Table 1 Baseline characteristics of the propensity score-matched sarcopenic and non-sarcopenic groups
Characteristics | Total population (N = 452) |  | Propensity-matched population (N = 70) |  | ||
|---|---|---|---|---|---|---|
Low muscle mass | Â | Low muscle mass | Â | |||
Yes (n = 35) | No (n = 417) | p-value | Yes (n = 35) | No (n = 35) | p-value | |
Number | 35 | 417 | Â | 35 | 35 | Â |
Age at surgery, years (SD) | 74.5 (6.5) | 70.5 (6.6) | 0.001 | 74.51 (6.46) | 74.19 (6.69) | 0.684 |
Sex (%) | ||||||
 Female | 33 (94.3) | 359 (86.1) | 0.266 | 33 (94.3) | 33 (94.3) | 1 |
 Male | 2 (5.7) | 58 (13.9) |  | 2 (5.7) | 2 (5.7) |  |
BMI, kg/m2 (SD) | 23.9 (3.4) | 26.7 (3.2) | < 0.001 | 23.9 (3.4) | 24.1 (2.6) | 0.691 |
mCCI | Â | Â | 0.462 | Â | Â | 0.537 |
 0 | 15 (52.9) | 191 (45.8) |  | 15 (42.9) | 16 (45.7) |  |
 1 | 12 (34.3) | 94 (22.5) |  | 12 (34.3) | 8 (22.9) |  |
 2 | 3 (8.6) | 58 (13.9) |  | 3 (8.6) | 2 (5.7) |  |
  ≥ 3 | 5 (14.3) | 74 (17.7) |  | 5 (14.3) | 9 (25.7) |  |
Type of surgery (%) | Â | Â | 0.486 | Â | Â | 1 |
 Unilateral (%) | 20 (57.1) | 211 (50.6) |  | 20 (57.1) | 20 (57.1) |  |
 Bilateral (%) | 15 (42.9) | 206 (49.4) |  | 15 (42.9) | 15 (42.9) |  |
Tranexamic acid (%) | 31 (88.6) | 390 (93.5) | 0.286 | 31 (88.6) | 29 (82.9) | 0.733 |
Haemoglobin, g/dL (SD) | 12.2 (1.2) | 13.0 (1.7) | 0.004 | 12.2 (1.2) | 12.2 (0.9) | 0.830 |
Platelet count × /109L (SD) | 248.2 (54.1) | 239.8 (57.7) | 0.402 | 248.2 (54.1) | 259.9 (60.5) | 0.400 |
Total protein, mg/dL (SD) | 6.7 (0.4) | 7.1 (0.4) | < 0.001 | 6.7 (0.4) | 6.8 (0.5) | 0.753 |