Table 3. Body composition measurements per sex.
| Characteristic | Total (n=99) | Male (n=72) | Female (n=27) | P |
|---|---|---|---|---|
| BMI at diagnosis* | 24.38 (21.52–26.72) [14.9–40.1] | 24.65 (22.08–26.86) [14.90–38.40] | 22.05 (18.65–26.18) [15.8–40.1] | NS |
| BSA at diagnosis | 3.71 (0.90) [2.01–6.54] | 3.94 (0.82) [2.56–6.54] | 3.10 (0.82) [2.01–5.77) | <0.001 |
| L3 CSA (cm2) | 140.50 (30.77) [65.32–234.95] | 149.71 (28.52) [81.84–234.95] | 111.93 (22.02) [65.32–158.49] | <0.001 |
| C3 CSA (cm2) | 38.46 (8.21) [19.02–58.82] | 41.22 (7.31) [25.90–58.82] | 31.11 (5.59) [19.02–44.72) | <0.001 |
| MCSA (mm2) | 397.72 (85.28) [234.12–624.35] | 418.71 (84.89) [243.02–624.35] | 341.75 (57.09) [234.12–509.07] | <0.001 |
| MV (cm3) | 18.39 (5.46) [9.03–36.07] | 19.78 (5.21) [9.57–36.07] | 14.71 (4.32) [9.03–28.69] | <0.001 |
| MT (mm) | 13.09 (2.71) [8.80–22.00] | 14.39 (2.93) [8.80-22.00] | 12.11 (1.89) [9.70–16.10] | <0.001 |
| HUtot * | 110.20 (92.30–129.40) [59.50–474.0] | 112.40 (96.53–132.18) [68.10–192.26] | 99.00 (86.60–127.59) [59.50–474.0) | 0.049 |
| HUROI (HU)* | 55.80 (47.40–64.70) [22.00–310.55] | 57.05 (48.09–65.48) [58.10–192.26] | 51.45 (45.90–58.70) [22.0–83.15] | 0.049 |
| LSMI (cm2/m2) | 45.18 (8.23) [23.70–65.08] | 46.94 (8.02) [27.42–65.08] | 40.46 (6.92) [23.70–52.15) | <0.001 |
| MSMI (mm2/m2) | 128.27 (24.60) [75.43–189.27] | 131.71 (26.52) [75.43–189.27] | 119.10 (15.48) [80.07–145.65] | <0.001 |
Comparison of body composition measurements between sexes. P values >0.05 are shown as non-significant (NS). Variables noted by an asterix are displayed in the following format: median (IQR) [range]. Unnoted variables are displayed in the following format: mean (SD) [range]. BMI, body mass index; BSA, body surface area; L3 CSA, lumbar muscle cross sectional area; C3 CSA, cervical muscle cross sectional area; MCSA, masseter cross sectional area; MV, masseter volume; MT, masseter maximum thickness, HUtot, the total HU-value of the measured tissue; HUROI, the HU value of a 1 cm diameter circle in the measured tissue; LSMI, lumbar skeletal muscle index; MSMI, masseter skeletal muscle index.