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Table 1 Study collective’s baseline characteristics relating to the total number of hips affected by ONFH

From: Results of advanced core decompression in patients with osteonecrosis of the femoral head depending on age and sex—a prospective cohort study

Study collective—ONFH-hips totalN = 86
ONFH-occurrence (count), monolateral/bilateral56/15
Sex (count), male/female66/20
Age (years), mean ± SD/min./max.46.8 ± 12.2/21.8/69.7
Treatment type (count), ACD/mACD46/40
Follow-up (months), mean ± SD32.5 ± 24.8
  1. SD standard deviation