Table 2.
Descriptive summary of DXA measures of lean tissue
| Variable median (IQR) | All (n = 96) | Men (n = 41) | Women (n = 55) | P‐value | Younger (<60, n = 55) | Older (≥60, n = 41) | P‐value |
|---|---|---|---|---|---|---|---|
| Whole‐body lean tissue, kg | 44.7 (37.6–54.7) | 55.4 (51.3–59.5) | 37.9 (35.9–42.2) | <0.001 | 44.8 (37.9–55.5) | 42.6 (36.1–53.3) | 0.310 |
| Appendicular lean tissue, kg | 19.2 (15.6–24.2) | 24.7 (21.7–27.2) | 15.8 (14.7–17.8) | <0.001 | 19.8 (16.3–25.3) | 17.5 (14.7–23.4) | 0.041 |
| Appendicular lean tissue index, kg/m2 | 6.92 (5.82–7.73) | 7.75 (7.38–8.56) | 6.03 (5.50–6.72) | <0.001 | 7.26 (6.03–8.07) | 6.60 (5.52–7.43) | 0.033 |
| Proportion low lean tissue, n/N | 17/96 (18%) | 5/41 (12%) | 12/55 (22%) | 0.341 | 6/55 (11%) | 11/41 (27%) | 0.08 |
| Site specific lean tissue, kg | 0.40 (0.34–0.47) | 0.45 (0.41–0.54) | 0.36 (0.31–0.40) | <0.001 | 0.45 (0.37–0.51) | 0.38 (0.31–0.41) | <0.001 |
Appendicular lean tissue index = (sum of lean soft tissues in the upper and lower limbs (kg))/(height2 (m)). DXA, dual‐energy X‐ray absorptiometry; IQR, interquartile range.