Pre- and Postoperative Evaluation by Photoplethysmography in Patients Receiving Surgery for Lower-Limb Varicose Veins
Table 2
Results of descriptive statistical tests (CH-Botucatu FM, SP, 2012).
Groups compared
Test
Value
Probability
Significance
Pre-wo/t × pre-t/t × pre-g/p
Friedman
38.413
<0.0001
Significant
Pre-wo/t × pre-t/t
Dunn’s*
−47.000
<0.001
Significant
Pre-wo/t × pre-t/l
Dunn’s*
−47.500
<0.001
Significant
Pre-t/t × pre-t/l
Dunn’s*
0.500
>0.050
Not significant
Post-wo/t × post-wo/t
Wilcoxon
−818.000
<0.0001
Significant
Post-t/t × post-wo/t
Wilcoxon
−457.000
0.0015
Significant
Pre-t/l × post-wo/t
Wilcoxon
−566.000
0.0003
Significant
Dunn’s multiple comparison. Pre-wo/t: preoperative without tourniquet; pre-t/t: preoperative with tourniquet on thigh; pre-t/l: preoperative with tourniquet on leg; post-wo/t: postoperative without tourniquet.