Table 2

Diagnostic properties of apraxia screening tests

 AD vs HCbvFTD vs HC
AUC (CI)Cut-offSensitivity (%)Specificity (%)AUC (CI)Cut-OffSensitivity (%)Specificity (%)
CAS0.91 (0.81 to 1.0)7385900.98 (0.94 to 1.00)749585
IAT0.87 (0.78 to 0.98)2175800.82 (0.67 to 0.96)228070
MI0.88 (0.78 to 0.98)2075800.85 (0.73 to 0.97)218070
  • CI (p<0.05).

  • AD, Alzheimer's dementia; AUC, area under curve; bvFTD, behavioural variant frontotemporal dementia; CAS, Cologne Apraxia Screening; Cut-off, optimal cut-off value; CI, confidence interval; HC, healthy controls; IAT, Ideomotor Apraxia Test; MI, Münster Apraxia Items.