Table 2.
Associations between pulse pressures and cardiac output with parameters of iK in the linear and rotational dimensions.
| LV PP (mmHg) | Ao PP (mmHg) | Fem PP (mmHg) | PA PP (mmHg) | CO (L/min) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coefficient | 95% CI | p-value | Coefficient | 95% CI | p-value | Coefficient | 95% CI | p-value | Coefficient | 95% CI | p-value | Coefficient | 95% CI | p-value | |
| SCG Lin CC (μJ·s) | 0.14 | 0.07; 0.2 | <0.0001 | 0.06 | 0.03; 0.09 | <0.001 | 0.09 | 0.02; 0.15 | 0.01 | 0.002 | −0.001; 0.005 | 0.29 | 8.1 | 3.0; 13.2 | 0.002 |
| SCG Lin Sys (μJ·s) | 0.02 | 0.08; 0.3 | <0.0001 | 0.08 | 0.04; 0.11 | <0.001 | 0.12 | 0.03; 0.19 | 0.005 | 0.002 | −0.001; 0.006 | 0.16 | 11.7 | 5.6; 17.8 | <0.0001 |
| SCG Lin Dia (μJ·s) | 0.2 | 0.02; 0.37 | 0.03 | 0.05 | −0.04; 0.14 | 0.26 | 0.04 | −0.14; 0.22 | 0.65 | −0.001 | −0.009; 0.007 | 0.78 | 2.2 | −11.2; 15.6 | 0.75 |
| SCG rot CC (nJ·s) | 4.40 | 2.08; 6.72 | <0.0001 | 1.49 | 0.4; 2.60 | 0.008 | 2.28 | 0.02; 4.53 | 0.05 | 0.06 | −0.35; 15.2 | 0.22 | 2.5 | 0.8; 42.0 | 0.004 |
| SCG Rot Sys (nJ·s) | 5.56 | 2.89; 8.22 | <0.0001 | 2.16 | 0.9; 3.37 | 0.001 | 3.32 | 0.7; 5.89 | 0.01 | 0.08 | −0.03; 0.18 | 0.14 | 3.5 | 1.5; 5.4 | <0.0001 |
| SCG Rot Dia (nJ·s) | 6.10 | −3.03; 15.2 | 0.19 | −3.36 | −8.32; 1.60 | 0.18 | −3.35 | −13.3; 6.63 | 0.51 | −0.08 | −0.5; 0.36 | 0.72 | −0.7 | −7.8; 6.2 | 0.83 |
iK SCG Lin-Rot, integral of kinetic energy of seismocardiography in the linear and rotational dimension, respectively; CC–Sys–Dia, cardiac cycle–systolic phase–diastolic phase; LV PP, left ventricle pulse pressure; Ao PP, aortic pulse pressure; Fem PP, femoral pulse pressure; PA PP, pulmonary artery pulse pressure.