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Table 4 Sensitivity and Specificity

From: The Autism - Tics, AD/HD and other Comorbidities inventory (A-TAC): further validation of a telephone interview for epidemiological research

Diagnostic Category A-TAC Scale Cut Off Sensitivity/Specificity:
Clinical sample and
Control group
Sensitivity/Specificity:
Clinical, Community samples and Control group
Autism spectrum disorder Gate items 4.5 0.96/0.88 0.91/0.80
   8.5 0.71/0.95 0.61/0.91
AD/HD Gate items 6.0 0.98/0.81 0.91/0.73
   12.5 0.52/0.95 0.56/0.93
Motor coordination Gate items 0.5 0.59/0.85 0.63/0.68
   1 0.28/0.95 0.32/0.87
Perception Gate items 0.5 0.91/0.62 0.92/0.46
   2.5 0.62/0.93 0.55/0.83
Learning* Gate items 1.0 0.88/0.75 0.92/0.60
   3.0 0.23/0.96 0.41/0.93
Planning & organizing tasks Gate items 1.0 0.91/0.80 0.82/0.70
   1.5 0.64/0.91 0.54/0.85
Tics Gate items 1.5 0.92/0.90 0.875/0.86
  1. *) cut-off values determined by the large group
  2. The highest cut off level yielding a sensitivity ≥ 0.90 (≥ 0.95 for ASD and AD/HD) and the lowest yielding a specificity ≥ 0.90 (≥ 0.95 for ASD and AD/HD), with the actual sensitivity and specificity first in the clinical and control groups, then in the larger group including both index groups.