From: The efficacy and safety of platelet-rich fibrin for rotator cuff tears: a meta-analysis
Subgroup | No. trials | Relative risk (95% CI) | P value | I2 (%) | Test of interaction, P |
---|---|---|---|---|---|
Total | 7 | 1.30 (0.97, 1.75) | 0.082 | 0.0 | |
Operative technique | |||||
Single row | 2 | 1.65 (0.82, 2.77) | 0.069 | 0.0 | 0.106 |
Double row | 2 | 0.87 (0.55, 1.39) | 0.566 | 3.3 | |
Single or double row | 3 | 1.60 (0.92, 2.77) | 0.097 | 0.0 | |
Risk of bias | |||||
Low | 3 | 1.49 (0.99, 2.25) | 0.058 | 0.0 | 0.098 |
Unclear/high | 4 | 1.12 (0.73, 1.71) | 0.607 | 7.1 | |
Volume | |||||
< 5 ml | 1 | 1.77 (0.81, 3.87) | 0.150 | – | 0.152 |
≥ 5 ml | 3 | 1.40 (0.94, 2.10) | 0.097 | 0.0 | |
Unclear | 3 | 0.99 (0.59, 1.67) | 0.963 | 28.2 | |
Follow-up | |||||
< 15 months | 4 | 1.95 (0.87, 4.37) | 0.103 | 0.0 | 0.105 |
≥ 15 months | 3 | 1.37 (0.60, 3.10) | 0.449 | 0.0 | |
Size of rotator cuff tears | |||||
Small-medium | 3 | 0.77 (0.31, 1.86) | 0.271 | 0.0 | 0.226 |
Large-massive | 4 | 1.72 (0.64, 4.28) | 0.582 | 0.0 |