Table I.

Study characteristics.

Total number of trials	17
Age, yr, mean (range)	Aggregate: 48 (43-62) Physiotherapy vs. control: 46 (43-48) Corticosteroid vs. control: 49 (46-62); PRP vs. control: 47 (46-49); AB vs. control: 49 (46-52)
Duration of follow-up, months, median (range)	12 (6-12)
Outcome measures
Clinical Outcome Scores	Global Improvement Scale: 1 DASH: 6 PRFE: 1 Roles and Maudsley: 1 PFFQ: 4 Tennis Elbow Score: 1 Not reported: 3
Pain	VAS: 16 Nirschl/Petrone pain score:1

PRP, platelet-rich plasma; AB, autologous blood; VAS, visual analog scale; DASH, Disabilities of the Arm, Shoulder and Hand.