NEFL and Dysphagia: Moreover, in the multivariate Cox proportional hazards regression model adjusted for age and sex, a high plasma NF-L concentration at baseline was significantly associated with future NC (hazard ratio (HR), 3.7; 95 % CI, 1.6–8.4; P < 0.01), dysphagia (HR, 4.9; 95 % CI, 1.5–15.6; P < 0.01), WC (HR, 2.9; 95 % CI, 1.5–5.5; P < 0.01), and falls (HR, 2.3; 95 % CI, 1.2–4.5; P < 0.05) (Table 2).