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N Engl J Med. 2006 Oct 12;355(15):1572-82.

Chronic health conditions in adult survivors of childhood cancer.

Author information

  • 1Department of Pediatrics, Memorial Sloan-Kettering Cancer Center, New York 10021, USA. oeffingk@mskcc.org

Abstract

BACKGROUND:

Only a few small studies have assessed the long-term morbidity that follows the treatment of childhood cancer. We determined the incidence and severity of chronic health conditions in adult survivors.

METHODS:

The Childhood Cancer Survivor Study is a retrospective cohort study that tracks the health status of adults who received a diagnosis of childhood cancer between 1970 and 1986 and compares the results with those of siblings. We calculated the frequencies of chronic conditions in 10,397 survivors and 3034 siblings. A severity score (grades 1 through 4, ranging from mild to life-threatening or disabling) was assigned to each condition. Cox proportional-hazards models were used to estimate hazard ratios, reported as relative risks and 95% confidence intervals (CIs), for a chronic condition.

RESULTS:

Survivors and siblings had mean ages of 26.6 years (range, 18.0 to 48.0) and 29.2 years (range, 18.0 to 56.0), respectively, at the time of the study. Among 10,397 survivors, 62.3% had at least one chronic condition; 27.5% had a severe or life-threatening condition (grade 3 or 4). The adjusted relative risk of a chronic condition in a survivor, as compared with siblings, was 3.3 (95% CI, 3.0 to 3.5); for a severe or life-threatening condition, the risk was 8.2 (95% CI, 6.9 to 9.7). Among survivors, the cumulative incidence of a chronic health condition reached 73.4% (95% CI, 69.0 to 77.9) 30 years after the cancer diagnosis, with a cumulative incidence of 42.4% (95% CI, 33.7 to 51.2) for severe, disabling, or life-threatening conditions or death due to a chronic condition.

CONCLUSIONS:

Survivors of childhood cancer have a high rate of illness owing to chronic health conditions.

Copyright 2006 Massachusetts Medical Society.

Comment in

  • Chronic conditions in adult survivors of childhood cancer. [Curr Oncol Rep. 2007]
  • The two-edged sword of curing childhood cancer. [N Engl J Med. 2006]
  • Survivors of childhood cancer. [N Engl J Med. 2007]
  • Survivors of childhood cancer. [N Engl J Med. 2007]
  • Survivors of childhood cancer. [N Engl J Med. 2007]
PMID:
17035650
[PubMed - indexed for MEDLINE]
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