passages.id: split_1_test_530_passage
passages.type: progene_text
passages.text: There was no correlation between systolic differences and blood pressure or patients ' variables , but multiple regression analysis revealed that the diastolic blood pressure differences were negatively correlated with the aortic diastolic pressure ( r = 0.89 , p < 0.001 ) , indicating that the BPW is less accurate to detect lower values .