Figure 2.

Agreement between auscultatory and oscillometric, and intra-arterial blood pressure measurements: effect of BMI. Shown are graphs of measurement in (a) overweight (BMI ≤30 kg/m²) (b) obese (BMI >30 kg/m²) patients by auscultatory technique, and (c) overweight and (d) obese patients by oscillometric technique. The thicker line represents mean bias, and the thinner lines represent upper and lower limits of agreement. Squares are diastolic blood pressure measurement, diamonds are mean arterial blood pressure measurements, and circles are systolic blood pressure measurements. BMI, body mass index; IABP, intra-arterial blood pressure; NIBP, noninvasive blood pressure.