Brief Reports
Copyright ©2005 Baishideng Publishing Group Inc.
World J Gastroenterol. Feb 14, 2005; 11(6): 899-902
Published online Feb 14, 2005. doi: 10.3748/wjg.v11.i6.899
Table 5 Four-fold table analysis of diagnostic experiment.
Real prognosisPredicted prognosis
Number of deathsNumber of survivors
Number of deathsValue of true positiveaValue of false negativeb
Number of survivorsValue of false positivecValue of true negatived