Table 3

Score-specific likelihood ratios of Eurotest and post-test probabilities of dementia associated with different prevalences of dementia

Eurotest score
Patients with dementia*
Patients with no dementia*
LR
Prevalence of dementia









0.05
0.1
0.2
0.27#
0.5

≤ 16
76 (0.75)
28 (0.07)
10.7
0.35
0.54
0.73
0.8
0.91
17–18
7 (0.07)
17 (0.04)
2.8
0.08
0.24
0.41
0.51
0.74
19–20
9 (0.09)
25 (0.06)
1.5
0.07
0.14
0.27
0.36
0.60
21–22
4 (0.04)
27 (0.07)
0.6
0.03
0.06
0.13
0.17
0.37
≥ 23
5 (0.05)
283 (0.74)
0.07
<0.01
<0.01
0.02
0.02
0.06
Total
101 (1.00)
380 (1.00)







LR, likelihood ratio.

*Number of subjects (probability within the column). #Prevalence in this study.

Carnero-Pardo et al. BMC Neurology 2006 6:15   doi:10.1186/1471-2377-6-15