Comparison of Blood Pressure Measurement with Two Digital Sphygmomanometers

Aims: Identify the correlation between systolic and diastolic blood pressure measurement with digital arm and wrist baumanometers in young adults aged 18 to 40 at the Public University of Celaya, Guanajuato, Mexico.

Study Design: Observational, analytical, quantitative, correlational, diagnostics.

Place of Study: Public University of Celaya, Guanajuato, Mexico.

Methodology: We included 397 participants of an age range between 18 and 40 years; which 287 were women and 110 were men; with an average weight of 65.28 ± 15.08, and of stature 1.63 ± 0.09. Two types of digital, wrist and arm baumanometers were used to measure the systolic and diastolic blood pressure to observe the effectiveness of the values recorded during the measurement.

Results: The correlation between the 3 measurements of the systolic blood pressure was repeated in the first and third measurements (r = 0.46) and varied in the second (r = 0.39), in all three the value recorded by the highest arm baumanometer was found. In the 3 measurements of the diastolic blood pressure the correlation varied (r = 0.54, r = 0.50, r = 0.59); registering the highest value in the measurement with the arm baumanometer.

Conclusion: The correlation between the measurements with the baumanometers was not perfect, however it was good, it was considered that the measurement of blood pressure with the wrist baumanometer should be done with the wrist at the level of the heart; as well as movements of arm, hand or fingers will alter the result.