Evidence analysis on the utilization of platelet-rich plasma as an adjuvant in the repair of rotator cuff tears

Table 5 I² statistic values of variables analyzed in each meta-analysis

Sl. No	Outcome variables	Chahal (2012)	Zhang (2013)	Moraes (2013)	Li (2014)	Zhao (2015)	Warth (2015)	Vavken (2015)	Cai (2015)	Xiao (2016)	Hurley (2018)	Han (2019)	Wang (2019)	Chen (2019)	Hurley (2020)	Yang (2020)	Cavendish (2020)	Zhao (2021)	Ryan (2021)	Xu (2021)	Li (2021)
1	VAS Score – Short term			29.9%+						0%-	38%-		0%-			60.5%+		0%+	0%+	0%+
2	VAS Score – Long term			67%-			0%-			0%-	0%-	0%+	0%-	87.5%-	0%+	0%-		0%+		4%+	63%+
3	DASH Score – Short term									0%-			32%-			30%-
4	DASH Score – Long term			0%-						NR-			0%-			0%-					32%-
5	Constant Score – Short term									30%+			0%+			0%+				23%+
6	Constant Score – Long term	NR-	17%-	50%+	86%-	0%-	26%-		0%-	0%-	0%-	0%+	0%-	30.7%+	0%+	0%-		19%+	36%+	47%+	0%+
7	UCLA Score – Short term									0%+			8.9%+			0%+				0%+
8	UCLA Score – Long term	NR-	0%-	35.18%-	75%-	0%-	0%-		60%-	47%-	0%-	47%+	12%+		0%+	0%-		49%+	64.18%-	63%+	46%+
9	ASES Score		0%-	0%-	46%-		58%-		0%-	54%-	0%-	26%-						0%-	41%-	52%-	0%+
10	SST Score	NR-	47%-	0%+	90%-		0%-		0%-	47%-		0%+							0%+		0%-
11	Operative time									85%-
12	Patient Satisfaction			0%-						0%-
13	Tendon healing rate								0%+	0%-					0%+			10%-
14	Retear rate – Short term		0%-	25%+				15.2%-		30%-			0%+					0%+		0%-
15	Retear rate – Long term	0%+	11%-	14%-	22%-	43%-		0%-	0%-	71%-		0%+	0%-	0%+	0%+	0%+	0%+	0%+	NA+	4.7%+	22%+

ASES: American Shoulder and Elbow Surgeons; DASH: Disabilities of the Arm, Shoulder and Hand; SST: Simple Shoulder Test; UCLA: University of California Los Angeles; VAS: Visual analog scale.