Table 3. Model of Change
Peak S velocity Diastolic velocity Mean velocity VTI S vel: D vel ratio Pulsatility index Change over time 0.0118* 0.0023* 0.1376 0.2185 0.0001* 0.0009* Left vs Right 0.4393 0.0186* 0.2121 0.1797 0.0003* 0.0004* Pattern of change 0.6855 0.3254 0.3813 0.6492 0.1076 0.2931
Diastolic (D), systolic (S), velocity time integral (VTI) Numbers represent P values for three components. “Change over time” examines whether the variables altered over time, regardless of which PA (left or right); “Left vs Right” examines whether there were consistent differences between the pulmonary artery sides, irrespective of time; “Pattern of change” examines whether the trajectory of change over time differed between the right and left pulmonary arteries. All models were adjusted for patient age. Diastolic (D), systolic (S), velocity time integral (VTI) Numbers represent P values for three components. “Change over time” examines whether the variables altered over time, regardless of which PA (left or right); “Left vs Right” examines whether there were consistent differences between the pulmonary artery sides, irrespective of time; “Pattern of change” examines whether the trajectory of change over time differed between the right and left pulmonary arteries. All models were adjusted for patient age. Diastolic (D), systolic (S), velocity time integral (VTI) Numbers represent P values for three components. “Change over time” examines whether the variables altered over time, regardless of which PA (left or right); “Left vs Right” examines whether there were consistent differences between the pulmonary artery sides, irrespective of time; “Pattern of change” examines whether the trajectory of change over time differed between the right and left pulmonary arteries. All models were adjusted for patient age. Diastolic (D), systolic (S), velocity time integral (VTI) Numbers represent P values for three components. “Change over time” examines whether the variables altered over time, regardless of which PA (left or right); “Left vs Right” examines whether there were consistent differences between the pulmonary artery sides, irrespective of time; “Pattern of change” examines whether the trajectory of change over time differed between the right and left pulmonary arteries. All models were adjusted for patient age.