## Table 12 |
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Case example utilizing method 2, cut-point 1 |
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Prob. .41/1-.41 = -0.16 |
Patients value |
Parameter estimate |
Pt. value *Parameter estimate |
Intercept |

HGB | 15.2 | -0.378 | -5.74 | -5.10 |

RBC | 4.50 | -0.764 | -3.44 | |

Black | (Yes=1) 0 | 0.361 | 0.00 | |

Age | 60 | 0.018 | 1.08 | |

PSA | 4.3 | 0.033 | 0.129 | |

Creatinine | 1.65 | -0.601 | -0.99 | |

MCV | 90.00 | 0.050 | 4.5 | |

sum of B*value | 2.42 | |||

Plus intercept=Sum | -2.68 |

The probability of this cut-point is .41, therefore the Log OR p/1 – p = .41/1-.41, thus the cut-point is −0.16. (If the number yielded from the equation is above this value, the patient should be referred for prostate biopsy). The patient is a 60 year old, Caucasian male with a recent PSA test value of 4.3 ng/dL. In addition, he had additional lab work to include a HGB, RBC count, MCV, Creatinine, and a negative test for Hematuria. Utilizing method 2, cut-point 1, the Patient’s PBCDR total sum is -2.68, which is less than -0.16. Therefore, the recommendation is no biopsy for the patient.

Hill * et al.*

Hill * et al.* *BMC Urology* 2013 **13**:6 doi:10.1186/1471-2490-13-6