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Table 1 Comparison between the baseline SPADI score and its follow-up at 4, 8, 12, and 24 weeks

From: Ultrasound-guided injection of platelet-rich plasma (PRP) in rotator cuff tendinopathy: effect on patients’ symptoms and supraspinatus tendon thickness

 SPADI scorePaired t test
Mean ± SDRangeDifferenceaTest valueP valueSig.
Baseline98.87 ± 8.7088–116
4 weeks91.73 ± 6.9782–1057.13 ± 2.3911.5770.000HS
8 weeks85.00 ± 6.3576–976.73 ± 1.5815.0730.000HS
12 weeks76.07 ± 5.7070–898.93 ± 2.8716.3100.000HS
24 weeks72.67 ± 4.9167–823.40 ± 1.4018.4300.000HS
  1. P value > 0.05: nonsignificant; P value < 0.05: significant; P value < 0.01: highly significant
  2. aDifference was calculated from the previous reading