Quantitative Assessment of Blood Pressure Measurement Accuracy and Variability from Visual Auscultation Method by Observers without Receiving Medical Training

<div>Within-observer measurement variabilities (SD of three repeated measurements on each Korotkoff recording) of SBP (a) and DBP (b) from the two measurement techniques: traditional manual auscultatory method of listening for Korotkoff sounds and visual auscultation method by visualizing the Korotkoff sound waveform. The average measurement variability across the 30 Korotkoff recordings is plotted individually for each observer.</div>

BioMed Research International

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Figure 3

Figure 3: Quantitative Assessment of Blood Pressure Measurement Accuracy and Variability from Visual Auscultation Method by Observers without Receiving Medical Training 

Figure 3 | Quantitative Assessment of Blood Pressure Measurement Accuracy and Variability from Visual Auscultation Method by Observers without Receiving Medical Training 