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Table 3 (a) Hazard ratios of the risk factors associated with death from cause-specific hazard analysis based on Cox’s model; (b) sub-distribution hazard ratios of the risk factors associated with the first reoperation, and (c) the medical complication based on Fine and Gray’s (sub-distribution hazard) model from competing risk analysis

From: Outcomes after fixation for undisplaced femoral neck fracture compared to hemiarthroplasty for displaced femoral neck fracture among the elderly

  

(a) Death

(b) Reoperation

(c) Medical complication

  

HR

95 % Cl

 

p-value

Sub-HR

95 % Cl

 

p-value

Sub-HR

95 % Cl

 

p-value

Age

Years

1.063 (1.061, 1.065)

< .0001

0.990 (0.987, 0.994)

< .0001

1.041 (1.037, 1.045)

< .0001

Operation

Fixation

1(REF.)

 

1(REF.)

 

1(REF.)

 
 

Hemiarthroplasty

1.085 (1.051, 1.121)

< .0001

0.738 (0.701, 0.776)

< .0001

1.080 (1.019, 1.145)

0.009

Gender

Female

1(REF.)

 

1(REF.)

 

1(REF.)

 
 

Male

1.423 (1.378, 1.471)

< .0001

1.019 (0.968, 1.073)

0.470

1.749 (1.649, 1.854)

< .0001

CCIa

0

1(REF.)

 

1(REF.)

 

1(REF.)

 
 

1

1.529 (1.467, 1.594)

< .0001

1.000 (0.940, 1.064)

0.997

4.536 (4.114,5.001)

< .0001

 

2

2.005 (1.912, 2.102)

< .0001

0.927 (0.858, 1.001)

0.053

5.607 (5.065, 6.207)

< .0001

 

3

2.339 (2.208, 2.477)

< .0001

0.875 (0.791, 0.969)

0.010

6.416 (5.739, 7.173)

< .0001

 

≧4

3.534 (3.330, 3.750)

< .0001

0.913 (0.818, 1.020)

0.107

7.818 (7.000, 8.733)

< .0001

  1. aCharlson comorbidity index
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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