and 26.8% (30/112) as normotensive or lower; conversely, 7.2% (73/1,018) of screened normotensives were hypertensive at home.
  • Among 314 treated participants, 14.3% were hypertensive by screening versus 28.0% by home readings, with only 44.4% (20/45) of screened hypertensive cases confirmed at home.
  • Among 67 untreated participants identified as hypertensive by screening, only 32.8% (22/67) met home hypertension criteria, while 29.9% (20/67) were normotensive, indicating white coat hypertension.

Structured PICO

Do home blood pressure measurements identify different rates of hypertension and blood pressure control compared to screening measurements in a community population?

P
Population
1334 subjects from a rural Japanese community (Ohasama), mean age 53.8 +/- 17.3 years (range 8-91 years). 314 were taking antihypertensive drugs and 1020 were not.
I
Intervention
Home blood pressure measurements (at least 3 times)
C
Comparator
Screening (casual) blood pressure measurements
O
Outcome
Prevalence of definite hypertension, white coat hypertension, and success of blood pressure controlsurrogate

Home blood pressure monitoring reveals significant discrepancies with casual screening, identifying many cases of white coat hypertension and altering the perceived rate of blood pressure control.

Cite This Study

Nagai et al. (1996) studied this question.

synapsesocial.com/papers/6a7f31a4e052db6f994a562ehttps://doi.org/10.3109/10641969609081776

Topics

Hypertension management
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Home Blood Pressure Determination1974 · 127 citations
  2. 2"White coat" versus "sustained" borderline hypertension in Tecumseh, Michigan.1990 · 272 citations
  3. 3Home blood pressure determination. Value in borderline ("labile") hypertension1974 · 134 citations
  4. 4Home Blood Pressure Recording1986 · 26 citations
  5. 5Average daily blood pressure, not office blood pressure, determines cardiac function in patients with hypertension1989 · 78 citations