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. Author manuscript; available in PMC: 2016 May 2.
Published in final edited form as: J Alzheimers Dis. 2016 Mar 8;52(1):191–203. doi: 10.3233/JAD-150702

Table 3.

Accuracy of the Dementia Screening Index (DSI) and MHAS Late Life Risk Index

MHAS (95% CI) DSI (95% CI)
Area under the curve 0.74 (0.70–0.77) 0.72 (0.69–0.76)
Sensitivity 0.69 (0.64–0.70) 0.57 (0.50–0.63)
Specificity 0.67 (0.66–0.69) 0.78 (0.76–0.79)
Positive predictive value 0.16 (0.14–0.18) 0.19 (0.16–0.22)
Negative predictive value 0.96 (0.95–0.97) 0.95 (0.94–0.96)
Accuracy 68% 76%

The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were calculated according to an optimal cut-off score of 16 points for the MHAS late life risk index and 23 points for the DSI.