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Prostate Cancer Nomograms : Disclaimer

The prediction tools, also known as prognostic nomograms, located on the MSKCC Web site are for general health information only. The prediction tools are not to be used as a substitute for medical advice, diagnosis, or treatment of any health condition or problem.

Users of the prediction tools should not rely on information provided by the prediction tools for their own health problems. Questions should be addressed to your own physician or other healthcare provider.

MSKCC makes no warranties, nor express or implied representations whatsoever, regarding the accuracy, completeness, timeliness, comparative or controversial nature, or usefulness of any information contained or referenced in the prediction tools. MSKCC does not assume any risk whatsoever for your use of the prediction tools or the information contained herein. Health related information changes frequently and therefore information contained in the prediction tools may be outdated, incomplete or incorrect.

Use of the prediction tools does not create an express or implied physician-patient relationship. MSKCC does not endorse or claim validity for the prediction tools found on the MSKCC Web site. The activities and products of MSKCC and its developers and agents (collectively MSKCC) are not endorsed by our past, present, or future employers. MSKCC does not record specific prediction tool user information and does not contact users of the prediction tools.

You are hereby advised to consult with a physician or other professional healthcare provider prior to making any decisions, or undertaking any actions or not undertaking any actions related to any healthcare problem or issue you might have at any time, now or in the future. In using the prediction tools, you agree that neither MSKCC nor any other party is or will be liable or otherwise responsible for any decision made or any action taken or any action not taken due to your use of any information presented in the prediction tools.

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Prostate Cancer Nomograms: PSA Doubling Time

This tool can be used to calculate the rate of rise of PSA, expressed as the velocity in nanograms/ml/year, or the PSA doubling time, in months or years. The most important values to enter are the date/PSA value for each PSA measured over the last 12 months. Alternately, if at least three PSA values are available, enter all PSA values after receiving radical prostatectomy, beginning with the lowest PSA value. (Note: Disregard any PSA values obtained after hormonal therapy was begun.) To learn more, visit our Frequently Asked Questions.

CalculateClearEnter Your Information

(Month / Date / Year)
(> 0.1)

Your Results

Slope Log (PSA)
Doubling Time
Slope Log (PSA)
Doubling Time
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PSA Doubling Time

PSA Doubling Time can be an indicator of biochemical and clinical progression. This tool predicts the changes in PSA levels over time.

Supporting Publication

Natural history of progression after PSA elevation following radical prostatectomy. JAMA. 1999 May 5;281(17):1591-7.