Table 1.
Anthropometry and risk factors after matching (1:1) of total hip arthroplasties for the treatment of primary osteoarthritis and femoral neck fracture
| Osteoarthritis (OA) | Intracapsular femoral neck fracture (FNF) | p-Value | |
|---|---|---|---|
| Number (n) | 21,718 | 21,718 | |
| Age (years) | 74.8 ± 9.52 | 74.7 ± 9.81 | p = 0.331 |
| Sex (female) n (%) | 15,206 (70.0) | 15,186 (69.9) | p = 0.842 |
| Elixhauser comorbidity score | 5.08 ± 6.56 | 5.24 ± 6.79 | p = 0.014 |
| Body mass index (BMI) in kg/m2 | 25.5 ± 4.25 | 25.1 ± 4.35 | p < 0.0001 |
| Cementless fixation (%) | 10,209 (47.0) | 10,182 (46.9) | p = 0.803 |
BMI and Elixhauser score remain statistically significant after matching; however, balance is satisfactorily improved (standardized mean difference is below 0.05 and variance below 1.10 for both variables)