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Table 3 Univariate association of diagnosis with ADL limitation and pain 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

 

Diagnosis

 

RA/ inflammatory arthritis

OA

AVN

Other

Overall moderate-severe ADL limitation

    

Two-year follow-up

67/140 (47.9%)

1384/4714 (29.4%)

115/389 (29.6%)

83/192 (43.2%)

 P-value compared to RA group

 

<0.01

<0.01

0.43

Five-year follow-up

45/97 (46.4%)

911/2648 (34.4%)

77/246 (31.3%)

62/139 (44.6%)

 P-value compared to RA group

 

0.01

0.02

0.79

Moderate-severe hip pain

    

Two-year follow-up

7/142 (4.9%)

355/4676 (7.6%)

47/378 (12.4%)

26/194 (13.4%)

 P-value compared to RA group

 

0.02

0.24

0.01

Five-year follow-up

7/93 (7.5%)

270/2651 (10.2%)

37/244 (15.2%)

25/142 (17.6%)

 P-value compared to RA group

 

0.07

0.41

0.03

  1. Reference category is rheumatoid arthritis/inflammatory arthritis and P-values were obtained from univariate logistic regression models. Numbers in bold represents significant p-value <0.05. ADL, activities of daily living; AVN, avascular necrosis of bone; OA, osteoarthritis; RA, rheumatoid arthritis; THA, total hip arthroplasty.