|
Risk factors
|
Adjusted Odds Ratio(95%CI)
|
P Value
|
|---|
|
Age (years)
|
1.014 (0.987–1.043)
|
0.304
|
|
Gender
|
|
Male
|
1.0(reference)
| |
|
Female
|
1.634 (1.057–2.527)
|
0.027*
|
|
BMI (kg/m2)
| | |
|
< 30
|
1.0(reference)
| |
|
> 30
|
2.022 (0.880–4.648)
|
0.097
|
|
Injury mechanism
|
|
Low energy trauma
|
1.0(reference)
| |
|
High energy trauma
|
2.451 (1.348–4.458)
|
0.003*
|
|
Time from injury to admission (days)
|
1.377 (1.249–1.519)
|
< 0.001*
|
|
Hemoglobin(g/L)
|
0.975 (0.965–0.986)
|
< 0.001*
|
|
Comorbidities
|
|
Diabetes
|
1.866 (1.248–2.791)
|
0.002*
|
|
COPD
|
2.229 (1.289–3.855)
|
0.004*
|
|
Atrial fibrillation
|
1.735 (0.935–3.217)
|
0.080
|
|
Cerebrovascular accident
|
1.304 (0.819–2.076)
|
0.263
|
|
Dementia
|
1.838 (0.825–4.096)
|
0.136
|
|
Varicose veins
|
1.802 (0.882–3.682)
|
0.106
|
|
Age-adjusted CCI
|
0.873 (0.717–1.062)
|
0.174
|
|
ASA classification
| |
0.092
|
|
1
|
1.0(reference)
| |
|
2
|
3.130 (0.691–14.172)
|
0.139
|
|
3
|
4.835 (1.031–22.680)
|
0.046*
|
|
4
|
3.495 (0.333–36.682)
|
0.297
|
|
AO classification
| | |
|
A1
|
1.0(reference)
| |
|
A2
|
1.303 (0.796–2.135)
|
0.293
|
|
A3
|
3.287 (1.700–6.355)
|
< 0.001*
|
- The multivariable regression analysis used backward selection with use of the likelihood ratio test to assess significance
- Abbreviations: DVT Deep vein thrombosis, BMI Body mass index, COPD Chronic obstructive pulmonary disease, CCI Charlson Comorbidity Index, ASA American Society of Anaesthesiologists, AO Arbeitsgemeinschaft fur Osteosynthesefragen, CI Confidence interval
- *The difference was significant
