Egyptian Journal of Radiology and Nuclear Medicine

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 score			Paired t test
	Mean ± SD	Range	Difference^a	Test value	P value	Sig.
Baseline	98.87 ± 8.70	88–116	–	–	–	–
4 weeks	91.73 ± 6.97	82–105	7.13 ± 2.39	11.577	0.000	HS
8 weeks	85.00 ± 6.35	76–97	6.73 ± 1.58	15.073	0.000	HS
12 weeks	76.07 ± 5.70	70–89	8.93 ± 2.87	16.310	0.000	HS
24 weeks	72.67 ± 4.91	67–82	3.40 ± 1.40	18.430	0.000	HS

P value > 0.05: nonsignificant; P value < 0.05: significant; P value < 0.01: highly significant
^aDifference was calculated from the previous reading

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