Table 2.

Dementia sensitivity and specificity of each MIS score with corresponding probabilities of dementia (PPV) at different base rates

MISAll dementiaProbability of dementia (PPV) at different base rates
SensitivitySpecificity5%10%15%20%
MIS = Memory Impairment Screen; PPV = positive predictive value.
00.241.001.001.001.001.00
10.441.000.910.950.970.98
20.540.990.750.870.910.94
30.740.980.630.780.850.89
40.800.960.520.690.780.84
50.860.910.350.530.640.72
60.900.810.200.340.450.54
70.980.520.100.180.260.34
81.000.000.050.100.150.20