Figure 1.

The decision tree displays the results of a probabilistic analysis in a way that helps the clinician choose between the different diagnostic tests. The variables entered in the analysis were bone histology as the dependent variable and clinical signs of infection, ulcer culture, X-ray, PTB test, neuropathic/neuroischemic ulcer, and ulcer duration as independent variables. The tests or conditions providing a significant result in relation to another test or condition appear in bold.