Socio-demographic and clinical characteristics of the sample and subjects with anxiety symptoms.

*Comparison between persons with and without anxiety symptoms; X2 = Pearson Chi-square test, t = Student’s t test for independent samples, df = degree of freedom; MMSE (Mini Mental State Examination); CAM-Cog (Cambridge Cognitive Examination); SSE (Socio-economic status). Missing data αN = 2; βN = 6; γN = 3; δN = 1; φN = 3.