Introduction
Methods
Ethics statement
Study population
Statistical analysis
Results
The association of patient characteristics with the site of femoral fractures
Proximal A fracture | Proximal B fracture | Proximal C fracture | |||||||
---|---|---|---|---|---|---|---|---|---|
No | Yes |
p
| No | Yes |
p
| No | Yes |
p
| |
n = 2500 | n = 1359 | n = 2372 | n = 1487 | n = 3800 | n = 59 | ||||
Age (years) | 69 [52, 79] | 78 [67, 84] | < 0.001 | 70 [49, 81] | 76 [66, 82] | < 0.001 | 73 [58, 81] | 35 [26, 52] | < 0.001 |
Male, n (%) | 1035 (41.4) | 585 (43.0) | 0.339 | 1095 (46.2) | 525 (35.3) | < 0.001 | 1578 (41.5) | 42 (71.2) | < 0.001 |
Fall, n (%) | 1482 (59.3) | 1060 (78.0) | < 0.001 | 1353 (57.0) | 299 (22.0) | < 0.001 | 2532 (66.6) | 10 (16.9) | < 0.001 |
BMI, median [IQR] | 23.2 [20.8, 26.2] | 22.9 [20.4, 25.6] | 0.001 | 23.6 [21.0, 26.6] | 22.5 [20.2, 25.0] | < 0.001 | 23.1 [20.7, 26.0] | 25.3 [22.7, 28.7] | < 0.001 |
Weight, n (%) | 0.001 | < 0.001 | 0.029 | ||||||
Obese | 327 (13.1) | 148 (10.9) | 332 (14.0) | 143 (9.6) | 464 (12.2) | 11 (18.6) | |||
Overweight | 611 (24.4) | 309 (22.7) | 624 (26.3) | 296 (19.9) | 900 (23.7) | 20 (33.9) | |||
Normal weight | 1367 (54.7) | 746 (54.9) | 1223 (51.6) | 890 (59.9) | 2086 (54.9) | 27 (45.8) | |||
Underweight | 195 (7.8) | 156 (11.5) | 193 (8.1) | 158 (10.6) | 350 (9.2) | 1 (1.7) |
Shaft fracture | Distal fracture | |||||
---|---|---|---|---|---|---|
No | Yes |
p
| No | Yes |
p
| |
n = 3219 | n = 640 | n = 3393 | n = 466 | |||
Age (years) | 75 [63, 83] | 44 [26, 65] | < 0.001 | 74 [60, 82] | 60 [41, 73] | < 0.001 |
Male, n (%) | 1256 (39.0) | 364 (56.9) | < 0.001 | 1428 (42.1) | 192 (41.2) | 0.754 |
Fall, n (%) | 2377 (73.8) | 165 (25.8) | < 0.001 | 2366 (69.7) | 176 (37.8) | < 0.001 |
BMI, medium [IQR] | 22.9 [20.5, 25.8] | 24.3 [21.6, 27.1] | < 0.001 | 22.9 [20.4, 25.7] | 25.0 [22.2, 28.2] | < 0.001 |
Weight, n (%) | < 0.001 | < 0.001 | ||||
Obese | 365 (11.3) | 110 (17.2) | 383 (11.3) | 92 (19.7) | ||
Overweight | 736 (22.9) | 184 (28.7) | 766 (22.6) | 154 (33.0) | ||
Normal weight | 1799 (55.9) | 314 (49.1) | 1904 (56.1) | 209 (44.8) | ||
Underweight | 319 (9.9) | 32 (5.0) | 340 (10.0) | 11 (2.4) |
Independent variables of patient characteristics associated with sites of femoral fractures
Fracture site | Proximal A | Proximal B | Proximal C | ||||||
Variables | coefficient | OR (95%CI) |
p
| coefficient | OR (95%CI) |
p
| coefficient | OR (95%CI) |
p
|
Age | 0.03 | 1.03 (1.03–1.04) | < 0.001 | 0.02 | 1.02 (1.01–1.02) | < 0.001 | −0.04 | 0.96 (0.94–0.98) | < 0.001 |
Male | 0.53 | 1.70 (1.46–1.98) | < 0.001 | − 0.11 | 0.90 (0.78–1.04) | 0.15 | 0.39 | 1.48 (0.83–2.77) | 0.20 |
Faller | 0.39 | 1.47 (1.22–1.77) | < 0.001 | 0.66 | 1.93 (1.61–2.31) | < 0.001 | − 0.99 | 0.37 (0.16–0.83) | 0.02 |
obese | −0.04 | 0.96 (0.77–1.19) | 0.73 | −0.33 | 0.72 (0.58–0.89) | < 0.001 | 0.24 | 1.27 (0.61–2.42) | 0.50 |
Intercept | −3.33 | 0.04 (0.02–0.05) | < 0.001 | −2.04 | 0.13 (0.09–0.18) | < 0.001 | −1.78 | 0.17 (0.07–0.40) | < 0.001 |
Fracture site | Shaft | Distal | |||||||
Variables | coefficient | OR (95%CI) |
p
| coefficient | OR (95%CI) |
p
| |||
Age | −0.05 | 0.95 (0.95–0.96) | < 0.001 | −0.02 | 0.98 (0.98–0.99) | < 0.001 | |||
Male | −0.20 | 0.82 (0.66–1.01) | 0.07 | − 0.60 | 0.55 (0.44–0.69) | < 0.001 | |||
Faller | −1.00 | 0.37 (0.29–0.47) | < 0.001 | − 1.06 | 0.35 (0.27–0.45) | < 0.001 | |||
obese | 0.28 | 1.32 (1.00–1.74) | 0.05 | 0.53 | 1.70 (1.30–2.20) | < 0.001 | |||
Intercept | 1.89 | 6.65 (4.62–9.62) | < 0.001 | −0.18 | 0.84 (0.58–1.21) | 0.35 |