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.