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Table 5 Competing risk-adjusted Models for revision risk adjusting for risk of death

From: Clinically important improvement thresholds for Harris Hip Score and its ability to predict revision risk after primary total hip arthroplasty

 

Hazards of THA Revision (95 % CI)

P-value*

Hazards of THA Revision (95 % CI)

P-value*

 

2-year data

 

5-year data

 
 

N = 3151 with 88 events

 

N = 2461 with 71 events

 

Harris Hip Score categories

    

  ≤ 55 vs. 81–100

3.90 (2.67,5.69)

< 0.001

2.48 (1.56,3.95)

< 0.001

 56–63 vs. 81–100

2.24 (1.45,3.46)

< 0.001

2.04 (1.25,3.32)

< 0.001

 64–71 vs. 81–100

2.36 (1.60,3.49)

< 0.001

2.78 (1.72,4.48)

< 0.001

 72–80 vs. 81–100

2.18 (1.61,2.94)

< 0.001

2.43 (1.70,3.460

< 0.001

Harris Hip Score clinical categories

    

  < 70 vs. 90–100

3.40 (2.59,4.45)

< 0.001

2.65 (1.92,3.66)

< 0.001

 70–79 vs. 90–100

2.66 (1.92,3.68)

< 0.001

2.88 (1.96,4.25)

< 0.001

 80–89 vs. 90–100

2.02 (159,2.57)

< 0.001

1.64 (1.21,2.24)

< 0.001

 

N = 1011 with 13 events

 

N = 583 with 5 events

 

Improvements in Harris Hip Score

    

  ≤ 0 vs. 51–75

2.48 (1.00,6.14)

0.05

2.30 (0.46,11.61)

0.31

 1–20 vs. 51–75

0.99 (0.38,2.57)

0.98

1.97 (0.63,6.15)

0.24

 21–50 vs. 51–75

0.68 (0.40,1.15)

0.15

0.92 (0.42,2.02)

0.84