<prompt> Which type of trophoblstic disease has worst prognosis?Post partumAfter spontaneous abortionAfter ectopic pregnancyHydatid mole  <response>: ANSWER: A Post partumREF: COGDT 10th edp. 892WHO Scoring System based on prognostic factors ScorePrognostic Factors0124Age years3939 Antecedent PregnancyHydatidiform MoleAbortionTerm--interval44-67-1212hCG IU1103103-104104-105105ABO groups female x male--O x AAx OBAB--Largest tumour including uterine tumours--3-5 Cm5 Cm--Site of metastases--Spleen, KidneyGIT, LiverBrainNumber of metastases identified--1-44-88Prior Chemo-therapy---Single DrugTwo or more 