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Table 3 Summary of changes of all region perfusion responses by treatment and time under cold conditions

From: Evaluation of the effect of ambrisentan on digital microvascular flow in patients with systemic sclerosis using laser Doppler perfusion imaging: a 12-week randomized double-blind placebo controlled trial

  

Placebo

Ambrisentan

Measure

Change period

Change (95% CI)

Change P -value

Overall P -value

Change (95% CI)

Change P -value

Overall P -value

All

1 W - Base

−0.13 (−0.50,0.24)

0.47

0.62

0.07 (−0.15,0.28)

0.52

0.39

 

12 W - Base

−0.17 (−0.54,0.20)

0.35

 

−0.08 (−0.30,0.14)

0.46

 
 

12 W - 1 W

−0.04 (−0.41,0.33)

0.82

 

−0.15 (−0.37,0.07)

0.17

 

R1

1 W - Base

−0.07 (−0.40,0.25)

0.65

0.65

0.19 (−0.00,0.38)

0.054

0.036

 

12 W - Base

−0.15 (−0.48,0.18)

0.35

 

−0.06 (−0.25,0.13)

0.54

 
 

12 W - 1 W

−0.08 (−0.41,0.25)

0.64

 

−0.25 (−0.44,-0.05)

0.015

 

R2

1 W - Base

−0.05 (−0.45,0.36)

0.81

0.79

0.07 (−0.17,0.30)

0.56

0.33

 

12 W - Base

−0.13 (−0.54,0.27)

0.51

 

−0.11 (−0.35,0.13)

0.36

 
 

12 W - 1 W

−0.09 (−0.49,0.32)

0.67

 

−0.18 (−0.42,0.06)

0.14

 

R3

1 W - Base

−0.19 (−0.59,0.21)

0.35

0.54

0.07 (−0.16,0.30)

0.54

0.44

 

12 W - Base

−0.19 (−0.59,0.21)

0.33

 

−0.08 (−0.32,0.16)

0.50

 
 

12 W - 1 W

−0.01 (−0.41,0.39)

0.98

 

−0.15 (−0.39,0.09)

0.21

 

R4

1 W - Base

−0.22 (−0.69,0.25)

0.36

0.57

−0.05 (−0.32,0.22)

0.70

0.84

 

12 W - Base

−0.21 (−0.69,0.26)

0.37

 

−0.08 (−0.36,0.20)

0.57

 
 

12 W - 1 W

0.01 (−0.47,0.48)

0.98

 

−0.03 (−0.31,0.25)

0.84

 

Worst

1 W - Base

−0.11 (−0.43,0.20)

0.47

0.41

0.18 (−0.01,0.36)

0.058

0.031

 

12 W - Base

−0.21 (−0.53,0.11)

0.19

 

−0.07 (−0.26,0.12)

0.46

 
 

12 W - 1 W

−0.10 (−0.41,0.22)

0.54

 

−0.25 (−0.43,-0.06)

0.012

 
  1. The ROIs are mentioned as R1 to R4 along with the area of worst perfusion, measured over the study duration. P-values are from repeated measure analysis of variance models. Base = baseline; W = week; Worst = worst perfusion. CI, confidence interval; ROI, region of interest.