Table 2 Biases and limits of agreement between blood pressure measurement techniques for each level of blood pressure: effect of BMI. Parenthesis indicate upper and lower limits of agreement
From: Arterial blood pressure monitoring in overweight critically ill patients: invasive or noninvasive?
Arterial blood pressure | BMI <30 kg/m2 (n = 24) | BMI >30 kg/m2 (n = 30) |
|---|---|---|
Systolic (mmHg) | ||
Auscultatory | -16.0 ± 8.1 (+61.8 to -93.8) | 0.1 ± 3.8 (+40.8 to -40.7) |
Oscillometric | -16.7 ± 7.3 (+53.0 to -86.4) | -13.3 ± 3.4 (+23.1 to -49.6) |
Diastolic (mmHg) | ||
Auscultatory | 10.0 ± 3.3 (+41.6 to -21.5) | 11.9 ± 2.9 (+43.7 to -20.0) |
Oscillometric | 1.3 ± 2.3 (+23.4 to -20.9) | -7.8 ± 2.9 (+24.2 to -39.8) |
Mean (mmHg) | ||
Auscultatory | 3.7 ± 4.7 (+48.7 to -44.4) | 11.2 ± 3.0 (+43.7 to -21.2) |
Oscillometric | -2.3 ± 3.2 (+32.5 to -37.5) | -12.3 ± 1.7 (+6.7 to -31.3) |