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Table 3 DXA Cross-sectional performance criteria* at the period of stability and prior to competition

From: Accuracy of DXA in estimating body composition changes in elite athletes using a four compartment model as the reference method

  Slope Intercept r s.e.e. Agreement
      Bias Limits Trend
%FMPeriod of Stability 1.03b -3.24a 0.78 2.63 2.9 7.9, -2.2 -0.26
%FMPrior to Competition 0.97b -3.38a 0.72 2.65 3.7 8.8, -1.4 -0.40
FMPeriod of Stability 0.95b -1.57a 0.82 1.94 2.1 5.8, -1.7 -0.46
FMPrior to Competition 0.94b -2.09a 0.78 1.89 2.6 6.2, -1.1 -0.29
FFMPeriod of Stability 1.09b -3.14a 0.96 1.88 -2.7 1.1, -6.4 -0.42
FFMPrior to Competition 1.00b 3.51a 0.95 1.98 -3.2 0.6, -7.0 -0.15
  1. Abbreviations: %FM: relative fat mass; FM: fat mass; FFM: fat-free mass;
  2. *Performance criteria: slope, intercept, coefficient of correlation (r), standard error of estimation (s.e.e.) and the agreement (bias, limits and trend) between %FM, FM and FFM from the reference method and DXA
  3. aSignificantly different from 0, p < 0.05.
  4. bSignificantly different from 1, p < 0.05.