[Retracted] Anatomic Risk Factors for Osteochondral Fracture of Acute First-Time Patellar Dislocation in Adolescents: A Retrospective Magnetic Resonance Imaging Study

Table 1

Comparison of demographics between two groups.

Variable	Group A (n = 65)	Group B (n = 29)	value
Mean age, years	15.14 ± 2.04	14.59 ± 2.04	0.228
Gender, n (%)			0.164
Boy	37 (56.9%)	12 (41.4%)
Girl	28 (43.1%)	17 (58.6%)
Side of injury, n (%)			0.545
Left	29 (44.6%)	11 (37.9%)
Right	36 (55.4%)	18 (62.1%)
Injury reason, n (%)			0.726
Sports	37 (56.9%)	14 (48.3%)
Daily activity	16 (24.6%)	9 (31.0%)
Unknown	12 (18.5%)	6 (20.7%)
First-time APD to MRI time (days)	8.43 ± 4.53	6.97 ± 3.70	0.130