Chemotherapeutic Agents: Leukemia following chemotherapy for ovarian cancer TYPE OF RELATIVE RISK TREATMENT No, OF PATIENTS (95%CI*) P VALUE CASES CONTROLS Surgery only 78 Radiotherapy only 15 1.6(0.51-4.8) 0.43 Chemotherapy onl y 41 52 12.0(4.4-32) <0.00l Radiotherapy and 65 98(34-28) <0.00l chemotherapy Total 10l 304 #95%CI denotes 95 percent confidence interval Kaldor JM, etal. NEJM, 1990Chemotherapeutic Agents: Leukemia following chemotherapy for ovarian cancer Kaldor JM, et al. NEJM, 1990