In:
Head & Neck, Wiley, Vol. 36, No. 4 ( 2014-04), p. 585-591
Abstract:
The purpose of this study was to validate bioelectrical impedance analysis (BIA) using the Geneva equation for fat‐free mass (FFM) in patients with head and neck cancer. Methods In 24 patients with head and neck cancer, agreement between BIA (FFM BIA ) and dual energy x‐ray absorptiometry (FFM DXA ) 1 week before (T 0 ), 1 month (T 1 ), and 4 months (T 2 ) after cancer treatment was analyzed. Results FFM BIA did not differ from FFM DXA (mean difference 0.71 ± 1.9, 0.30 ± 1.9, and 0.02 ± 2.1 kg) at any time point. Only at T 0 , mean FFM correlated to the difference between FFM DXA and FFM BIA ( r = 0.48; p = .017). Limits of agreement were 3.8, 3.7, and 4.1 kg, respectively. Concordance Correlation Coefficients were 0.98 at all time points. Conclusion BIA may be used to assess FFM with reasonable validity based on mean‐level comparisons, but differences between BIA and DXA may vary by about 4 kg in an individual patient. These results require confirmation in a larger sample of patients with head and neck cancer. © 2013 Wiley Periodicals, Inc. Head Neck 36 : 585–591, 2014
Type of Medium:
Online Resource
ISSN:
1043-3074
,
1097-0347
Language:
English
Publisher:
Wiley
Publication Date:
2014
detail.hit.zdb_id:
2001440-5
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