|Case example utilizing method 2, cut-point 1|
|Prob. .41/1-.41 = -0.16||Patients value||Parameter estimate||Pt. value *Parameter estimate||Intercept|
|sum of B*value||2.42|
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