Skip to main content

Table 6 Results of logistic regression models – factors associated with having discussed TJR

From: Which disease-related factors influence patients’ and physicians’ willingness to consider joint replacement in hip and knee OA? Results of a questionnaire survey linked to claims data

VariableReferenceOR hip95% CI hipp-Value hipOR knee95% CI kneep-Value knee
Age, yearsper 10 years increase0.9(0.72; 1.12)0.351.23(1.07; 1.42)< 0.01
Sex femaleMale0.87(0.54; 1.41)0.580.69(0.51; 0.94)0.02
BMI > =35 kg/m2a< 35 kg/m20.45(0.18; 1.11)0.081.21(0.75; 1.95)0.44
Symptom duration, yearsbper 5 years increase1(0.9; 1.12)0.961.08(1; 1.15)0.04
Deterioration of symptoms in last 2 yearsano change/improvement1.1(0.66; 1.84)0.722.02(1.44; 2.84)< 0.01
WOMACaper 10 units increase1.04(0.91; 1.18)0.571.29(1.17; 1.42)< 0.01
Any impact on personal lifeaNo impact2.65(1.29; 5.46)0.012.32(1.5; 3.6)< 0.01
WHO-5aper 10 units increase1.03(0.93; 1.15)0.590.91(0.85; 0.97)0.01
Orthopaedist is treatingaOther physician is treating1.54(0.9; 2.62)0.111.58(1.1; 2.28)0.01
NSAID prescriptionaNo1.39(0.84; 2.3)0.201.3(0.93; 1.82)0.13
Opioid prescriptionaNo0.99(0.46; 2.15)0.981.64(0.99; 2.7)0.05
Physical therapy prescriptionaNo0.99(0.6; 1.64)0.971.08(0.77; 1.52)0.66
Already having one artificial jointNo4.19(2.1; 8.33)< 0.013.3(2.06; 5.28)< 0.01
  1. aadjusted for age, sex, symptom duration
  2. badjusted for age, sex
  3. Results of 12 multiple logistic regression models with “TJR was discussed” as independent variable. Bold values indicate statistically significant associations