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Physiologic frailty as a sign of accelerated aging among adult survivors of childhood cancer: a report from the St Jude Lifetime cohort study.


ABSTRACT: Frailty, a phenotype reported among 9.9% of individuals 65 years old and older (9.6% of women; 5.2% of men), has not been assessed among adult childhood cancer survivors (CCS). We estimated the prevalence of frailty and examined associations with morbidity and mortality.Participants included 1,922 CCS at least 10 years from original cancer diagnosis (men, 50.3%; mean age, 33.6 ± 8.1 years) and a comparison population of 341 participants without cancer histories. Prefrailty and frailty were defined as two and ? three of the following conditions: low muscle mass, self-reported exhaustion, low energy expenditure, slow walking speed, and weakness. Morbidity was defined as grade 3 to 4 chronic conditions (Common Terminology Criteria for Adverse Events version 4.0). Fisher's exact tests were used to compare, by frailty status, percentages of those with morbidity. In a subset of 162 CCS who returned for a second visit, Poisson regression was used to evaluate associations between frailty and new onset morbidity. Cox proportional hazards regression was used to evaluate associations between frailty and death.The prevalence of prefrailty and frailty were 31.5% and 13.1% among women and 12.9% and 2.7% among men, respectively, with prevalence increasing with age. Frail CCS were more likely than nonfrail survivors to have a chronic condition (82.1% v 73.8%). In models adjusted for existing chronic conditions, baseline frailty was associated with risk of death (hazard ratio, 2.6; 95% CI, 1.2 to 6.2) and chronic condition onset (relative risk, 2.2; 95% CI, 1.2 to 4.2).The prevalence of frailty among young adult CCS is similar to that among adults 65 years old and older, suggesting accelerated aging.

SUBMITTER: Ness KK 

PROVIDER: S-EPMC3871511 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature

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Physiologic frailty as a sign of accelerated aging among adult survivors of childhood cancer: a report from the St Jude Lifetime cohort study.

Ness Kirsten K KK   Krull Kevin R KR   Jones Kendra E KE   Mulrooney Daniel A DA   Armstrong Gregory T GT   Green Daniel M DM   Chemaitilly Wassim W   Smith Webb A WA   Wilson Carmen L CL   Sklar Charles A CA   Shelton Kyla K   Srivastava Deo Kumar DK   Ali Sabeen S   Robison Leslie L LL   Hudson Melissa M MM  

Journal of clinical oncology : official journal of the American Society of Clinical Oncology 20131118 36


<h4>Purpose</h4>Frailty, a phenotype reported among 9.9% of individuals 65 years old and older (9.6% of women; 5.2% of men), has not been assessed among adult childhood cancer survivors (CCS). We estimated the prevalence of frailty and examined associations with morbidity and mortality.<h4>Methods</h4>Participants included 1,922 CCS at least 10 years from original cancer diagnosis (men, 50.3%; mean age, 33.6 ± 8.1 years) and a comparison population of 341 participants without cancer histories. P  ...[more]

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