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Evaluating measurement error in readings of blood pressure for adolescents and young adults

Shawn Bauldry1, Kenneth A Bollen, Linda S Adair

  • 1University of Alabama at Birmingham , Birmingham, Alabama , USA.

Blood Pressure
|December 31, 2014
PubMed

Insights

Combining multiple blood pressure readings requires careful consideration. Averaging readings offers high validity, outperforming complex methods for adolescents and young adults in the Philippines.

Area of Science:

  • Epidemiology
  • Biostatistics
  • Health Sciences

Background:

  • Blood pressure readings are prone to measurement error.
  • Optimal methods for combining multiple readings are not well-established.
  • Understanding measurement error is crucial for accurate health assessments.

Purpose of the Study:

  • To assess sources of measurement error in blood pressure readings.
  • To evaluate methods for combining multiple blood pressure readings.
  • To examine measurement patterns across sex and time in adolescents/young adults.

Main Methods:

  • Utilized data from the Cebu National Longitudinal Health and Nutrition Study.
  • Collected three sets of blood pressure readings over 2-year intervals for 2127 participants.
  • Employed Multi-trait, Multi-method (MTMM) structural equation models to decompose measurement error.

Main Results:

  • Identified differences in blood pressure measurement properties by sex and over time.
  • Demonstrated that measurement error can be decomposed into systematic and random components.
  • Found that averaging blood pressure readings showed high validity.

Conclusions:

  • Combining multiple blood pressure readings should be tailored based on sex and time.
  • The simple average of blood pressure readings is a valid and effective method.
  • This finding has implications for accurate longitudinal health monitoring and epidemiological studies.

Keywords:
Blood pressureblood pressure readingsmeasurement error

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