Table 4 Accuracy/inaccuracy and Chi-square test of HKA in test set
Native Joint | Joint with Prothesis | ||||||||
|---|---|---|---|---|---|---|---|---|---|
accuracy | inaccuracy | χ² | p value | accuracy | inaccuracy | χ² | p value | ||
Alignment status | |||||||||
Varus (≤-2°) | 179 | 14 | 0.975 | 0.614 | 72 | 6 | 3.511 | 0.173 | |
Neutural (-2°~+2°) | 38 | 3 | 47 | 5 | |||||
Valgus (≥ 2°) | 20 | 3 | 9 | 3 | |||||
Sex | |||||||||
Male | 50 | 8 | 3.771 | 0.052 | 30 | 5 | 1.024 | 0.312 | |
Female | 187 | 12 | 98 | 9 | |||||
BMI | |||||||||
BMI ≤ 25 | 68 | 5 | 0.552 | 0.458 | 32 | 5 | 0.752 | 0.386 | |
BMI>25 | 166 | 18 | 96 | 9 | |||||
Age | |||||||||
age ≤ 60 | 52 | 5 | 0.537 | 0.464 | 28 | 3 | 0.001 | 0.969 | |
age>60 | 187 | 12 | 100 | 11 | |||||