Sensitivity is the true positive rate, specificity is the true negative rate. From the body of the paper, for their chosen test, their False Positive Rate appe

Sensitivity is the true positive rate, specificity is the true negative rate. From the body of the paper, for their chosen test, their False Positive Rate appears to be 21.2% (100% - 68.8%) and their False Negative Rate appears to be 5.1% (100% - 94.9%). For this type of test, its the false negative rate that we'll really worry about.