Table 1.
Characteristics of all patients according to surgeon’s experience
| Factor | < 3 years | > 3 years | p-value |
|---|---|---|---|
| Total number | 5,821 | 25,124 | |
| Mean age (SD) at fracture | 83 (8.6) | 83 (8.5) | 0.08 a |
| Women, n (%) | 4,113 (71) | 17,625 (70) | 0.4 b |
| ASA score, n (%): | < 0.001 b | ||
| ASA 1–2 | 2,239 (39) | 8,605 (34) | |
| ASA 3–5 | 3,528 (62) | 16,519 (66) | |
| Operation time according to fracture type, minutes (SD): | |||
| All fractures | 57 (28) | 64 (32) | < 0.001 a |
| Undisplaced FNFs | 32 (18) | 32 (23) | 0.3 a |
| Displaced FNFs | 69 (29) | 72 (26) | < 0.001 a |
| Trochanteric 2-fragmented | 58 (21) | 49 (22) | < 0.001 a |
| Trochanteric multi-fragmented | 63 (25) | 60 (30) | < 0.001 a |
| Inter- /subtrochanteric | 79 (32) | 91 (41) | < 0.001 a |
| Operation time according to type of operation, minutes (SD): | |||
| Screw osteosynthesis | 30 (13) | 25 (13) | < 0.001 a |
| Hemiarthroplasty | 78 (25) | 76 (25) | 0.06 a |
| Sliding hip screw | 62 (23) | 60 (30) | 0.001 a |
| Long intramedullary nail | 86 (36) | 93 (41) | 0.01 a |
ASA: American Society of Anesthesiologists.
FNF: femoral neck fracture.
aIndependent samples t-test.
bPearson chi-square test.