Gutin et al. (A-18) compared three measures of body composition, including dual-energy x-ray absorptiometry (DXA). Subjects were apparently healthy children (21 boys and 22 girls) between the ages of 9 and 11 years. Among the data collected were the following measurements of bodycomposition compartments by DXA. The investigators were interested in the correlation between all possible pairs of these variables.

Bone Fat-Free Fat-Free Mineral Soft Percent Fat Fat Mass Mass Content Tissue 11.35 3.8314 29.9440 1.19745 28.7465 22.90 6.4398 21.6805 0.79250 20.8880 12.70 4.0072 27.6290 0.95620 26.6728 42.20 24.0329 32.9164 1.45740 31.4590 24.85 9.4303 28.5009 1.32505 27.1758 26.25 9.4292 26.4344 1.17412 25.2603 23.80 8.4171 26.9938 1.11230 25.8815 37.40 20.2313 33.8573 1.40790 32.4494 14.00 3.9892 24.4939 0.95505 23.5388 19.35 7.2981 30.3707 1.45545 28.9153 29.35 11.1863 26.8933 1.17775 25.7156 Bone Fat-Free Fat-Free Mineral Soft Percent Fat Fat Mass Mass Content Tissue 18.05 5.8449 26.5341 1.13820 25.3959 13.95 4.6777 28.9144 1.23730 27.6771 32.85 13.2474 27.0849 1.17515 25.9097 11.40 3.7912 29.5245 1.42780 28.0967 9.60 3.2831 30.8228 1.14840 29.6744 20.90 7.2277 27.3302 1.24890 26.0813 44.70 25.7246 31.8461 1.51800 30.3281 17.10 5.1219 24.8233 0.84985 23.9734 16.50 5.0749 25.7040 1.09240 24.6116 14.35 5.0341 30.0228 1.40080 28.6220 15.45 4.8695 26.6403 1.07285 25.5674 28.15 10.6715 27.2746 1.24320 26.0314 18.35 5.3847 23.9875 0.94965 23.0379 15.10 5.6724 31.9637 1.32300 30.6407 37.75 25.8342 42.6004 1.88340 40.7170 39.05 19.6950 30.7579 1.50540 29.2525 22.25 7.2755 25.4560 0.88025 24.5757 15.50 4.4964 24.4888 0.96500 23.5238 14.10 4.3088 26.2401 1.17000 25.0701 26.65 11.3263 31.2088 1.48685 29.7219 20.25 8.0265 31.5657 1.50715 30.0586 23.55 10.1197 32.8385 1.34090 31.4976 46.65 24.7954 28.3651 1.22575 27.1394 30.55 10.0462 22.8647 1.01055 21.8541 26.80 9.5499 26.0645 1.05615 25.0083 28.10 9.4096 24.1042 0.97540 23.1288 24.55 14.5113 44.6181 2.17690 42.4412 17.85 6.6987 30.8043 1.23525 29.5690 20.90 6.5967 24.9693 0.97875 23.9905 33.00 12.3689 25.1049 0.96725 24.1377 44.00 26.1997 33.3471 1.42985 31.9172 19.00 5.0785 21.6926 0.78090 20.9117 Source: Dr. Mark Litaker. Used with permission.