Associations between each 10 cm2·m−2 increase in tSMI or lSMI and death, NRS breathlessness, post-6MWT breathlessness (Borg) and 6MWT distance#
| tSMI | lSMI | |
| Subjects n | 86 | 50 |
| Death hazard ratio (95% CI) | 0.94 (0.70–1.26) | 0.97 (0.57–1.64) |
| Breathlessness (0–10, NRS) | 0.08 (p=0.80) | 0.82 (p=0.18) |
| Exertional breathlessness (Borg) | 0.02 (p=0.96) | 0.56 (p=0.42) |
| 6MWT distance m | −0.57 (p=0.96) | −18.1 (p=0.54) |
Data are presented as β-coefficients, unless otherwise stated. tSMI: thorax skeletal muscle index; lSMI: lumber skeletal muscle index; NRS: numerical rating scale; 6MWT: 6-min walk test. #: adjusted for age, sex, pack-years of smoking, presence of chronic obstructive pulmonary disease and handgrip weakness.