ALB and sleep disorder: Frailty is related to the higher score of CCI (τ 0.24), higher incidence of emotional (τ 0.19) and sleep disorders (τ 0.21), cognitive impairment (τ 0.29), higher level of neutrophil count (τ 0.14), lower levels of lymphocytes (τ -0.15), hemoglobin (τ -0.17), and albumin (τ -0.21) (Fig. 5).