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Table 1 Patient demographics

From: Analysis of the natural collapse course of non-traumatic osteonecrosis of the femoral head based on the matrix model

Demographic

 

Patients (M/F)

127

Male

86

Female

41

Mean age (range), y

50.20 ± 12.76

BMI (\(\bar{x}\) ± s, kg/m2)

22.94 ± 2.54

invasive hip

 

Unilateral

52

Bilateral

75

etiology

 

alcohol

13

Corticosteroids

48

idiopathic

66

  1. All qualitative variables are presented as numbers except age and BMI, which are presented as mean ± standard deviation
  2. BMI body mass index
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X