Table 4 Univariate analysis

Age (years)

58.4 ± 2.4 (32.0–82.0)

57.8 ± 13.4 (32.0–82.0)

63.5 ± 3.7 (59.0–68.0)

0.400

1.041 (0.948–1.142)

 Female

15 (40.5)

12 (36.4)

3 (75.0)

0.171

Reference

 Male

22 (59.5)

21 (63.6)

1 (25.0)

0.190 (0.018–2.041)

BMI (kg/m²)

24.4 ± 2.4 (18.7–28.9)

24.4 ± 2.4 (18.7–28.9)

24.5 ± 2.9 (21.9–27.1)

0.914

1.024 (0.664–1.581)

 Right

18 (48.6)

16 (48.5)

2 (50.0)

0.954

Reference

 Left

19 (51.4)

17 (51.5)

2 (50.0)

0.941 (0.118–7.499)

 Low-energy

15 (40.5)

13 (39.4)

2 (50.0)

0.685

Reference

 High-energy

22 (59.5)

20 (60.6)

2 (50.0)

0.650 (0.081–5.206)

 31A3

6 (16.2)

6 (18.2)

0 (0.0)

0.053

Undefined

 32A1, A2, A3

16 (43.2)

12 (36.4)

4 (100.0)

 32B1, B2, B3

15 (40.5)

15 (45.5)

0 (0.0)

 No

32 (86.5)

30 (90.9)

2 (50.0)

0.049

Reference

 Yes

5 (13.5)

3 (9.1)

2 (50.0)

10.0 (1.011–98.876)

 Closed

8 (21.6)

8 (7.1)

0 (0.0)

0.557

Undefined

 Open

29 (78.4)

25 (75.8)

4 (100.0)

 1

30 (81.1)

29 (87.9)

1 (25.0)

0.015

Reference

 2 or 3

7 (18.9)

4 (6.2)

3 (75.0)

21.750 (1.798–263.106)

Time to revision (months)

15.9 ± 6.6 (9.0–43.0)

15.0 ± 4.8 (9.0–30.0)

23.8 ± 13.7 (14.0–43.0)

0.052

1.149 (0.999–1.322)

 No

18 (48.6)

16 (48.5)

2 (50.0)

0.954

Reference

 Yes

19 (51.4)

17 (51.4)

2 (50.0)

0.941 (0.118–7.499)

 Reconstructive IM nail

25 (67.6)

23 (69.7)

2 (50.0)

0.582

Reference

 Long PFN

12 (32.4)

10 (30.3)

2 (50.0)

2.300 (0.283–18.705)

Varus angulation (°)

3.6 ± 1.3 (1.0–6.0)

3.4 ± 1.2 (1.0–6.0)

5.0 ± 1.4 (3.0–6.0)

0.042

3.221 (1.042–9.959)

Sagittal anterior angulation (°)

3.2 ± 1.6 (1.0–8.0)

2.9 ± 1.2 (1.0–6.0)

5.5 ± 2.6 (2.0–8.0)

0.016

2.653 (1.196–5.886)

Fracture gap (mm)

1.8 ± 0.6 (1.0–3.0)

1.6 ± 0.5 (1.0–2.0)

3.0 ± 0.0 (3.0–3.0)

1.000

Undefined