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Characteristics of the three subject groups
| Group | FAI | C-high ≥ 55° | C-low < 55° |
|---|---|---|---|
| Number of subjects | 13 | 16 | 7 |
| Number of hips | 20 | 26 | 9 |
| Mean age (years) | 31 (95% CI, 26–36) | 50* (95% CI, 41–58) | 61* (95% CI, 50–71) |
* Mean age C-high p = 0.002, mean age C-low p = 0.000 with analysis of variance and Bonferroni post hoc analysis compared with FAI; FAI = femoroacetabular impingement; C-high = subjects with alpha angle ≥ 55°; C-low = subjects with alpha angle < 55°.
