Table 2 Spearman correlations and Lin’s concordance correlation coefficients (CCC) between bioimpedance (BIA) and anthropomorphic body composition measurements relative to dual X-ray absorptiometry (DXA).

From: Performance of bioelectrical impedance analysis compared to dual X-ray absorptiometry (DXA) in Veterans with COPD

 

Spearman’s ρ

Lin’s CCC [95% CI]

BIA-Percent total body fat

0.80

0.67 [0.55–0.79]

BIA-Fat mass (kg)

0.94

0.95 [0.92–0.98]

BIA-Fat-free mass (kg)

0.91

0.74 [0.65–0.83]

Anthropomorphic fat-free mass (kg)

0.91

0.7 [0.59–0.8]

  1. All p-values were < .0001.
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