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Table 2 Comparison of the effect of gender, age, BMI, the surgeon’s experience, OA grade and OA symptom duration on the secondary outcome measurements, cup inclination and anteversion

From: Does body mass index affect restoration of femoral offset, leg length and cup positioning after total hip arthroplasty? A prospective cohort study

Cup inclination

OR

95% CI

p-value

Gender

 Male

1.00

Ref

 

 Female

1.18

0.50 to 2.75

0.71

Age

0.98

0.94 to 1.03

0.41

BMI

1.02

0.93 to 1.16

0.67

Surgeon

 Consultant

1.00

Ref

 

 Resident

1.11

0.42 to 2.94

0.84

OA grade

 K-L grade 1–2

1.00

Ref

 

 K-L grade 3–4

1.17

0.51 to 2.68

0.70

OA duration

  < 3 years

1.00

Ref

 

  ≥ 3 years

1.68

0.68 to 4.14

0.26

Cup anteversion

OR

95% CI

p-value

Gender

 Male

1.00

Ref

 

 Female

1.10

0.55 to 2.18

0.79

Age

0.97

0.94 to 1.01

0.13

BMI

0.97

0.90 to 1.05

0.49

Surgeon

 Consultant

1.00

Ref

 

 Resident

0.63

0.27 to 1.45

0.28

OA grade

 K-L grade 1–2

1.00

Ref

 

 K-L grade 3–4

0.88

0.45 to 1.72

0.71

OA duration

 < 3 years

1.00

Ref

 

 ≥ 3 years

0.94

0.47 to 1.88

0.85