Figure 1.

Risk of recurrent falls estimated by regression model. A) Fall risk shown by area under the receiver-operator-characteristic (ROC) curve, as estimated from the logistic regression model. B) Probability, sensitivity, and specificity of each additional fall risk factor. The risk factors identified through regression analyses were: difficulty with tandem stand, antidepressant use, exhaustion, diabetes, female gender, shrinking, opiate use, current/prior didanosine, and sedative use.