Table 1 Summary of data before and after propensity score matching
Before propensity score matching | P-value | Propensity Score-Matched (1:1) | P-value | |||
|---|---|---|---|---|---|---|
Older group (> 65 yrs, N = 62) | Younger group (< 55 yrs, N = 143) | Older group (> 65 yrs, N = 62) | Younger group (< 55 yrs, N = 62) | |||
Sex(Male/Female) | 16/46 | 55/88 | 0.12 | 16/46 | 16/46 | 1 |
BMI (Mean ± SD) | 25.6 ± 2.6 | 26.4 ± 3.6 | 0.07 | 25.6 ± 2.6 | 25.5 ± 3.2 | 0.82 |
Preop HKA (degree) | 7.2 ± 3.3 | 5.6 ± 3.5 | < 0.001 | 7.2 ± 3.3 | 6.6 ± 3.3 | 0.67 |