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Table 2 Multivariable* Predictors of Moderate-severe Pain

From: Predictors of pain and use of pain medications following primary Total Hip Arthroplasty (THA): 5,707 THAs at 2-years and 3,289 THAs at 5-years

  Multivariable-adjusted 2-year Multivariable-adjusted 5-year
  Odds Ratio (95% Confidence Interval) p-value Odds Ratio (95% Confidence Interval) p-value
Female Gender (Ref, Male) 1.1 (0.9, 1.4) 0.30 1.2 (0.9, 1.5) 0.18
Age (Ref, ≤ 60 yrs)       
   >60-70 yrs 0.7 (0.6, 1.0) 0.06 0.8 (0.6, 1.1) 0.17
   >70-80 yrs 1.1 (0.8, 1.6) 0.45 0.8 (0.6, 1.2) 0.32
   >80 yrs 1.5 (1.0, 2.3) 0.07 0.6 (0.3, 1.1) 0.11
BMI (Ref, <25 kg/m2)       
   25-29.9 1.0 (0.7, 1.3) 1.00 1.5 (1.1, 2.1) 0.02
   30-34.9 1.3 (1.0, 1.8) 0.07 1.8 (1.2, 2.6) <0.01
   35-39.9 1.8 (1.2, 2.6) <0.01 1.9 (1.2, 3.1) 0.01
   ≥ 40 1.7 (1.0, 2.9) 0.04 3.1 (1.7, 5.7) <0.01
Deyo-Charlson index ( 5-point change) 1.0 (0.8, 1.3) 0.98 0.9 (0.7, 1.3) 0.75
Anxiety (Ref, no) 0.9 (0.5, 1.4) 0.58 1.1 (0.6, 2.1) 0.76
Depression (Ref, no) 2.1 (1.4, 3.0) <0.01 1.3 (0.8, 2.2) 0.30
  1. *Adjusted for ASA score, distance from the medical center, income and the operative diagnosis, in addition to the above variables
  2. Regression: n/N = 409/5,154 at 2-yr FU; n/N = 318/2,929 at 5-yr FU; Numbers in Bold indicate significant Odds ratios and p-values