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Lacruz, M.-E. ; Emeny, R.T. ; Bickel, H.* ; Linkohr, B. ; Ladwig, K.-H.

Feasibility, internal consistency and covariates of TICS-m (Telephone Interview for Cognitive Status - modified) in a population-based sample: Findings from the KORA-Age study.

Int. J. Geriatr. Psychiatry 28, 971-978 (2013)

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OBJECTIVE: Test the feasibility of the modified telephone interview for cognitive status (TICS-m) as a screening tool to detect cognitive impairment in a population-based sample of older subjects. METHODS: Data were collected from 3,578 participants, age 65-94 years, of the KORA-Age study. We used analysis of covariance to test for significant sex, age and educational differences in raw TICS-m scores. Internal consistency was analysed by assessing Cronbach's alpha. Correction for education years was undertaken, and participants were divided in three subgroups following validated cut-offs. Finally, a logistic regression was performed to determine the impact of sex on cognition subgroups. RESULTS: Internal consistency of the TICS-m was 0.78. Study participants needed approximately 5.4 min to complete the interview. Lower raw TICS-m scores were associated with male sex, older age and lower education (all p < 0.0001). After correction for education years, 2,851 (79%) had a non-impaired cognitive status (score >31). Male sex was independently associated with having a score equal to or below 27 and 31 (OR = 1.9, 95%CI 1.4-2.5 and OR = 1.5, 95%CI 1.2-1.7, respectively). CONCLUSIONS: The TICS-m is a feasible questionnaire for community-dwelling older adults with normal cognitive function or moderate cognitive impairment. Lower cognitive performance was associated with being a man, being older, and having fewer years of formal education.

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