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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.