Table 4 The results of the ROC curve analysis determining predictive power of PPV indicators of unfavorable outcome at 30- and 90-days period after stroke onset.

From: Significance of pulse pressure variability in predicting functional outcome in acute ischemic stroke: a retrospective, single-center, observational cohort study

PP parameter

30 days outcome

90 days outcome

AUC

AUC CI

C-f*

YI†

p

AUC

AUC CI

C-f*

YI†

p

PP CV

0.619

0.538–0.699

22

0.25

0.004

0.608

0.526–0.689

22

0.29

0.01

PP SV

0.659

0.582–0.736

16

0.27

0.000

0.659

0.581–0.738

16

0.29

0.000

PP MSC

0.661

0.584–0.737

39

0.26

0.000

0.659

0.58–0.737

39

0.26

0.000

PP DMM

0.669

0.593–0.744

45

0.26

0.000

0.669

0.591–0.746

51

0.3

0.000

PP ARV

0.649

0.571–0.726

14

0.25

0.000

0.648

0.568–0.727

14

0.28

0.000

PP SD

0.675

0.598–0.751

15

0.29

0.000

0.664

0.585–0.742

15

0.3

0.000

  1. *C-f = Cut-off point.
  2. †YI = Youden’s Index.
  3. ARV: average real variability; AUC: area under the curve; CI: confidence interval; CV: coefficient of variation; DMM: difference maximum-minimum; MSC: maximal successive change; PP: pulse pressure; PPV: pulse pressure variability; SD: standard deviation; SV: successive variation.
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