Table 2 Reliability of the Garden Index measurement among three observers for 110 patients with Garden III type femoral neck fractures (°)
Observer A | Observer B | Observer C | |
|---|---|---|---|
Min value (1st measure) | 91 | 91 | 91 |
Min value (2nd measure) | 91 | 91 | 91 |
Max value (1st measure) | 158 | 158 | 158 |
Max value (2nd measure) | 158 | 156 | 158 |
Mean (1st measure) | 137 | 137 | 137 |
Mean (2nd measure) | 137 | 137 | 137 |
Std deviation (1st measure) | 14 | 14 | 14 |
Std deviation (2nd measure) | 12 | 13 | 14 |
Spearman correlation coefficient (P < 0.001) | 0.94 | 0.98 | 0.96 |