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Development and Validation of a Clinical Frailty Index for the World Trade Center General Responder Cohort
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2021
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Source: J Aging Health. 33(7-8):531-544
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Details:
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Alternative Title:J Aging Health
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Description:Objectives:
To develop and validate a clinical frailty index to characterize aging among responders to the 9/11 World Trade Center (WTC) attacks.
Methods:
This study was conducted on health monitoring data on a sample of 6197 responders. A clinical frailty index, WTC FI-Clinical, was developed according to the cumulative deficit model of frailty. The validity of the resulting index was assessed using all-cause mortality as an endpoint. Its association with various cohort characteristics was evaluated.
Results:
The sample’s median age was 51 years. Thirty items were selected for inclusion in the index. It showed a strong correlation with age, as well as significant adjusted associations with mortality, 9/11 exposure severity, sex, race, pre-9/11 occupation, education, and smoking status.
Discussion:
The WTC FI-Clinical highlights effects of certain risk factors on aging within the 9/11 responder cohort. It will serve as a useful instrument for monitoring and tracking frailty within this cohort.
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Pubmed ID:33706594
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Pubmed Central ID:PMC9561755
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