Table 4 The GRADE evidence quality for functional outcomes
Functional outcomes | Number of studies | Study design | Mean difference [95Â % CI] | P | P for heterogeneity | Quality |
|---|---|---|---|---|---|---|
Olerud and Molander Ankle Score | 4 [14,16,21,25] | Retrospective | 0.01 [−0.02, 0.03] | 0.56 | 0.09 | Low |
American Orthopaedic Foot and Ankle Surgery score | 2 [27,28] | Retrospective | 4.10 [0.03, 8.17] | 0.05 | 0.10 | Low |
Radiologic union | 3 [10,33,38] | RCT | −0.53 [−2.39, 1.34] | 0.58 | <0.00001 | Lowa,b |
8 [14,16,20,22,24,25,29,32] | Retrospective | −0.98 [−3.61, 1.66] | 0.47 | <0.00001 | Low |