Skip to main content

Table 3 Multivariable-adjusted associations of ejection work density with blood pressure components and arterial properties

From: Area of the pressure-strain loop during ejection as non-invasive index of left ventricular performance: a population study

  Ejection work density (Pa)  
  All (n = 356) Men (n = 197) Women (n = 159)  
  Parameter estimate (95% CI) P value Parameter estimate (95% CI) P value Parameter estimate (95% CI) P value P int
Conventional (brachial) BP
 Systolic BP, + 16 mmHg 95.2 (76.8 to 113.6) < 0.0001 82.8 (58.6 to 107.0) < 0.0001 102.8 (74.7 to 130.9) < 0.0001 0.074
 Diastolic BP, + 9.5 mmHg 37.2 (17.0 to 57.4) 0.0003 28.0 (3.93 to 52.1) 0.023 52.3 (18.3 to 86.3) 0.0028 0.096
 Pulse pressure, + 13 mmHg 82.1 (63.9 to 100.3) < 0.0001 66.3 (43.2 to 89.4) < 0.0001 94.2 (65.2 to 123.3) < 0.0001 0.028
 MAP, +  10 mmHg 69.6 (50.8 to 88.4) < 0.0001 57.4 (33.6 to 81.1) < 0.0001 81.9 (52.4 to 111.5) < 0.0001 0.043
SphygmoCor indexes
 AP, +  9 mmHg 59.1 (31.5 to 86.6) < 0.0001 74.3 (33.2 to 115.2) 0.0005 50.0 (12.3 to 87.7) 0.0098 0.42
 Central PP, + 13 mmHg 65.7 (44.9 to 86.4) < 0.0001 65.3 (37.4 to 93.2) < 0.0001 62.5 (31.5 to 93.6) 0.0001 0.33
 PWV, 1.9 m/sa 44.8 (19.5 to 70.1) 0.0006 39.1 (7.87 to 70.3) 0.015 44.0 (1.82 to 86.2) 0.041 0.47
  1. The parameter estimates (95% confidence interval) indicate the change in EWD per 1 standard deviation increase in arterial index. All parameter estimates accounted for the variance explained by age, sex, heart rate and body height and weight. AP, central PP and PWV were additionally adjusted for MAP. Pint indicates the P values for an interaction between each arterial index and sex in predicting EWD. aData on arterial stiffness was available in 157 men and 117 women. AP indicates augmentation pressure, BP blood pressure, MAP mean arterial pressure, PP pulse pressure, PWV pulse wave velocity