Table 4b.

Multivariate analysis of factors associated with the postoperative KSS 2011 (performed with categorical variables).

Parameters	β value (95% CI)	p Value
Outlier of mismatch in standing (>5°)	−2.49 (−15.39 to −1.70)	0.0152
Outlier of coronal femoral component (>3° or −3°>)	1.70 (−1.45 to 17.83)	0.0948
Outlier of axial femoral component (>3° or −3°>)	−1.83 (−12.80 to 0.54)	0.0711
Outlier of BMI (>25 kg/m2)	1.36 (−2.24 to 11.75)	0.1791

Note: Multivariate logistic regression analysis was performed using a stepwise variable entry method. Radiological and demographic parameters (preoperative HKA angle, alignments of femoral and tibial components in the coronal, sagittal and axial planes, and rotational mismatch between components, sex and BMI; whether the parameter was an outlier or not) were used in the multivariate logistic regression model.

β is the standard regression coefficient. The bold values indicates statistically significant at p < 0.05.

Abbreviations: BMI, body mass index; CI, confidence interval; KSS, Knee Society Score.