Table 1.
Comparison of general data between PFNA group and DHS group.
| Factors | PFNA group (n = 59) | DHS group (n = 53) | t/χ2 value | P |
|---|---|---|---|---|
| Age (years old) | 67.43 ± 5.32 | 68.26 ± 6.24 | 0.760 | 0.449 |
| Gender | 0.012 | 0.913 | ||
| Male | 25 (42.37) | 23 (43.4) | ||
| Female | 34 (57.63) | 30 (56.6) | ||
| Cause of injury | 1.983 | 0.159 | ||
| Fall | 42 (71.19) | 31 (58.49) | ||
| Collision | 17 (28.81) | 22 (41.51) | ||
| Time between operation and injury (day) | 5.23 ± 1.41 | 4.87 ± 1.39 | 1.358 | 0.177 |
| Fracture type | 0.304 | 0.581 | ||
| Open | 14 (23.73) | 15 (28.3) | ||
| Closed | 45 (76.27) | 38 (71.7) | ||
| AO classification of fracture | 0.373 | 0.830 | ||
| A1 | 14 (23.73) | 19 (35.85) | ||
| A2 | 23 (38.98) | 22 (41.51) | ||
| A3 | 12 (20.34) | 12 (22.64) | ||
| Tronzo-Evans classification | 1.439 | 0.837 | ||
| I | 5 (8.47) | 6 (11.32) | ||
| II | 16 (27.12) | 13 (24.53) | ||
| III | 13 (22.03) | 18 (33.96) | ||
| IV | 10 (16.95) | 9 (16.98) | ||
| V | 5 (8.47) | 7 (13.21) | ||
| Underlying comorbidities | 0.168 | 0.682 | ||
| Hypertension | 10 (16.95) | 13 (24.53) | ||
| Coronary heart disease | 7 (11.86) | 12 (22.64) | ||
| Diabetes mellitus | 6 (10.17) | 7 (13.21) | ||
| Chronic lung disease | 3 (5.08) | 3 (5.66) | ||
| Others | 4 (6.78) | 5 (9.43) |
Abbreviation: PFNA: proximal femoral nail antirotation; DHS: dynamic hip screw group.