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Table 1 Demographics of the two study groups

From: Residual hip dysplasia in children: osseous and cartilaginous acetabular angles to guide further treatment—a pilot study

ParametersStudy groupControl group
Number of patients20 (40 hips)10 (20 hips)
Age (months)50 ± 18.2 (18–92)68 ± 23 (37–98)
Gender (male)37
Bilateral RHD11 children 
Right hip RHD4 children 
Left hip RHD5 children 
  1. Age is expressed as mean ± SD and range in parentheses, RHD residual hip dysplasia