THE PREDICTIVE POWER OF RIB-FRACTURES IN RELATION TO MORBIDITY AND MORTALITY– A RETROSPECTIVE CASE-CONTROL STUDY
Using an unidimensional analysis proofed an increasing mortality and morbidity in relation to a rising number of broken ribs. Additionally the AIS-chest, the ISS and the length of stay were also significantly correlating. However, using a multidimensional regression indicated Odds-Ratios ranking from 1.05 (morbidity) to 1.10 (mortality). Our logistic regression calculated a cut-off value of four ribs for mortality (sensitivity 66%, specificity 60%). Additionally, a cut-off value of three ribs for morbidity was generated (Sensitivity 73%, Specificity 37%).
Using an univariant analysis, the number of fractured ribs is associated with a higher morbidity or mortality. However, in a multivariate analysis the number of rib fractures was not found to be an independent predictor of clinical outcome. The focus of treatment should not be focused on the number of broken ribs.