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

From: Predictors of Radiotherapy Induced Bone Injury (RIBI) after stereotactic lung radiotherapy

Univariate analysis
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
D0.5 1.0009 1.0007 - 1.0011 <0.0001