TTN and sarcopenia: In male patients, urinary titin levels (odds ratio 13.4, 95% confidence interval 1.32–137.0, p = 0.028) and Eastern Cooperative Oncology Group performance status (ECOG PS) (odds ratio 34.7, 95% confidence interval 3.06–394.0, p = 0.004) were found to be significantly associated with the diagnosis of sarcopenia.