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Table 4 Univariate Cox regression models for the potential risk factors for poor outcomes in the patients

From: As an unusual traumatic presentation, acetabular fracture and concomitant ipsilateral intertrochanteric femur fracture: a retrospective case series of 18 patients

Risk factors

 

HR

95% CI

p

Age (years)

 

0.959

0.890–1.033

0.269

Sex

Male (Ref.)

   

Female

1.293

0.139–11.994

0.821

Side

Left (Ref.)

   

Right

1.066

0.178–6.399

0.994

Aetiology

Traffic accident (Ref.)

   

Other

0.234

0.025–2.201

0.204

Dislocation of the hip

No (Ref.)

   

Yes

9.194

1.024–2.515

0.048

Time to surgery (days)

 

1.091

0.936–1.270

0.266

Evans classification for intertrochanteric fracture

2 or 3(Ref.)

   

4

1.005

0.111–9.057

0.997

Acetabular fracture site

Posterior wall (Ref.)

   

Other

0.443

0.049–3.987

0.468

Treatment for the acetabular fracture

Conservative or Resection (Ref.)

   

ORIF

0.828

0.137–5.005

0.837

Reduction quality of the acetabular fracture

Excellent-good (Ref.)

   

Fair-poor

2.002

0.333–12.043

0.448

  1. Note: For patients who underwent conversion to total hip arthroplasty, the survival time is the period between the time of fracture occurrence and the time of total hip arthroplasty. Survival events were defined in patients who did not undergo total hip arthroplasty and had a Harris score higher than 80 points at the last follow-up
  2. HR hazard ratio, CI confidence interval, ORIF open reduction and internal fixation