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Table 3 Interaction and stratified analyses between alignment techniques (MA as reference) and KSS score

From: How to choose kinematic or mechanical alignment individually according to preoperative characteristics of patients?

Subgroup β, 95% CI P-value P-value for interaction
Sex    0.684
 Male 1.01 (−1.06, 2.08) 0.793  
 Female 1.48 (−4.89, 6.92) 0.813  
Age, years    0.076
  < 65 1.53 (−2.40, 5.45) 0.793  
  ≥ 65 1.07 (−1.30, 2.76) 0.452  
BMI, kg/m^2    0.028*
  < 30 1.48 (−1.81, 5.17) 0.274  
  ≥ 30 −1.66 (−4.08, −0.46) 0.039*  
Preoperative HKA angle    0.013*
  < 10° varus 0.52 (−0.99, 0.95) 0.983  
  ≥ 10° varus 2.44 (0.53, 4.63) 0.042*  
Preoperative ROM    0.668
  < 90° 0.82 (−1.74, 2.59) 0.702  
  ≥ 90° 0.42 (−2.48, 3.31) 0.78  
Preoperative total KSS    0.583
 Tertile low −0.84 (−2.04, −0.15) 0.328  
 Tertile middle 1.04 (−0.12, 3.21) 0.565  
 Tertile high 0.21 (−2.13, 2.55) 0.859