Table 1. Patient demographics and preoperative characteristics according to skeletal muscle index one year after radical cystectomy.
| Parameters | Non-sarcopenic patients, (n = 40) | Sarcopenic patients, (n = 40) | P-value |
|---|---|---|---|
| Age, years | 0.262 | ||
| <70 | 24 (60.0) | 19 (47.5) | |
| ≥70 | 16 (40.0) | 21 (52.5) | |
| Sex | 0.363 | ||
| Male | 35 (87.5) | 32 (80.0) | |
| Female | 5 (12.5) | 8 (20.0) | |
| BMI (kg/m2) | 23.41 ± 3.41 | 22.39 ± 2.71 | 0.142 |
| Preoperative SMI (cm2/m2) | 50.51 ± 8.41 | 43.76 ± 6.40 | < 0.001 |
| Preoperative sarcopenia | 0.004 | ||
| No | 33 (82.5) | 21 (52.5) | |
| Yes | 7 (17.5) | 19 (47.5) | |
| ASA classification | 0.499 | ||
| 1 | 6 (15.0) | 4 (10.0) | |
| ≥2 | 34 (85.0) | 36 (90.0) | |
| Clinical stage at latest TUR-BT | 0.014 | ||
| ≤T1 | 25 (62.5) | 14 (35.0) | |
| ≥T2 | 15 (37.5) | 26 (65.0) | |
| Presence of CIS at latest TUR-BT | 0.712 | ||
| No | 35 (87.5) | 37 (92.5) | |
| Yes | 5 (12.5) | 3 (7.5) | |
| BCG instillation history | 0.712 | ||
| No | 37 (92.5) | 35 (87.5) | |
| Yes | 3 (7.5) | 5 (12.5) | |
| Neoadjuvant chemotherapy | 0.762 | ||
| No | 34 (85.0) | 33 (82.5) | |
| Yes | 6 (15.0) | 7 (17.5) | |
ASA = American Society of Anesthesiologists; BCG = Bacille Calmette-Guerin; BMI = body mass index; CIS = Carcinoma in situ; SMI = Skeletal muscle index; TUR-BT = Transurethral tumor resection of bladder tumor