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. Author manuscript; available in PMC: 2009 Feb 12.
Published in final edited form as: Clin Chem. 2006 Sep 21;52(11):2060–2064. doi: 10.1373/clinchem.2006.070805

Figure 2. Logarithmic ROC curves for 5 measures used to detect pheochromocytomas.

Figure 2

Receiver-operator (ROC) curves for normalized urinary normetanephrine (nNMT), metanephrine (nMAD) and 3-methoxytyramine (n3MT), as well as the derivative measures nNMT.nMAD and nNMT.nMAD.n3MT, are shown. The gold standard used for diagnosis was histologically-confirmed pheochromocytoma before the 4th May 2005.