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Table 3 Correlation analysis for the whole series

From: Randomized controlled trial comparing the effectiveness of the ultrasound-guided galvanic electrolysis technique (USGET) versus conventional electro-physiotherapeutic treatment on patellar tendinopathy

CORRELATIONS     
  VISA-P Last Eval.
TOTAL Group 1 (Electro-physiotherapy) VISA-P Initial Eval. (r) 0,774
(r2) 0,599 (59,9%)
p (value) 0,000
Group 2 (USGET) VISA-P Initial Eval. (r) 0,57
(r2) 0,325 (32,5%)
p (value) 0,001
TOTAL VISA-P Initial Eval. (r) 0,676
(r2) 0,457 (45,7%)
p (value) 0,000
VISA-P < 90 Final Eval. Group 1 (Electro-physiotherapy) VISA-P Initial Eval. (r) 0,88
(r2) 0,774 (77,4%)
p (value) 0,000
Group 2 (USGET) VISA-P Initial Eval. (r) 0,818
(r2) 0,669 (66,9%)
p (value) 0,013
TOTAL VISA-P Initial Eval. (r) 0,859
(r2) 0,738 (73,8%)
p (value) 0,000
VISA-P ≥ 90 Final Eval. Group 1 (Electro-physiotherapy) VISA-P Initial Eval. (r) −0,491
(r2) 0,241 (24,1%)
p (value) 0,125
Group 2 (USGET) VISA-P Initial Eval. (r) −0,136
(r2) 0,018 (1,8%)
p (value) 0,548
TOTAL VISA-P Initial Eval. (r) −0,262
(r2) 0,069 (6,9%)
p (value) 0,140
  1. Victorian Institute of Sport Assessment-Patella (VISA-P). Pearson Correlation Coefficient (r). Coefficient of Determination (r2) (% of Variance Explained). p = non-parametric Wilcoxon test