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Table 5 Hazard ratios for 90-day mortality for the ASA class and BMI subcohort consisting of 15,226 individuals

From: Early postoperative mortality after simultaneous or staged bilateral primary total hip arthroplasty: an observational register study from the swedish Hip arthroplasty register

 

Crude

Adjusted

 

HR

CI (95%)

p

HR

CI (95%)

p

Time interval

      

Simultaneous

1.0

0.1-7.1

0.97

1.4

0.2-10.6

0.75

≤6 months

0.5

0.1-2.3

0.41

0.7

0.2-2.9

0.61

7-12 months

0.8

0.3-2.2

0.61

0.9

0.3-2.5

0.78

>12 months (ref)a

1.0

-

-

1.0

-

-

BMI

1.0

0.9-1.1

0.83

1.0

0.9-1.1

0.76

ASA

      

1(ref)

1.0

-

-

1.0

-

-

2

2.3

0.7-7.7

0.19

3.0

0.7-13.0

0.15

3-5

6.6

1.9-22.9

0.003

8.2

1.8-37.3

0.006

Sex

      

Male

1.0

-

-

1.0

-

-

Female

0.8

0.4-1.5

0.45

0.4

0.4-1.5

0.40

Fixation

      

Cemented (ref)

1.0

-

-

1.0

-

-

Uncemented

0.4

0.1-1.6

0.18

0.5

0.1-2.0

0.30

Otherb

0.7

0.3-2.1

0.56

0.8

0.3-2.4

0.73

  1. Adjustment for sex, ASA, BMI, and type of prosthesis fixation.
  2. aRef: reference group.
  3. bHybrid, reversed hybrid, and resurfacing.
  4. Number of events 32.
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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