Table 3. Demographic Characteristics.
| Variable | Gamma nail (n=72) | U-blade Gamma nail (n=90) | P-value |
|---|---|---|---|
| Mean age (yr) | 82.4±6.37 | 82.1±6.35 | 0.718* |
| Sex | 0.731† | ||
| Female | 50 (69.4) | 65 (72.2) | |
| Male | 22 (30.6) | 25 (27.8) | |
| BMI (kg/m2) | 21.7±3.60 | 21.8±3.78 | 0.784* |
| BMD (T-score) | −3.4±0.96 | −3.2±1.03 | 0.301* |
| Mean follow-up duration (mo) | 19.6±12.8 | 13.1±8.89 | <0.001* |
| Preoperative Koval grade | 2.4±1.29 | 2.2±1.55 | 0.536* |
| AO classification | 0.936† | ||
| A1 | 37 (51.4) | 47 (52.2) | - |
| A2 | 30 (41.7) | 38 (42.2) | - |
| A3 | 5 (6.9) | 5 (5.6) | - |
| ASA class | 0.746† | ||
| Grade 1, 2 | 43 (59.7) | 56 (62.2) | |
| Grade 3, 4 | 29 (40.3) | 34 (37.8) |
Values are presented as mean±standard deviation or number (%).
BMI: body mass index, BMD: bone mineral density, ASA: American Society of Anesthesiologists.
*Student t-test; †Pearson chi-squared test.