Table 3 Comparison of outliers in primary variables in groups stratified by age, sex, side, BMI and type and severity of the deformity
Radiographic variable | |||
|---|---|---|---|
Age | ≤65 years, N = 144 | > 65 years, N = 101 | p value |
HKA axis, Outlier (%) | 06, (4.16%) | 04, (3.96%) | 1.00 |
mLDFA, Outlier (%) | 05, (3.47%) | 02, (1.98%) | 0.70 |
MPTA, Outlier (%) | 01, (0.69%) | 01, (0.99%) | 1.00 |
Sex | Male, N = 52 | Female, N = 193 | |
HKA axis, Outlier (%) | 01, (1.92%) | 09, (4.66%) | 0.69 |
mLDFA, Outlier (%) | 00, (0.00%) | 07, (3.62%) | 0.35 |
MPTA, Outlier (%) | 01, (1.92%) | 01, (0.51%) | 0.38 |
Side | Left, N = 116 | Right, N = 129 | |
HKA axis, Outlier (%) | 05, (4.31%) | 05, (3.87%) | 1.00 |
mLDFA, Outlier (%) | 03, (2.58%) | 01, (0.007%) | 0.34 |
MPTA, Outlier (%) | 01, (0.86%) | 04, (3.10%) | 0.37 |
BMI | ≤30 kg/m2, N = 124 | > 30 kg/m2, N = 121 | |
HKA axis, Outlier (%) | 04, (3.22%) | 06, (4.95%) | 0.53 |
mLDFA, Outlier (%) | 03, (2.41%) | 04, (3.30%) | 0.71 |
MPTA, Outlier (%) | 01, (0.80%) | 01, (0.83%) | 1.00 |
Type severity of the deformity | Varus, N = 227 | Valgus, N = 18 | |
HKA axis, Outlier (%) | 10, (4.40%) | 00, (0.00%) | 0.61 |
mLDFA, Outlier (%) | 07, (3.08%) | 00, (0.00%) | 1.00 |
MPTA, Outlier (%) | 02, (0.88%) | 00, (0.00%) | 1.00 |
Severity of the varus deformity | ≤150, N = 193 | > 150, N = 34 | |
HKA axis, Outlier (%) | 07, (3.62%) | 03, (8.82%) | 0.17 |
mLDFA, Outlier (%) | 06, (3.10%) | 01, (2.94%) | 1.00 |
MPTA, Outlier (%) | 01, (0.51%) | 01, (2.94%) | 0.27 |