Fig. 2

Calculated negative predictive values depending on the prevalence rate for dementia based on the sensitivities and specificities for the MMSE and different forms of the BDST shown in Table 4. BDST: Bamberg Dementia Screening Test, BDSTs: Bamberg Dementia Screening Test, short form (sum score for the first and second subtest), BDSTus: Bamberg Dementia Screening Test, ultra-short form (only score for the first subtest), MMST: Mini-Mental State Examination. Negative predictive values (no further action indicated according to the test result) computed based on the for prevalence estimates