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Late mortality among 5-year survivors of childhood cancer: a summary from the Childhood Cancer Survivor Study Armstrong GT; Liu Q; Yasui Y; Neglia JP; Leisenring W; Robison LL; Mertens ACJ Clin Oncol 2009[May]; 27 (14): 2328-38The Childhood Cancer Survivor Study (CCSS) has assembled the largest cohort to date for assessment of late mortality. Vital status and cause of death of all patients eligible for participation in CCSS was determined using the National Death Index and death certificates to characterize the mortality experience of 20,483 survivors, representing 337,334 person-years of observation. A total of 2,821 deaths have occurred as of December 31, 2002. The overall cumulative mortality is 18.1% (95% CI, 17.3 to 18.9) at 30 years from diagnosis. With time, while all-cause mortality rates have been stable, the pattern of late death is changing. Mortality attributable to recurrence or progression of primary disease is decreasing, with increases in rates of mortality attributable to subsequent neoplasms (standardized mortality ratios [SMR], 15.2; 95% CI, 13.9 to 16.6), cardiac death (SMR, 7.0; 95% CI, 5.9 to 8.2), and pulmonary death (SMR, 8.8; 95% CI, 6.8 to 11.2) largely due to treatment-related causes. In addition, the CCSS has identified specific treatment-related risk factors for late mortality. Radiotherapy (relative risk [RR], 2.9; 95% CI, 2.1 to 4.2), alkylating agents (RR, 2.2; 95% CI, 1.6 to 3.0), and epipodophyllotoxins (RR, 2.3; 95% CI, 1.2 to 4.5) increase the risk of death due to subsequent malignancy. Cardiac radiation exposure (RR, 3.3; 95% CI, 2.0 to 5.5) and high dose of anthracycline exposure (RR, 3.1; 95% CI, 1.6 to 5.8) are associated with late cardiac death. By continued longitudinal follow-up of the cohort and expansion of the cohort to include patients diagnosed between 1987 and 1999, the CCSS will remain a primary resource for assessment of late mortality of survivors of childhood cancers.|*Cause of Death[MESH]|Adolescent[MESH]|Adult[MESH]|Age Factors[MESH]|Cardiovascular Diseases/epidemiology[MESH]|Child[MESH]|Cohort Studies[MESH]|Comorbidity[MESH]|Cost of Illness[MESH]|Female[MESH]|Follow-Up Studies[MESH]|Humans[MESH]|Incidence[MESH]|Male[MESH]|Multicenter Studies as Topic[MESH]|National Cancer Institute (U.S.)[MESH]|Neoplasm Recurrence, Local/*mortality[MESH]|Neoplasms/classification/*mortality/*therapy[MESH]|Pregnancy[MESH]|Pregnancy Complications, Neoplastic/mortality/therapy[MESH]|Quality of Life[MESH]|Retrospective Studies[MESH]|Risk Assessment[MESH]|Sex Distribution[MESH]|Sex Factors[MESH]|Survival Rate[MESH]|Survivors/*statistics & numerical data[MESH]|Treatment Outcome[MESH]|United States/epidemiology[MESH]|Young Adult[MESH] |
