Table 5 Univariate and multivariate analysis on predictors for rib fractures (repeated measures have been taken into consideration)

Predictor

Odds Ratio

95% CI

p-value

Age (years)

1.083

1.002 - 1.172

0.045

Gender-F

2.256

0.656 - 7.756

0.2

Diabetes Mellitus-yes

0.51

0.091 - 2.876

0.45

COPD-yes

0.97

0.275 – 3.386

0.96

Tumor size

1.037

0.982 -1.095

0.19

Smallest 3D distance between the tumor and closest rib

0.408

0.152 – 10.970

0.07

Multivariate analysis

Age (year)

1.121

1.04 – 1.21

0.003

Gender-F

4.43

1.68 – 11.68

0.003

D_0.5

1.0009

1.0007 - 1.0011

<0.0001