Table 4 Risk Factors of refractures regarding to gender. (Univariate and multivariate logistic regression models, those variables with p-value < 0.10 were not presented)

Female

Menopause vs. non-menopause

7.054(1.443–34.477)

0.016

11.546(1.068-124.867)

0.044

Interval stratification < = 12 months vs. > 12 months

4.078(0.899–18.491)

0.068

105.887(4.641-2415.698)

0.003

Robinson classification

0.002

0.028

2 A/2B1

Ref.

Ref.

2B2

16.821(3.945–71.720)

15.259(1.334-174.509)

Fair/poor reduction n(%)

15.429(3.644–65.320)

< 0.001

23.070(2.051-259.516)

0.011

Delayed union or malunion vs. common union

7.184(1.686–30.615)

0.008

1.300 (0.127–13.286)

0.825

Male

Tobacco use (TU) vs.

No TU

5.238(1.274–21.539)

0.022

3.056(0.108–86.763)

0.513

Alcohol use (AU) vs.

No AU

6.486(1.192–35.300)

0.031

2.443(0.050–119.300)

0.653

Robinson classification

< 0.001

< 0.001

2 A/2B1

Ref.

Ref.

2B2

14.550(3.771–56.139)

16.252(3.397–77.740)

Fair/poor reduction vs.

Good reduction

28.909(7.284–114.730)

< 0.001

20.537(4.310–97.850)

< 0.001

Delayed union or malunion vs. common union

8.571(2.470-29.747)

0.001

0.522(0.066–4.105)

0.537