Comparison of prevalence of low fat-free mass index (FFMI) and low appendicular skeletal muscle index (sarcopenia) across body mass index categories
| Low FFMI | Normal FFMI | Total | |
| Underweight | |||
| Non-sarcopenic | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| Sarcopenic | 62 (83.8) | 12 (16.2) | 74 (100.0) |
| Total | 62 (83.8) | 12 (16.2) | 74 (100.0) |
| Normal weight | |||
| Non-sarcopenic | 0 (0.0) | 6 (3.1) | 6 (3.1) |
| Sarcopenic | 92 (48.2) | 93 (48.7) | 185 (96.9) |
| Total | 92 (48.2) | 99 (51.8) | 191 (100.0) |
| Overweight | |||
| Non-sarcopenic | 0 (0.0) | 18 (12.4) | 18 (12.4) |
| Sarcopenic | 20 (13.8) | 107 (73.8) | 127 (87.6) |
| Total | 20 (13.8) | 125 (86.2) | 145 (100.0) |
| Obese | |||
| Non-sarcopenic | 0 (0.0) | 44 (46.3) | 44 (46.3) |
| Sarcopenic | 0 (0.0) | 51 (53.7) | 51 (53.7) |
| Total | 0 (0.0) | 95 (100.0) | 95 (100.0) |
| Total | |||
| Non-sarcopenic | 0 (0.0) | 68 (13.5) | 68 (13.5) |
| Sarcopenic | 174 (34.5) | 263 (52.1) | 437 (86.5) |
| Total | 174 (34.5) | 331 (65.5) | 505 (100.0) |
Data are presented as n (%).