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Table 6 Multivariable-adjusted association of diagnosis with each ADL limitation at two and five years after primary THA

From: Patients with osteoarthritis and avascular necrosis have better functional outcomes and those with avascular necrosis worse pain outcomes compared to rheumatoid arthritis after primary hip arthroplasty: a cohort study

 

Two years

Five years

 

ORa

95% CI

P-value

ORa

95% CI

P-value

Limitations in walkingb

      

 Osteoarthritis

0.7

(0.4,1.2)

0.21

0.8

(0.4,1.5)

0.43

 AVN

0.8

(0.4,1.7)

0.63

0.8

(0.4,1.8)

0.62

 Other

1.3

(0.6,2.7)

0.55

1.2

(0.5,3.1)

0.67

Limitations in climbing stairsb

      

 Osteoarthritis

0.6

(0.3,1.0)

0.07

0.5

(0.3,0.9)

0.03

 AVN

0.5

(0.3,1.1)

0.07

0.5

(0.2,1.0)

0.049

 Other

1.0

(0.5,2.1)

0.95

0.9

(0.4,2.2)

0.80

Limitations in putting on socks/shoesb

      

 Osteoarthritis

0.7

(0.4,1.1)

0.12

0.7

(0.4,1.3)

0.27

 AVN

0.5

(0.3,0.9)

0.03

0.9

(0.4,1.8)

0.72

 Other

1.6

(0.8,3.2)

0.16

2.0

(1.0,4.4)

0.07

Limitations in picking up objectsb

      

 Osteoarthritis

0.7

(0.4,1.1)

0.10

0.6

(0.3,1.1)

0.09

 AVN

0.6

(0.3,1.1)

0.08

0.8

(0.4,1.6)

0.50

 Other

1.1

(0.6,2.3)

0.73

1.5

(0.7,3.3)

0.30

Limitations in getting in/out of carb

      

 Osteoarthritis

1.0

(0.5,2.0)

0.98

0.8

(0.4,1.6)

0.53

 AVN

0.9

(0.4,2.0)

0.78

0.9

(0.4,2.1)

0.84

 Other

1.1

(0.4,2.9)

0.80

1.5

(0.6,3.7)

0.36

Limitations in rising from chairb

      

 Osteoarthritis

0.4

(0.2,0.9)

0.03

1.0

(0.4,2.5)

0.99

 AVN

0.4

(0.2,0.9)

0.04

1.3

(0.4,3.8)

0.66

 Other

0.7

(0.3,2.2)

0.59

1.4

(0.4,4.9)

0.56

Limitations in sittingb

      

 Osteoarthritis

N/A

  

N/A

  

 AVN

      

 Other

      
  1. aReference category is rheumatoid arthritis/inflammatory arthritis; bAdjusted for 16 additional covariates/confounders: age, gender, BMI, Deyo-Charlson comorbidity score, ASA class, distance from the medical center, cement fixation, preoperative limitation in seven activities, anxiety and depression; N/A, not applicable, since the model did not run for sitting, due to too few cases. ADL, activities of daily living; ASA, American Society of Anesthesiologists; AVN, avascular necrosis of bone; BMI, body mass index; CI, confidence interval; OR, odds ratio; RA, rheumatoid arthritis; THA, total hip arthroplasty.