Table 2.
Patient demographics.
| Psoas densitya | Psoas areab | ||||||
| Sarcopenia | No sarcopenia | P-value | Sarcopenia | No sarcopenia | P-value | ||
| Patients (n) | 64 | 195 | 61 | 187 | |||
| Median age (years) | 75 (SD 13.9) | 68 (SD 16.2) | 0.001 | 72 (SD 15.7) | 70 (SD 16.0) | 0.180 | |
| Body mass index | 25 (SD 5.0) | 25 (SD 6.9) | 0.410 | 24.4 (SD 6.1) | 25.6 (SD 6.6) | 0.220 | |
| Malignant diagnosis (n) | 18 | 35 | 0.790 | 15 | 36 | 0.380 | |
| Sex ratio M : F | 37 : 28 | 88 : 106 | 0.110 | 30 : 31 | 90 : 97 | 0.880 | |
| Length of stay (days) | 17 (SD 29.1) | 13 (SD 16.2) | < 0.001 | 15 (SD 22.3) | 14 (SD 20.5) | 0.090 | |
| Preoperative P-POSSUM mortality | 15% | 7% | < 0.001 | 6.3% | 8.3% | 0.843 | |
*psoas density <26 Hounsfield Units
**psoas area <3.29cm2/m2 for men and <2.71cm2/m2 for women